This study collected and analyzed the weight of over 6 million healthy dogs in the United States. Pawlicy Advisor conducts business as Pawlicy Insurance Services Inc. in the state of California. During this stage, they show signs of fear, therefore, you should monitor and supervise them. A 6-month-old Pug will weigh between 7-12 pounds. A fully grown Jack Russell has a height of between 10 and 15 inches and weighs around 13 and 17 pounds. Cornell University College of Veterinary Medicine. Teixeira's mother, Dawn Dufault, is the owner and head grower of a flower business, which she began in 2017. We designed our dog weight tracker and weight predictor based on a recent research study carried out by researchers from Banfield Pet Hospitals and the University of Liverpool. The typical weight range of a 12-week-old male Jack Russell Terrier is from 6.3 lbs to 7.8 lbs (2.8 kg to 3.6 kg). As adults, these dogs should have proportionate, athletic, and compact bodies. This article also contains the Jack Russell Terrier growth chart and weight calculator that you can use to approximately tell if your Jack Russell Terrier`s weight is in the normal range. TerrierOwner.com does not intend to provide veterinary advice. It is totally fine if the weight of your Jack Russell Terrier falls in either the dark green or light green region of the graph. Next, use your hands to feel for fat and bones over your dog. Weight of the Jack Russell Terrier. Height, Weight Height: 8 - 15 inches (20 - 38 cm) Weight: 11 - 18 pounds (5 - 8 kg) Health Problems The Jack Chi classifies as a toy-to-small-sized dog. This is also the age where your puppys personality begins to develop. Accordingly, some of the external links on Petcalculator.com are affiliate links. And do you want to know when your Jack Russell Terrier will stop growing and how big your Jack Russell Terrier will get? Here is how I intend to break this topic down for you: Jack Russell Terriers start small and adorable, and one of the best physical characteristics of the Jack Russell Terrier is that they remain small and adorable. As an example, if the puppy weighs 9 pounds, the RER formula would be RER = (30 x 4.08) + 70, which would be 122.4 + 70, or 192. By the time the puppies are six months old, they'll weigh between 9 and 11 pounds. In contrast to their small size, Jack Russell Terriers have big, bold, and independent personalities that make them excellent problem solvers. The average size of a male Jack Russell Terrier is 15 pounds (7 kg) while the average size of a female Jack Russell Terrier is 15 pounds (7 kg). When your Jack Russell reaches those senior years you may notice signs that they are starting to feel their age. When your puppy is three months old, you should expect them to weigh between 2.8 and 3.6 kg. Diet, genetics, health, and physical activity can affect how big your puppy will get. Ichthyosis is an incurable, chronic skin condition that requires medicated shampoos and rinses to manage. But you should also consider his activity level and breed size. The growth pattern of female dogs is different from that of male dogs. Jackadors can weigh between 25 to 50 lbs (9 to 22 kg), and their paw-to-shoulder height can range from 16 to 20 inches (40.6 to 50.8 cm). Jack Russells are considered full-grown when they are 6-8 months of age. The breed is of a medium-density bone structure, so they should not appear overly heavy nor excessively thin. When do Jack Russell Terriers Stop Growing and How Big Do They Get? Welcome to our blog dedicated to terriers, where every article is written by real terrier owners or veterinary professionals. How Much Should a 12-Week-old Jack Russell Terrier Weigh? A healthy Jack Roughly speaking, a female Jack Roughly one to two kilograms is the recommended weight for a female. A common question that individuals ask about Jack Russells is when they can expect their Jack Russell to be considered full-grown. Luna and I certainly wish you the best of luck with your new Jack Russells and the journey you have ahead of you. When puppies are three months old, they typically weigh between 6 and 8 pounds. If you do not own the Jack Russell Terrier yet, make sure you purchase your Jack Russell Terrier from an reputable Jack Russell Terrier breeder. Size and Weight. To determine RER, use the following formula. 1.2.1 They'll Be Terribly Unhappy if Left Alone; 1.2.2 They'll Probably Try to Eat Your Hamster; 1.2.3 They'll Never Go Down Without a Fight; 1.3 Three Reasons to Adopt a Jackweeny How much must a Jack Russell Female at 1 year? Though its body is typically white, they can be any colour. Then use the same scale to weigh yourself without your Jack Russell Terrier. Regular weight monitoring will let you detect any abnormal growth very early before it is too late. To learn more about how to calm a Jack Russell see here. This mixed dog breed falls under the small to medium size category. (Weight in kilograms multiplied by 30) + 70 The first step in using this formula is converting your puppy's weight into kilos. However, male dogs usually grow at a different rate compared to female dogs. .css-1ew3ln7{-webkit-text-decoration:none;text-decoration:none;color:#3f6587;color:#212529;}.css-1ew3ln7:hover{color:#3f6587;-webkit-text-decoration:underline;text-decoration:underline;}How Pet Insurance Works. When you know the growth, height, and other statistics of your puppys parents, you will have an idea of how big they will be. Stick with recommended and trusted brands for your dog food. Hopefully, this article has answered most of your questions about the growth of Jack Russells including the common health problems and factors that can affect their growth. Also, check out our Jack Russell Terrier buying guide and Jack Russell Terrier price guide here. These tools will also help tell if your Jack Russell Terrier is growing normally. This is the age where you spay or neuter them because they will start exhibiting sexual behaviors. Dr. One final reason to keep track of your Jack Russell Terrier`s weight and growth is that your Jack Russell Terrier`s weight and growth pattern can tell you if your Jack Russell Terrier has some underlying health conditions (such as bone, heart, hormone diseases). Below is what a normal growth pattern and what abnormal growth patterns look like in Jack Russell Terriers. If your puppy is overweight, you can help them lose weight by reducing their caloric intake and increasing their physical exercise. The Jack Tzu may be a small dog that is a little less energetic than a Jack Russell, but he still has a lot of energy. Things to watch out for are; Change in mood Weight: 14 to 23 pounds. Provided you raise them correctly by feeding them a healthy diet and exercising them, your Jack will grow to be a happy friend their whole life. For this reason, it`s important that the standard height and weight charts for dogs are gender-specific. The Jack Russell Terrier is a small but powerful dog. The typical weight for a 12-week-old Jack Russell Terrier puppy is 7.1 lbs (3.2 kg). Komondor. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'jackrussellworld_co_uk-medrectangle-3','ezslot_9',107,'0','0'])};__ez_fad_position('div-gpt-ad-jackrussellworld_co_uk-medrectangle-3-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'jackrussellworld_co_uk-medrectangle-3','ezslot_10',107,'0','1'])};__ez_fad_position('div-gpt-ad-jackrussellworld_co_uk-medrectangle-3-0_1');.medrectangle-3-multi-107{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:15px!important;margin-left:auto!important;margin-right:auto!important;margin-top:15px!important;max-width:100%!important;min-height:250px;min-width:250px;padding:0;text-align:center!important}According to the breed standard of the Jack Russell Terrier, males should be between 14-16 lbs when theyre full grown. On average, they stand between 10 to 15 inches tall at the shoulder and weigh anywhere from 13 to 17 pounds. can be easily affected by health conditions such as increased dysplasia, shortness of breath, cardiovascular disease, and articulation problems. Whether you're a new terrier owner or have been a terrier parent for years, you'll find helpful and informative articles that will enhance your understanding of these spunky and lovable dogs. Weight. Jack Russell Terrier Neonatal Period is from Birth to 2 weeks. However, you can help your puppy to reach their maximum growth by feeding them a healthy balanced diet and exercising them regularly. Jack Russells are loving and energetic dogs that need optimum care to live their best life and grow to their full potential without any health conditions. You can use this growth trajectory to accurately predict how big your Jack Russell Terrier will get. She has been taking care of animals all of her life and she wants to share her experience with other dog lovers. Above is a graph that shows how much a Jack Russell Terrier should weigh at different ages. This article will give you information regarding the Jack Russell growth chart and what to expect throughout their life stage. jackrussellworld.co.uk is a participant in the Amazon Services LLC Associates Program and other affiliate advertising programs designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. They have a strong chest and rib cage with a belly that should not dip below their elbow. The Rat Terriers stand tall at about 8 to 23 inches at their shoulder and weigh between 4 to 35 pounds when they are fully grown. It is also important that you consult with your vet on how to help your Jack Russell get in their right weight, as there could be underlying health conditions causing your puppy to be overweight or underweight. Males tend to be slightly larger, so if your puppy is a boy, he might be on the higher end of these ranges or a little above them. How Long Toy Poodles Live. Listed below are the most common Jack Russell facts. However, if you do not have a record of the weekly weights of your Jack Russell Terrier, and you want to tell if your dog is overweight, underweight, or of normal weight, then you can use a chart called the body condition chart shown below. At 6 months, the Jack Russell male weighs on average between 5.1 kg for the smallest individuals and 6.4 kg for the largest individuals. If you're a proud guardian of a large breed you should feed them puppy food that has increased amounts of calcium which they need for their rapid and expansive bone growth during this period. However, weight in the dark green region is more typical for Jack Russell Terriers. The average weight of a Jack russel is about 15 to 20 pounds. However, a recent research study on dog weight shows that 12-week-old female Jack Russell Terriers can normally weigh as low as 2.3 lbs (1.1 kg) and as high as 9.3 lbs (4.2 kg), Correspondingly, 12-week-old male Jack Russell Terriers can normally weigh as low as 2.4 lbs (1.1 kg) and as high as 10.7 lbs (4.9 kg). Now that you know how much an adult Jack Russell Terrier weighs, you may want to know how that compares to a puppy of the same breed. The average weight of a 12-week-old male Jack Russell Terrier is 7.1 lbs (3.2 kg). The breed is especially prone to getting ringworms, eye disorders, and ichthyosis (a rare condition that causes painful, scaly skin). The typical weight range of a 6-month-old male Jack Russell Terrier is from 11.2 lbs to 14.2 lbs (5.1 kg to 6.4 kg). Gum disease this happens when the supporting structures of the teeth are inflamed due to the accumulation of bacteria, food, and minerals which leads to the formation of tartar. Shorty Jacks may look the Dachshunds or Corgis. By the 5th week, the puppy will be enjoying their playtime and become more aware of their surroundings. As mentioned earlier in this article, a very accurate way to know if your Jack Russell Terrier puppy is on its way to becoming overweight is by weighing your dog every week and recording its weight. However, a recent research study on dog weight shows that 1-year-old female Jack Russell Terriers can normally weigh as low as 5.6 lbs (2.6 kg) and as high as 20.7 lbs (9.4 kg), Correspondingly, 1-year-old male Jack Russell Terriers can normally weigh as low as 6.6 lbs (3.0 kg) and as high as 23.7 lbs (10.7 kg). Reducing the calories means reducing the amount of food they eat, It is also important that you consult with your vet. Puppy growth predictors, growth charts, and growth calculators like the ones above are approximate methods for predicting growth in dogs. You should avoid feeding them homemade food as it may be difficult to measure the fiber intake, fat, carbohydrate, and protein content. 12 and 15 inches tall at shoulders. Below is typical growth and weight chart of a Male Jack Russell Terrier in Kilograms (kg).AgeAverage WeightTypical Weight Range15 Weeks4 KG3 KG 4 KG20 Weeks5 KG4 KG 5 KG25 Weeks5 KG5 KG 6 KG30 Weeks6 KG5 KG 7 KG35 Weeks6 KG6 KG 7 KG40 Weeks7 KG6 KG 7 KG45 Weeks7 KG6 KG 8 KG60 Weeks7 KG6 KG 8 KG, Below is typical growth and weight chart of a Female Jack Russell Terrier in Kilograms (kg).AgeAverage WeightTypical Weight Range15 Weeks4 KG3 KG 4 KG20 Weeks5 KG4 KG 5 KG25 Weeks5 KG5 KG 6 KG30 Weeks6 KG5 KG 7 KG35 Weeks6 KG6 KG 7 KG40 Weeks7 KG6 KG 7 KG45 Weeks7 KG6 KG 8 KG60 Weeks7 KG6 KG 8 KG. During this stage, their siblings and mother play an important role in keeping them warm. Note that supplements cannot make up for inadequate nutrients, but foods high in nutrients will ensure they are healthy. Pancreatitis this is a common problem with Jack Russells, and it is the inflammation of the pancreas. If you plan on bringing a puppy into your home, be sure that he gets regular exercise this will help to keep him from gaining too much weight. Jack Russell puppies need 4 feedings of 2oz - 3oz dog food a day until the puppy is 3 months old, decreasing to 3 feedings a day from then until the puppy is 6 months old. If you have an older dog or a dog with an infection in the womb, the spaying procedure can cost up to 1,000. Naturally, a pup this tiny should always be crossed with another smaller sized dog. A balanced diet with essential nutrients combined with the physical activity of your choice will ensure that they have a healthy life. Also, you can use the Jack Russell Terrier weight calculator below to find the typical weight and the normal weight range of Jack Russell Terriers, male or female, of any age between 12 weeks and 100 weeks. A jack russel's weight varies according to its size and breed. Above is a graph that shows how much a Jack Russell Terrier should weigh at different ages. Starting from 3 months of age, Jack Russell Terriers grow at a rate of 0.59 pounds per week (0.27 Kilograms per week) on average. Let's analyze your pet's breed, age, and location to find the right coverage and the best savings. Every dog requires care through a healthy diet and exercise to reach their maximum growth, including Jack Russells. Note that the growth pattern of a female Jack Russell Terrier can be slightly different from the growth pattern of a male Jack Russell Terrier, AgeAverage WeightTypical Weight Range15 Weeks8 LBS7 LBS 9 LBS20 Weeks11 LBS9 LBS 12 LBS25 Weeks13 LBS11 LBS 14 LBS30 Weeks14 LBS12 LBS 15 LBS35 Weeks15 LBS13 LBS 16 LBS40 Weeks15 LBS13 LBS 17 LBS45 Weeks15 LBS13 LBS 17 LBS60 Weeks16 LBS14 LBS 18 LBS. How Much Does It Cost to Own A Jack Russell? But what is the typical Jack Russell Weight? Also during this stage, the Jack Russell Terrier puppy learns how to act like a dog (biting, chasing, barking, etc). A Jack Russells height will range from 10 to 12 inches and the ones that are longer is called Shorty Jacks. Save my name, email, and website in this browser for the next time I comment. (4.08 kg). How much should a tall Jack Russell weigh? However, a recent research study on dog weight shows that 4-month-old female Jack Russell Terriers can normally weigh as low as 3.1 lbs (1.4 kg) and as high as 12.1 lbs (5.5 kg), Correspondingly, 4-month-old male Jack Russell Terriers can normally weigh as low as 3.3 lbs (1.5 kg) and as high as 14.0 lbs (6.3 kg). If you own a Boston or considering adopting this energetic, intelligent breed, you would want to know what Are Boston Terriers Good Apartment Dogs? However, puppies tend to grow fast and so don't be surprised to see them put on weight quickly. . Senior Jack Russell Terrier. Jack Russell Terriers can range in size and weight due to breeding and depending on if they are a mixed dog breed. The vet in this video uses a European 5-point system whereas the U.S. system rates your dog on a scale . Enter 14.1 and 18.1 lbs. How Much Should Japanese Chin Weigh? The mix of Beagle and Jack Russell Terrier is also called Jack-A-Bee. Jack Chi puppies are expensive. Here are some examples to give you an idea: Something some of you may not know is that a few factors can even impact how much growth your Jack Russell experiences and how big they ultimately get. Jack Russell Terriers, on average, will range from 10-15 inches tall at the shoulder and weigh between 13-17 pounds when fully grown. If a breeder is asking for this much, you should expect some proof that the dog is an authentic Jack Russell/Shi Tzu crossbreed. For all the new owners reading, do not forget to check out and subscribe to our YouTube channel here. At 3 months old, a Jack Russell Terrier puppy weighs an average of 7 pounds. They can eat solid foods and you can teach them some manners. Our team of writers consists of experienced terrier owners who have firsthand knowledge of the joys and challenges of raising these spirited pups, as well as veterinary professionals who specialize in the care of terriers. Age: Jack Russell Terriers have a lifespan of approximately 15 years. Some pets may weight more or less than or greater the weight range and have a healthy body composition. Jack Russells are a small breed. Below is the typical growth chart and weight chart of Jack Russell Terriers at different stages in their lives. Below is the typical growth and weight chart of a Female Jack Russell Terrier. However, the more accurate method to predict and track normal growth in your Jack Russell Terrier is by regularly weighing your Jack Russell Terrier and recording the weight of your Jack Russell Terrier with our free dog weight tracker and weight predictor. Exercise can be in form of slow or fast walking for 30 minutes or an hour, swimming in the lake, ball games, running following you by bike or foot, frisbee, and agility sessions. Factors That Affect Jack Russell TerrierGrowth. A full-grown Jack Russell terrier weighs 13-17 pounds on average, and his or her height is 10-15 inches on average. Our blog covers a wide range of topics, including breed-specific traits, training tips, nutrition, health concerns, and more. Join 2,438,795+ insured dogs and cats across the US. Doing this with your Jack Russell Terrier will give you a clearer picture of how your Jack Russell Terrier is growing. Therefore, Jack Russells are crossed with either Toy or Miniature Poodles. Make sure they eat regularly, preferably two meals a day, but measure their portions carefully so they don't start gaining excess weight. What Is the Life Expectancy ofJack Russell Terriers? Exercise may not stunt the height of your Jack Russell but can impact the muscle mass they develop which can ultimately impact the overall weight. Also, check out our Jack Russell Terrier food calculator here to know how much food to feed your Jack Russell Terrier based on your Jack Russell Terrier`s weight and age. How to Make Miniature Poodles Live Long, How Long Yorkshire Terriers Live. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. . As pets continue to live longer, they require more veterinary care so they can have the best quality of life. Pug Weight Chart by Age The average weight for a female JRT can vary depending on age, but an adult male weighing 12 kilograms is normal for the breed. They have a strong prey drive and love to explore . Adult active JRT should daily eat approximately 1,25 to 1,75 cups of high-quality dog food. if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[300,250],'terrierowner_com-large-leaderboard-2','ezslot_10',114,'0','0'])};__ez_fad_position('div-gpt-ad-terrierowner_com-large-leaderboard-2-0');A Jack Russell puppy that is 6 months old will weigh 9-11 lbs. TerrierOwner.Com does not intend to provide veterinary advice. This Jack Russell Terrier growth calculator is based on the typical weight curve of a Jack Russell Terrier shown above. Be sure to always get your Jack Russell checked up by a certified vet once per year to ensure they are at peak health. The ongoing cost of treatment for Jack Russell hereditary conditions can quickly add up over the course of your dogs lifetime. Weight. B-vitamins are water-soluble, and so is vitamin C. Vitamin C is actually produced in the dog's body but is still helpful in the diet. How do I make sure my Jack Russell Terrier is healthy? Japanese Chin. Your Jack-A-Ranian hybrid will likely have a compact body with a thick, smooth or broken coat and will weigh in between 6 and 14 pounds when fully matured. As they grow and develop, they will gain weight and reach an adult weight between 13 and 17 pounds. Calorie intake for safe weight loss is 80% of this value (as recommended in the publication 2014 AAHA Weight Management Guidelines for Dogs and Cats). Food/Diet. Earnings from affiliate commissions help keep this website running. The puppy`s teeth will start coming through and its eyes will begin to open. The Jack Russell Terrier puppy will only have the senses of taste and touch. A score of 4 or 5 means that a dog is of ideal weight, and a score above 5 means that a dog is overweight. How to Make Weimaraners Live Long. 4-7 lb. If the weight of your Jack Russell Terrier falls outside both the dark and light green region for its age, then you should consult a vet. What is the size of a full-grown Jack Russell Terrier? On the other hand, the cost of adopting a Jack Russell from a reputable rescue is about $300. How much should you feed a Jack Russell in grams? Mostly, the weight and the height of the puppys parents will give you an idea of the size your puppy will be. Sometimes called a Jackshund, Jackweenie, or a Dachshund terrier mix, this canine is small to medium in size with strong hunting tendencies. By comparing personalized coverage and pricing differences we can save you a ton of money, up to 83% in some instances! On average, Jack Russell Terriers live for between 13 to 16 years. . Like all dogs, Jack Russells are affected by certain health problems including the following: Dislocating lens also known as lens luxation, this condition happens when the ligaments that hold the lens together detach themselves from the lens capsule in the eye. . You can expect your Jack Russell Terrier to cost you a minimum of 50 per month after purchase and set-up costs and over 8,900 across their lifetime. Adult Jack Russell Terriers typically weigh between 13 to 17 pounds. Again, all Jack Russells are different, but for the most part, you can bank on your Jack Russell weighing 12-17lbs. The rapid learning and socialization of the puppy occur at this stage, and what the Jack Russell Terrier puppy learns in this stage will have a long-term effect on the puppy`s behavior as an adult. Check where the weight of your Jack Russell Terrier falls in the graph for its age. Pawlicy Advisor is the leading independent marketplace for finding the best coverage for your pet at the lowest rate. Both males and females are around the same size and typically weigh between 9 and 15 pounds and are between 10 and 12 inches tall. Weight: 8-18 pounds: Height: 12-15 inches: Coat Type: Short coat: Shedding: Low shedding: Energy Level: Very energetic . Most individuals who are contemplating adopting a Jack Russell Terrier are likely curious about how big a full-grown Jack Russell will mature to. At what age is a Jack Russell Terrier fully grown? How much does it cost to spay a Jack Russell Terrier? I wanted to cover a few of those factors in this post: if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[336,280],'terrierowner_com-leader-1','ezslot_12',115,'0','0'])};__ez_fad_position('div-gpt-ad-terrierowner_com-leader-1-0');While diet is unlikely to cause much of an impact on your Jack Russells growth, it could if it becomes an issue with a lack of nutrients or nutritional needs that your Jack Russell has to remain healthy. So, how long do Jack Russells live? Jack Russell Food - Dry Food, Wet Food, Cooked or Raw. When the Jack Russell Chihuahua Mix is bred, the dam will usually be the Jack Russell and the sire will be the Chihuahua. As a breed, Jack Russell Terriers are prone to a number of hereditary conditions. Fur: There are three different fur types: smooth, rough, and broken. You should feed an average of 2 small meals to your senior Jack Russel Terrier per day. Your Jack Russell Terrier`s growth pattern can be categorized into 6 distinct stages: Neonatal, Transitional, Socialization Period, Juvenile Period, Adolescent Period, and Maturity. The vet might recommend reducing how much food to feed your Jack Russell Terrier. Like humans, puppies grow at different rates, and this is entirely normal. Share Your Thoughts on Your Jack Russells Size, Weight and Height. At 36 weeks, a female Jack Russell Terrier will have reached 95 percent of its adult weight at 36 weeks. Josh Martin is the proud owner of a female Jack Russell Terrier Named Luna. Originally, this breed of dog was bred to hunt foxes. Also, this growth chart is the combined growth chart of the male and female Jack Russell Terrier. Because the JR makes for such an energetic dog, its important that he gets good nutrition and plenty of exercise. If you can lift your Jack Russell Terrier, you can use a home weigh-in method, using three simple steps : Step on to the scales and weigh yourself. To know which bones to look and feel for, check out the body condition tool guide from the World Small Animal Veterinary Association and this guide. Remember to have regular vet check ups on an annual basis where your dogs health and weight will be monitored by a medical professional. The typical weight range of a 1-year-old female Jack Russell Terrier is from 14.1 lbs to 18.1 lbs (6.4 kg to 8.2 kg). If youre the lucky pet parent to one of these quick and clever terriers, you can use our Jack Russel growth chart to track your puppys development. American Bulldog vs Pitbull Breed Comparison. Seeing your Jack Russell develop and grow from being a puppy to an adult is the best experience. Jugs are about 11 to 14 inches in height and weigh around 13 to 18 pounds. The average weight of a 6-month-old female Jack Russell Terrier is 12.7 lbs (5.8 kg). Italian Greyhound Weight Calculator. Weight in the dark green region is typical, though weight in the light green region is also possible Adult Jack Russell Terriers typically weigh between 13 to 17 pounds. As usual, the mix cobines the psychological traits of pure breeds. Kerry Blue Terrier. At that point, you can switch to 2 meals per day until the puppy reaches full growth at about 1 year. When Is It Too Cold For Your German Shepherd? Despite their size (10 to 15 inches at the shoulder, and weighing in at 13 to 17 pounds), they are high energy dogs, known for their speed and endurance. The average weight of a male Jack Russell is between 16 and 20 pounds, whereas the average weight of a female Jack Russell falls within the range of 12 to 16 pounds.