Dog Ideal Weight Calculator
Estimate a healthy weight range for your dog. Add breed, age, sex, weight and a body condition score, then read your result.
Your dog’s details
Your result
The calculator finds your dog’s ideal weight from its body condition score. A score of 4 or 5 means your dog is already at a healthy weight. Every point above 5 adds roughly 10% to body weight, so we work backward to the weight that would score a 5.
How the dog ideal weight calculator works
The method follows a rule of thumb that many vet clinics use with the 9-point body condition scale. It starts with what your dog looks and feels like, because that is more reliable than a breed average. Then it checks the answer against breed size and age.
- Find the target weight. A score of 4 or 5 is ideal, so today’s weight is the target. For any other score, each point away from 5 is about 10% of body weight.
- Build the healthy range. We allow 5% on each side of the target. That gives the healthy weight range shown in your result.
- Add breed and age context. We compare your dog with the usual adult range for the breed and sex, or with the size group for a mixed-breed dog. For puppies we scale that range to the dog’s age. We flag results that look far from typical.
Target = current weight ÷ (1 + 0.1 × (score − 5)) for scores 1 to 3 and 6 to 9
Target = current weight for scores 4 and 5
Healthy range = target × 0.95 to target × 1.05
Weight change = target − current weightStatus labels
Scores 1 to 3 are underweight. Scores 4 and 5 are ideal weight. Scores 6 and 7 are overweight. Scores 8 and 9 are obese. The label comes from the score, not from the breed chart.
Rounding rules
- All weights are rounded to the nearest 0.1 in the unit you chose.
- Percentages are rounded to whole numbers.
- Pounds and kilograms use 1 kg = 2.2046 lb.
- The weight loss timeline rounds up to whole weeks.
What the method cannot do
It cannot measure muscle, check for illness, or know if your dog is pregnant or on medicine. It also depends on an honest score. If you are unsure between two scores, pick the lower one and ask your vet to check.
Dog body condition score guide (1 to 9)
Stand over your dog and look down. Then run your hands along the ribs. Pick the score that fits best. Use your hands as well as your eyes, because thick fur can hide the ribs.
| Score | Status | What you see and feel |
|---|---|---|
| 1 | Underweight | Ribs, spine and hip bones show from a distance. No fat can be felt. Muscle is clearly lost. |
| 2 | Underweight | Ribs, spine and hip bones are easy to see. Very little fat. The waist is deeply tucked. |
| 3 | Underweight | Ribs are easy to feel and may show. The waist is clear and the belly is tucked up. |
| 4 | Ideal weight | Ribs are easy to feel with a thin fat layer. The waist is clear from above. Belly tucks up. |
| 5 | Ideal weight | Ribs can be felt without pressing hard. The waist shows from above. Belly tucks up from the side. |
| 6 | Overweight | Ribs can be felt with some pressing. The waist is faint. The belly tuck is slight. |
| 7 | Overweight | Ribs are hard to feel under thick fat. There is little or no waist. Fat shows on the back and tail base. |
| 8 | Obese | Ribs cannot be felt under heavy fat. No waist. The belly sags and the back looks broad. |
| 9 | Obese | Heavy fat covers the chest, spine and tail base. The belly is large and the waist is gone. |
Signs your dog may be overweight
- You have to press to find the ribs
- No waist when you look from above
- The belly hangs or does not tuck up from the side
- Fat over the back and the base of the tail
- Tires quickly on walks, or pants more than before
Signs your dog may be underweight
- Ribs, spine or hip bones are easy to see
- A deep tuck at the waist and belly
- Little or no fat can be felt over the ribs
- Low energy, a dull coat, or lost muscle on the back legs
How to check your dog’s weight and body condition at home
- Stand your dog on a flat floor. Let your dog stand relaxed, in good light.
- Feel the ribs. Run your fingers lightly along both sides of the chest. You should feel each rib under a thin layer of fat without pressing hard.
- Look from above. A healthy dog has a clear waist that tucks in behind the ribs.
- Look from the side. The belly should tuck up from the chest toward the back legs.
- Weigh your dog. For a small dog, use a kitchen or baby scale. For a larger dog, weigh yourself, then weigh yourself holding your dog, and subtract.
- Pick a score and enter the numbers. Use the same time of day and the same scale each time.
Weigh before a meal for the fairest number. Write the weight and score down each month, or use the Copy link button on your result to save it.
Dog breed weight chart: typical adult weights
This chart shows the usual healthy adult weight range for more than 50 popular breeds, by sex. The ranges are typical values from common breed descriptions. Individual dogs vary, so treat the chart as context and rely on body condition for your own dog.
| Breed | Size group | Male | Female |
|---|---|---|---|
| Akita | Giant | 45–59 kg (99–130 lb) | 32–45 kg (71–99 lb) |
| Alaskan Malamute | Large | 34–45 kg (75–99 lb) | 29–38 kg (64–84 lb) |
| Australian Cattle Dog | Medium | 15–22 kg (33–49 lb) | 15–22 kg (33–49 lb) |
| Australian Shepherd | Large | 23–29.5 kg (51–65 lb) | 18–25 kg (40–55 lb) |
| Basset Hound | Medium | 20–29.5 kg (44–65 lb) | 18–27 kg (40–60 lb) |
| Beagle | Medium | 9–13.6 kg (20–30 lb) | 8.2–12.7 kg (18–28 lb) |
| Bernese Mountain Dog | Large | 36–52 kg (79–115 lb) | 32–43 kg (71–95 lb) |
| Bichon Frise | Small | 5.4–8.2 kg (12–18 lb) | 5.4–8.2 kg (12–18 lb) |
| Border Collie | Medium | 14–22.7 kg (31–50 lb) | 12–20 kg (26–44 lb) |
| Boston Terrier | Small | 5.4–11.3 kg (12–25 lb) | 5.4–11.3 kg (12–25 lb) |
| Boxer | Large | 29.5–36 kg (65–79 lb) | 22.7–29.5 kg (50–65 lb) |
| Bulldog (English) | Medium | 22.7–25 kg (50–55 lb) | 18–22.7 kg (40–50 lb) |
| Cane Corso | Giant | 45–50 kg (99–110 lb) | 40–45 kg (88–99 lb) |
| Cavalier King Charles Spaniel | Small | 5.9–8.2 kg (13–18 lb) | 5.9–8.2 kg (13–18 lb) |
| Chihuahua | Toy | 1.4–2.7 kg (3–6 lb) | 1.4–2.7 kg (3–6 lb) |
| Cocker Spaniel (American) | Medium | 9–13.6 kg (20–30 lb) | 8–12.7 kg (18–28 lb) |
| Corgi (Pembroke Welsh) | Medium | 10–13.6 kg (22–30 lb) | 10–12.7 kg (22–28 lb) |
| Dachshund (Standard) | Small | 7.3–14.5 kg (16–32 lb) | 7.3–14.5 kg (16–32 lb) |
| Dachshund (Miniature) | Toy | 3.2–5.4 kg (7–12 lb) | 3.2–5.4 kg (7–12 lb) |
| Doberman Pinscher | Large | 34–45 kg (75–99 lb) | 27–41 kg (60–90 lb) |
| French Bulldog | Small | 7.3–12.7 kg (16–28 lb) | 7.3–11 kg (16–24 lb) |
| German Shepherd | Large | 29.5–40.8 kg (65–90 lb) | 22.7–31.8 kg (50–70 lb) |
| German Shorthaired Pointer | Large | 25–32 kg (55–71 lb) | 20–27 kg (44–60 lb) |
| Golden Retriever | Large | 29.5–34 kg (65–75 lb) | 25–29.5 kg (55–65 lb) |
| Great Dane | Giant | 63.5–79.4 kg (140–175 lb) | 50–63.5 kg (110–140 lb) |
| Great Pyrenees | Giant | 45–60 kg (99–132 lb) | 36–50 kg (79–110 lb) |
| Greyhound | Large | 29.5–32 kg (65–71 lb) | 27–29.5 kg (60–65 lb) |
| Havanese | Toy | 3.2–5.9 kg (7–13 lb) | 3.2–5.9 kg (7–13 lb) |
| Siberian Husky | Medium | 20.4–27.2 kg (45–60 lb) | 16–22.7 kg (35–50 lb) |
| Jack Russell Terrier | Small | 6–7.7 kg (13–17 lb) | 5.4–7.2 kg (12–16 lb) |
| Labrador Retriever | Large | 29.5–36.3 kg (65–80 lb) | 25–31.8 kg (55–70 lb) |
| Maltese | Toy | 1.8–3.2 kg (4–7 lb) | 1.8–3.2 kg (4–7 lb) |
| Mastiff (English) | Giant | 73–104 kg (161–229 lb) | 54–77 kg (119–170 lb) |
| Miniature Pinscher | Toy | 3.6–5 kg (8–11 lb) | 3.6–5 kg (8–11 lb) |
| Miniature Schnauzer | Small | 5–9 kg (11–20 lb) | 5–9 kg (11–20 lb) |
| Newfoundland | Giant | 59–68 kg (130–150 lb) | 45–54 kg (99–119 lb) |
| American Staffordshire Terrier | Large | 25–32 kg (55–71 lb) | 18–25 kg (40–55 lb) |
| Pomeranian | Toy | 1.4–3.2 kg (3–7 lb) | 1.4–3.2 kg (3–7 lb) |
| Poodle (Toy) | Toy | 2–4 kg (4–9 lb) | 2–4 kg (4–9 lb) |
| Poodle (Miniature) | Small | 4.5–7 kg (10–15 lb) | 4.5–7 kg (10–15 lb) |
| Poodle (Standard) | Large | 27–32 kg (60–71 lb) | 18–22.7 kg (40–50 lb) |
| Pug | Small | 6.4–8.2 kg (14–18 lb) | 6.4–8.2 kg (14–18 lb) |
| Rhodesian Ridgeback | Large | 36–41 kg (79–90 lb) | 29–34 kg (64–75 lb) |
| Rottweiler | Giant | 43–61 kg (95–134 lb) | 36–45 kg (79–99 lb) |
| Saint Bernard | Giant | 63.5–82 kg (140–181 lb) | 54–73 kg (119–161 lb) |
| Samoyed | Medium | 20–29.5 kg (44–65 lb) | 16–22.7 kg (35–50 lb) |
| Shetland Sheepdog | Small | 6.4–12 kg (14–26 lb) | 6.4–12 kg (14–26 lb) |
| Shiba Inu | Small | 8.2–11 kg (18–24 lb) | 6.4–9 kg (14–20 lb) |
| Shih Tzu | Small | 4–7.3 kg (9–16 lb) | 4–7.3 kg (9–16 lb) |
| Vizsla | Large | 25–27 kg (55–60 lb) | 20–25 kg (44–55 lb) |
| Weimaraner | Large | 32–41 kg (71–90 lb) | 25–34 kg (55–75 lb) |
| West Highland White Terrier | Small | 6.8–9.1 kg (15–20 lb) | 6.8–9.1 kg (15–20 lb) |
| Yorkshire Terrier | Toy | 1.8–3.2 kg (4–7 lb) | 1.8–3.2 kg (4–7 lb) |
Size groups: toy up to 5 kg, small 5 to 11 kg, medium 11 to 25 kg, large 25 to 45 kg, giant over 45 kg (adult weight, by sex).
Puppy growth table: share of adult weight by age
A puppy grows fast at first and then slows. Small dogs reach full size sooner than large ones. This table shows the usual share of adult weight a puppy has reached at each age. The calculator uses it to show the usual weight for your puppy’s age and a likely adult weight.
| Size group | 2 mo | 3 mo | 4 mo | 6 mo | 8 mo | 10 mo | 12 mo | 15 mo | 18 mo |
|---|---|---|---|---|---|---|---|---|---|
| Toy | 28% | 40% | 52% | 74% | 90% | 100% | 100% | 100% | 100% |
| Small | 26% | 38% | 50% | 72% | 88% | 100% | 100% | 100% | 100% |
| Medium | 22% | 34% | 46% | 68% | 84% | 94% | 100% | 100% | 100% |
| Large | 18% | 28% | 38% | 58% | 74% | 86% | 94% | 100% | 100% |
| Giant | 14% | 22% | 31% | 48% | 62% | 74% | 84% | 92% | 97% |
Puppy weight chart by age and size group
The next table turns those percentages into typical weights. Each cell is the usual range for a puppy of that size group at that age. Your puppy’s breed may sit near the low or high end.
| Age | Toy | Small | Medium | Large | Giant |
|---|---|---|---|---|---|
| 2 months | 0.3–1.4 kg (0.6–3.1 lb) | 1.3–2.9 kg (2.9–6.3 lb) | 2.4–5.5 kg (5.3–12 lb) | 4.5–8.1 kg (9.9–18 lb) | 6.3–11 kg (14–25 lb) |
| 3 months | 0.4–2.0 kg (0.9–4.4 lb) | 1.9–4.2 kg (4.2–9.2 lb) | 3.7–8.5 kg (8.2–19 lb) | 7.0–13 kg (15–28 lb) | 9.9–18 kg (22–39 lb) |
| 4 months | 0.5–2.6 kg (1.1–5.7 lb) | 2.5–5.5 kg (5.5–12 lb) | 5.1–12 kg (11–25 lb) | 9.5–17 kg (21–38 lb) | 14–25 kg (31–55 lb) |
| 6 months | 0.7–3.7 kg (1.6–8.2 lb) | 3.6–7.9 kg (7.9–17 lb) | 7.5–17 kg (16–37 lb) | 14–26 kg (32–58 lb) | 22–38 kg (48–85 lb) |
| 8 months | 0.9–4.5 kg (2.0–9.9 lb) | 4.4–9.7 kg (9.7–21 lb) | 9.2–21 kg (20–46 lb) | 18–33 kg (41–73 lb) | 28–50 kg (62–109 lb) |
| 10 months | 1.0–5.0 kg (2.2–11 lb) | 5.0–11 kg (11–24 lb) | 10–24 kg (23–52 lb) | 22–39 kg (47–85 lb) | 33–59 kg (73–131 lb) |
| 12 months | 1.0–5.0 kg (2.2–11 lb) | 5.0–11 kg (11–24 lb) | 11–25 kg (24–55 lb) | 24–42 kg (52–93 lb) | 38–67 kg (83–148 lb) |
| 15 months | 1.0–5.0 kg (2.2–11 lb) | 5.0–11 kg (11–24 lb) | 11–25 kg (24–55 lb) | 25–45 kg (55–99 lb) | 41–74 kg (91–162 lb) |
| 18 months | 1.0–5.0 kg (2.2–11 lb) | 5.0–11 kg (11–24 lb) | 11–25 kg (24–55 lb) | 25–45 kg (55–99 lb) | 44–78 kg (96–171 lb) |
For example, a medium-size puppy at 6 months is usually about 68% of its adult weight. If it weighs 12 kg, the likely adult weight is about 17.6 kg. Treat that as a rough guide. Growth varies with breed, diet and genes.
Do not put a growing puppy on a diet unless your vet gives you a plan. Puppies need steady growth and the right nutrients.
Senior dogs and life stages by size
A dog counts as a puppy until it reaches full size, and as a senior once it passes a size-based age. Big dogs age faster than small ones, so their senior stage starts earlier. These are the ages the calculator uses.
| Size group | Adult weight | Full size at | Senior from |
|---|---|---|---|
| Toy | 1–5 kg (2–11 lb) | About 9 months | About 10 years |
| Small | 5–11 kg (11–24 lb) | About 10 months | About 10 years |
| Medium | 11–25 kg (24–55 lb) | About 12 months | About 9 years |
| Large | 25–45 kg (55–99 lb) | About 15 months | About 7 years |
| Giant | 45–80 kg (99–176 lb) | About 20 months | About 6 years |
Older dogs can lose muscle even while they gain fat, so the number on the scale can hide a problem. Sudden weight loss in an older dog can signal illness. If your senior dog loses weight without a diet change, book a vet visit.
How fast should an overweight dog lose weight?
Slow and steady works best. Vets often plan for a loss of about 1% to 2% of body weight per week. Faster loss can cost muscle and may harm health.
For an overweight adult or senior dog, the calculator divides the weight to lose by 1% and 2% of the current weight. That gives a range of weeks. For a dog that needs to lose 17% of its weight, the range is about 9 to 17 weeks.
- Measure food with a scale or a marked cup, not by eye
- Count treats as part of the daily food
- Add short, regular walks before adding hard exercise
- Weigh every two to four weeks and re-score body condition
- Ask your vet to set the food amount and check for health causes
The tool shows no weight loss timeline for puppies, because they need steady growth, not a diet.
Worked examples of dog ideal weight calculations
1. Adult Labrador, overweight
A 6-year-old male Labrador weighs 34.0 kg and scores 7. Target = 34.0 ÷ (1 + 0.1 × 2) = 34.0 ÷ 1.2 = 28.3 kg. The healthy range is 26.9 to 29.8 kg. That is 5.7 kg (17%) less than now. At 1% to 2% per week, about 9 to 17 weeks.
2. Puppy, using pounds
A 4-month-old female Golden Retriever weighs 20 lbs and scores 5. She is at a healthy weight, so the target is 20.0 lbs and the range is 19.0 to 21.0 lbs. At 4 months, a dog of this size is usually about 38% grown, so the usual range for her age is 20.9 to 24.7 lbs. She sits a little below it. The likely adult weight is about 52.6 lbs. Ask your vet to follow her growth.
3. Senior Dachshund, underweight
An 11-year-old male Dachshund weighs 14.0 lbs and scores 3. Target = 14.0 ÷ (1 + 0.1 × (3 − 5)) = 14.0 ÷ 0.8 = 17.5 lbs. The range is 16.6 to 18.4 lbs, about 3.5 lbs more than now. Weight loss in an older dog can have a medical cause, so see a vet before changing food.
Common mistakes when checking a dog’s ideal weight
- Guessing the score by looks alone. Thick fur hides ribs. Always use your hands.
- Using a breed chart as the goal. Dogs of one breed come in different frames. Body condition matters more.
- Weighing at different times. Weigh before a meal, on the same scale, for fair comparisons.
- Mixing up units. Check that kg or lbs matches your scale.
- Cutting food hard and fast. Rapid loss can harm muscle and health. Follow a vet plan.
- Dieting a growing puppy. Puppies need steady growth. Ask your vet first.
- Ignoring treats. Treats, chews and table scraps add calories that the scale will show.
Dog weight terms explained
These short definitions explain the words used on this page and in your result.
- Body condition score (BCS)
- A 1 to 9 rating of how lean or heavy a dog is, based on rib cover, waist and belly line. A score of 4 or 5 is ideal.
- Ideal weight
- The weight at which a dog has a body condition score of 4 or 5. It is different for every dog, even within one breed.
- Healthy weight range
- A band of weights, here 5% either side of the target, that suits your dog. Small changes inside the range are normal.
- Frame size
- How big a dog’s bones are. Two dogs of one breed can have different frames, so they can have different ideal weights.
- Lean muscle mass
- Muscle, as opposed to fat. A fit dog can weigh more than the chart because of muscle, which is why feeling the ribs matters.
- Waist (abdominal tuck)
- The narrowing behind the ribs that you see from above and the upward line of the belly that you see from the side.
- Growth curve
- The usual pattern of weight gain from puppy to adult. Small breeds finish growing sooner than large and giant breeds.
- Weight loss pace
- How fast a dog loses weight on a plan. Vets often aim for about 1% to 2% of body weight per week.
Dog ideal weight calculator: frequently asked questions
How accurate is the Dog Ideal Weight Calculator?
It gives an estimate, not a diagnosis. The result depends on how well you score your dog’s body condition. A vet can score it by hand and also check muscle, illness and frame size, which a tool cannot see. Use the result as a starting point for a talk with your vet.
What is a body condition score (BCS) for dogs?
A body condition score is a 1 to 9 rating of how lean or heavy a dog is. A score of 4 or 5 is ideal. Lower scores mean too thin and higher scores mean too heavy. You check three things: how the ribs feel, whether a waist shows from above, and whether the belly tucks up from the side.
What is the ideal weight for my dog’s breed?
Each breed has a typical adult range, and the dog breed weight chart on this page lists more than 50 of them. Your own dog can sit a little above or below that range and still be healthy. Body condition tells you more than the chart does.
How much should my puppy weigh?
It depends on the breed size and the age in months. A medium dog is about 46% of its adult weight at 4 months, while a giant breed is about 31%. The puppy growth table shows the usual share of adult weight by month. The calculator uses the same table.
When is a dog considered senior?
It depends on size. Large and giant breeds are often called senior from about 6 to 7 years. Small and toy breeds are often called senior from about 10 years. See the senior dog table for the ages the calculator uses.
What if my dog is a mixed breed?
Pick mixed breed and choose the size group you expect as an adult. The tool then uses that size range for context. If you are unsure, use the size of the biggest breed in the mix, or ask your vet for a size guess.
Does neutering change my dog’s ideal weight?
Not the ideal body shape, but it can change how easily a dog gains weight. Many neutered dogs need fewer calories than before. That is why the body condition score matters more than a fixed number on the scale. Check the score every month or so.
How fast should an overweight dog lose weight?
Slow and steady is safer. Vets often aim for about 1% to 2% of body weight per week. The weight loss pace section shows how that turns into weeks. Your vet should set the real plan, including food amounts.
Why does my dog look heavy but weigh the same as the chart says?
Frame, muscle and coat all change how a dog looks. A dog can sit inside the breed range and still carry extra fat, or sit above it and be lean and muscular. Feel the ribs and check the waist. Those checks are more reliable than a chart.
Is my information saved or shared?
No. All calculations run in your browser and nothing you enter is sent to a server. The tool remembers only your choice of kg or lbs on your own device. Read the Privacy Policy for details.