Dog Calorie Calculator
Daily calorie range
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Enter your dog’s weight below.
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This table covers healthy adult dogs in ideal body condition, from 2 kg (4.4 lb) to 49 kg (107.8 lb). Outside that, or for a puppy, a pregnant dog or a dog on a weight-loss plan, ask your vet.
That is the size to shop — the matching products are listed below.
How to use this number
The figure above is a starting point for an average dog of that weight, not a target you must hit. Here is how to put it to work:
- Start near the middle of the range. It is a range because dogs of the same weight genuinely differ.
- Feed that amount for two to three weeks and change nothing else.
- Then check your dog’s body condition — the ribs and waist, not the number on the scale. That is the section right below.
- Adjust in small steps. If your dog is putting on fat, feed nearer the bottom of the range; if it is losing condition, nearer the top.
- Re-check every few weeks. Needs change with age, season, activity, and neutering.
Weigh the food rather than guessing with a scoop where you can — a scoop of kibble varies a lot between brands and even between bags of the same brand.
Check the body condition, not just the weight
Two dogs can weigh the same and need different amounts of food, because one is carrying fat and the other is not. That is why every credible feeding guide asks you to judge body condition rather than weight alone.
Run your hands along your dog’s ribcage. You are aiming for the same feel as the back of your own hand: you can feel the ribs under a thin covering, without having to press. From above, there should be a visible waist behind the ribs; from the side, the belly should tuck up.
- Ribs hard to find under padding → your dog is carrying extra, so feed nearer the bottom of the range and ask your vet.
- Ribs, spine, and hip bones prominent → your dog is under-condition, so feed nearer the top of the range and ask your vet.
- Ribs easy to feel but not visible, waist visible → ideal. The calorie range is designed for a dog in this state.
WSAVA publishes a free 9-point body condition score chart for dogs that shows each point as a silhouette and a hands-on description. It is the clearest way to judge this at home, and it is worth printing.
The WSAVA calorie chart
This is the published chart, in full. The figures are WSAVA’s; nothing here has been recalculated by us.
| Weight | Weight | Kilocalories per day |
|---|---|---|
| 2 kg | 4.4 lb | 140–177 kcal |
| 3 kg | 6.6 lb | 190–239 kcal |
| 4 kg | 8.8 lb | 240–297 kcal |
| 5 kg | 11.0 lb | 280–351 kcal |
| 6 kg | 13.2 lb | 320–403 kcal |
| 7 kg | 15.4 lb | 360–452 kcal |
| 8 kg | 17.6 lb | 400–499 kcal |
| 9 kg | 19.8 lb | 440–546 kcal |
| 10 kg | 22.0 lb | 470–590 kcal |
| 11 kg | 24.2 lb | 510–634 kcal |
| 12 kg | 26.4 lb | 540–677 kcal |
| 13 kg | 28.6 lb | 580–719 kcal |
| 14 kg | 30.8 lb | 610–760 kcal |
| 15 kg | 33.0 lb | 640–800 kcal |
| 16 kg | 35.2 lb | 670–840 kcal |
| 17 kg | 37.4 lb | 700–879 kcal |
| 18 kg | 39.6 lb | 730–918 kcal |
| 19 kg | 41.8 lb | 760–956 kcal |
| 20 kg | 44.0 lb | 790–993 kcal |
| 21 kg | 46.2 lb | 820–1030 kcal |
| 22 kg | 48.4 lb | 850–1067 kcal |
| 23 kg | 50.6 lb | 880–1103 kcal |
| 24 kg | 52.8 lb | 910–1139 kcal |
| 25 kg | 55.0 lb | 940–1174 kcal |
| 26 kg | 57.2 lb | 970–1209 kcal |
| 27 kg | 59.4 lb | 1000–1244 kcal |
| 28 kg | 61.6 lb | 1020–1278 kcal |
| 29 kg | 63.8 lb | 1050–1312 kcal |
| 30 kg | 66.0 lb | 1080–1346 kcal |
| 31 kg | 68.2 lb | 1100–1397 kcal |
| 32 kg | 70.4 lb | 1130–1413 kcal |
| 33 kg | 72.6 lb | 1160–1446 kcal |
| 34 kg | 74.8 lb | 1180–1478 kcal |
| 35 kg | 77.0 lb | 1210–1511 kcal |
| 36 kg | 79.2 lb | 1240–1543 kcal |
| 37 kg | 81.4 lb | 1260–1575 kcal |
| 38 kg | 83.6 lb | 1290–1607 kcal |
| 39 kg | 85.8 lb | 1310–1639 kcal |
| 40 kg | 88.0 lb | 1340–1670 kcal |
| 41 kg | 90.2 lb | 1360–1701 kcal |
| 42 kg | 92.4 lb | 1390–1732 kcal |
| 43 kg | 94.6 lb | 1410–1763 kcal |
| 44 kg | 96.8 lb | 1440–1794 kcal |
| 45 kg | 99.0 lb | 1460–1824 kcal |
| 46 kg | 101.2 lb | 1480–1855 kcal |
| 47 kg | 103.4 lb | 1510–1885 kcal |
| 48 kg | 105.6 lb | 1530–1915 kcal |
| 49 kg | 107.8 lb | 1560–1945 kcal |
If your dog’s weight falls between two rows, we interpolate linearly between them. That interpolation is our arithmetic, not WSAVA’s — the published points are the ones to trust.
Turning calories into cups
A calorie figure is not much use at feeding time unless you know what is in a cup of your food. That number is printed on the bag, under Calorie Content, usually as something like “3,600 kcal/kg” and “360 kcal/cup”.
Enter the kcal per cup box in the calculator and it will show how many cups your dog’s range works out to. If your bag only lists kcal/kg, your brand’s website usually gives the cup figure too — or ask them.
This is deliberately not an automatic conversion. Cup weights vary between foods, so a fixed “one cup = 8 oz” rule would be wrong for some bags and would quietly give you the wrong amount.
Why it is a range, not one number
Plenty of calculators give you a single figure, like “742 kcal”. That precision is invented. Here is what is actually going on.
Energy needs scale with body weight raised to a power, not with weight itself — which is why a 40 kg dog does not need twice the calories of a 20 kg dog. Every published method then multiplies that by a factor for activity and life stage, and that factor is where the uncertainty lives: a couch dog and a working dog of the same weight are not close.
Rather than pick one factor and present a single number, the WSAVA chart publishes the span. The lower end suits a less active dog and the upper end a more active one. That is more honest than a decimal point, and it is what we reproduce.
What we found when we checked the arithmetic
We did not take the chart’s footnote on trust. The chart cites two factors, 130 kcal for an active adult and 95 kcal for an inactive adult, each multiplied by body weight in kilograms raised to the power 0.75. We tested those figures against the chart’s own numbers, and they do not match.
Read the chart’s values backwards and they come out at roughly 105 and 84 × kg0.75 — not 130 and 95. The gap is between 11% and 19%, which is large enough to matter over a week of feeding.
We are not able to tell you which is right, and we are not going to guess. It does not change what we show you, because we print the table, not the formula — the numbers you see above are the ones WSAVA published. But if you see another calculator quoting 130 or 95 for your dog and arriving at a higher figure, this is why.
What this table is not for
The title of the chart is specific, and the limits are real:
- Not for puppies. Growing dogs need considerably more energy per kilogram, and the ratio changes week by week. Use a growth-specific guide and your vet.
- Not for weight loss. If your dog needs to lose weight, the target is a veterinary calculation, not the maintenance figure reduced by a guess.
- Not for pregnancy or nursing. Requirements rise sharply and change across the pregnancy.
- Not for dogs with a medical condition. Kidney, heart, diabetes, and other conditions all change what and how much a dog should eat.
- Not for dogs outside 2–49 kg. The chart stops there.
One further limit worth stating plainly: the chart is for dogs already in ideal body condition. If your dog is not, its true requirement is not the number above.
What to buy
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We do not show prices, and we do not recommend one food over another. Calorie content differs between foods, so the figure printed on your bag is the one that matters.
Questions we get a lot
How many calories should my dog eat a day?
For a healthy adult dog in ideal body condition, the WSAVA chart gives a range by weight — for example 790–993 kcal a day at 20 kg (44 lb). Use it as a starting point, then adjust to keep your dog at an ideal body condition.
Why is the answer a range and not one number?
Because activity and metabolism differ between dogs of the same weight. The published chart gives a span for each weight rather than a single figure, and tells you to adjust it so your dog stays at an ideal, trim body condition.
Does this work for puppies?
No. This tool covers healthy adult dogs only. Puppies, pregnant dogs and dogs losing weight all need different figures, and those should come from your vet.
Where does the calorie chart come from?
The published chart “Calorie Ranges for an Average Healthy Adult Dog in Ideal Body Condition”, from the World Small Animal Veterinary Association (WSAVA), updated July 2020. The weight figures are theirs; interpolating between published points is our arithmetic.
Should I feed exactly this many calories?
No. The chart itself says the recommendations are for guidance only and that dogs are individuals. Start in the range, then let your dog’s body condition tell you whether to move up or down.
My dog needs to lose weight. Can I use this?
Not for the target figure. This table is for adult dogs already in ideal body condition at maintenance. Weight loss is a veterinary question, and cutting calories the wrong way can be harmful.
Another calculator gives me a higher number. Why?
It may be using the factors cited in the chart’s footnote — 130 and 95 × kg0.75 — rather than the chart’s own values, which work out nearer 105 and 84. We checked, they disagree, and we chose to show you the published table. See the section above.
How we work this out
- The calorie figures are not ours. They are reproduced from the WSAVA published chart, which is named and linked on this page and archived by us with the date it was read.
- Interpolation is ours. If your dog’s weight falls between two published rows, we draw a straight line between them. Nothing else is calculated.
- We did not use a formula. The factors in the chart’s footnote could have produced a number for any weight, and it would have looked more precise. We do not use them, because those factors disagree with the chart’s own values by 11–19%, and we would rather print the published table than pick a side.
- The disagreement is published, not hidden. It is described in the section above, including the test we ran.
- The scope is enforced, not just mentioned. The tool is limited to healthy adult dogs, and it says so where you use it.
What this tool will not do: it will not tell you what to feed, how to treat a condition, or how much a puppy, a pregnant dog or an overweight dog should eat. It also cannot judge your dog’s body condition for you — only you can put your hands on your dog.
Related tools
- Dog Feeding Calculator
The sister page: turns the amount on your bag into cups per meal. - Dog Bed Size Chart
Body length and sleeping position to bed length. - Dog Crate Sizes Calculator
Weight or measurement in, crate length out. - Dog Crate Size Chart by Breed
53 breeds, with the weight behind each figure.
Last updated: 2026-10-19.