Dog Weight Loss Calculator (Canada)
Estimate daily calorie needs, safe weight loss timelines, and portion adjustments for your dog based on breed and activity level.
Canine Weight Management & Portion Control
Canine obesity is a leading health issue that reduces your pet's life expectancy and increases their risk of arthritis, diabetes, and cardiovascular diseases. Managing your dog's weight is crucial for their longevity.
A safe weekly weight loss rate for dogs is 1% to 2% of their starting body weight. Lowering weight too quickly can lead to hepatic lipidosis and nutritional deficiencies. Adjusting daily calories and feeding measurements is the primary way to manage weight.
This calculator estimates your dog's daily calorie requirements based on their weight and activity level, providing feeding portion guidance to help them return to a healthy weight range.
Frequently Asked Questions
Q: How fast should a dog lose weight?
A safe and healthy rate is 1% to 2% of their starting weight per week. Faster weight loss can be dangerous for their liver.
Q: How do I know if my dog is overweight?
You should be able to feel your dog's ribs easily without a thick layer of fat, and they should have a visible waistline when viewed from above.
Medically reviewed by Dr. Rekha Kumar, M.D., M.S. — Lead Medical Reviewer · Last reviewed: September 2026 · Updated: 2026-09-15
Evidence & references
This tool is for informational purposes only and is not a substitute for professional medical advice.
Frequently asked questions
Is this calculator free to use?
Yes. Every calculator on Weight Loss Percentage is free, with no sign-up or account required.
How accurate is the result?
Results depend on the accuracy of what you enter and the published formulas the tool uses, which follow standard guidance from national health authorities. Track the trend over weeks rather than relying on a single reading.
How often should I check it?
Check whenever your weight, activity or goals change — for most people once a week is enough to see a reliable trend.
Who reviews the content on this site?
All medical and nutrition content is written and reviewed by Dr. Rekha Kumar, M.D., M.S., our lead medical reviewer, and cites guidance from U.S. federal health sources such as the CDC and NIH.