Free tool · dogs & cats

How many calories does my pet need?

Get a daily calorie target using the vet-standard RER/MER formula — plus a safe treat budget so snacks don't tip the scale.

Estimate based on RER = 70 × (body weight in kg)0.75, multiplied by a standard activity/life-stage factor (MER). Every pet is different — breed, metabolism and health all matter. Use this as a starting point and confirm the target with your veterinarian, especially for weight-loss plans.

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