Pets & Animals

Pet calorie calculator

Daily calories for a dog or cat from weight and activity.

  • Instant
  • Free
  • Private (processed locally)
  • No sign-up

ℹ️ RER = 70 × weight^0.75; daily requirement = RER × activity factor. Indicative estimate: adjust with your vet based on body condition. 100% local.

Estimate the ration

Pick the species, enter the weight and the situation: the tool gives the daily requirement and the resting energy.

Example (neutered 10 kg dog)

InputValue
RER≈ 394 kcal
Factor1.6
Daily requirement≈ 630 kcal

Indicative; confirm with your vet. 100% local.

Frequently asked questions

What are RER and DER?

RER = resting energy = 70 × weight^0.75. DER = daily requirement = RER × activity factor.

Which factors?

E.g. neutered dog 1.6; neutered cat 1.2; growing ~2.5–3.0; weight loss ~0.8–1.0.

Is it medical advice?

No: it is an estimate. Adjust the ration with your vet based on body condition.