Biology

Dog Food Calculator

Estimate your dog's daily calorie needs.

Dog weight

Activity / life stage

Calculated Output

Daily calories (kcal) 1,059.23

Resting need (RER) (kcal) 662.02

Formula: RER = 70 × weight^0.75 ; daily = RER × factor

Step-by-Step Breakdown

1. Values used:

2. Dog weight = 20

3. Activity / life stage = 1.6

5. Daily calories = 1,059.23kcal

6. Resting need (RER) = 662.02kcal

Did this calculator solve your problem today?

The math behind it

Resting Energy Requirement = 70 × weight(kg)^0.75; multiply by an activity/life-stage factor.

20 kg active adult → RER 662 × 1.6 ≈ 1,059 kcal.

How much food is that?

Divide by the food's kcal-per-cup (on the label) to get cups per day.