Pet Food Calculator
Calculate daily feeding amounts and monthly food costs for dogs or cats based on weight and activity level.
Daily Food Amount
2.1 cups
Daily Food Amount vs Pet Weight
Pet Food Calculation
Feeding amounts depend on your pet's weight, age, and activity level. The resting energy requirement (RER) formula provides a starting point.
Formula
RER (kcal/day) = 30 x Weight(kg) + 70
Daily Calories = RER x Activity Multiplier
Activity multipliers: Inactive/senior (1.1x), Moderate (1.4x), Active (1.7x). One cup of dry dog food averages about 400 calories. Always adjust based on body condition.
Example Calculation
A 40 lb moderately active dog eating $3/lb food.
- 01Weight in kg = 40 / 2.205 = 18.14 kg
- 02RER = 30 x 18.14 + 70 = 614 kcal
- 03Adjusted = 614 x 1.4 = 860 kcal
- 04Daily cups = 860 / 400 = 2.1 cups
- 05Monthly cost = 2.1 x 0.25 lb x 30 x $3 = $47.25
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