Pet Food Calculator — Formula
## 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.
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.
Exemplo Resolvido
A 40 lb moderately active dog eating $3/lb food.
- Weight in kg = 40 / 2.205 = 18.14 kg
- RER = 30 x 18.14 + 70 = 614 kcal
- Adjusted = 614 x 1.4 = 860 kcal
- Daily cups = 860 / 400 = 2.1 cups
- Monthly cost = 2.1 x 0.25 lb x 30 x $3 = $47.25