Scientific Dog Calorie Calculator
Compute your dog's daily energy requirement using the metabolic Resting Energy Requirement (RER) equation.
Caloric Guidance for Buddy
900
kcal/day1,250
kcal/day1,750
kcal/dayResting Energy Requirement (RER): 550 kcal/day.
Import Buddy into the main Pet Longevity Dashboard to see biological age curves, weight ranges compared to breed ideals, and expected remaining years.
Understanding Daily Calories
Dogs require food to support two categories of metabolic output: basic life processes at rest and physical movement during active hours.
The **Resting Energy Requirement (RER)** is the base energy required to sustain breathing, organ function, and thermoregulation while completely at rest. Because cell volume scales metabolic processes, it is calculated using the exponential metabolic mass formula:
RER (kcal/day) = 70 * (Weight in kg)^0.75
To calculate **Maintenance Energy Requirement (MER)**, we multiply RER by an activity coefficient representing lifestyle. Sedentary or senior pets require only 1.2 times RER, regular companion dogs require 1.6 times, and high-intensity working dogs can require up to 2 to 3 times RER to prevent caloric deficiencies.