Maintenance Calorie Calculator

Reviewed by the CalculatorHub team, edited by James Graham. Method from USDA DRI Calculator. Last verified 2026-06-23.

The Maintenance Calorie Calculator computes maintenance calorie from the relation maintenance calories = (10 x weight + 6.25 x height - 5 x age + sex constant) x activity factor (Mifflin-St Jeor TDEE). It takes 5 inputs (weight in kg, height in cm, age in years, sex constant (5 for male, -161 for female), activity factor (1.2 sedentary to 1.9 very active)) and returns the maintenance calorie. Because this is a pure mathematical or physical formula rather than a jurisdiction-specific rule, the result never changes over time: the same inputs always produce the same answer, so you can rely on it whether you are checking homework, sizing a design, or sanity-checking another tool. Enter your values in the fields below and the result updates instantly; you can also share a permalink that pre-fills the exact calculation, which is useful for teaching, reports, or collaboration. For example, with weight = 80 kg, height = 180 cm, age = 30 years, sex constant (5 for male, -161 for female) = 5, activity factor (1.2 sedentary to 1.9 very active) = 1.55, the maintenance calorie works out to 2759, and the worked example further down the page shows every step so you can follow the arithmetic and reproduce it by hand. The method is the standard form documented by USDA DRI Calculator, and the figure above each result carries the date it was last verified. This tool is general information and is not a substitute for professional engineering, medical, financial, or scientific advice; always check critical results against the primary source and your own judgement.