Calorie Calculator
Estimate daily calorie needs based on age, sex, weight, height, and activity level.
Results
BMR1649 kcal/day
Maintenance2556 kcal/day
Mild Weight Loss2256 kcal/day
Weight Gain2856 kcal/day
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How this calorie calculator works
This calculator estimates your basal metabolic rate and daily calorie needs using common formulas based on sex, age, weight, height, and activity level.
Formula
Calories needed = BMR × activity factor
Example
A moderately active adult needs more daily calories than a sedentary adult of the same height and weight because activity increases total energy use.
FAQs
Can I use stone and pounds?
Yes. This version supports both kilograms and stone with pounds.
Can I use feet and inches for height?
Yes. This version supports both centimetres and feet with inches.
What is BMR?
BMR stands for Basal Metabolic Rate. It estimates how many calories your body needs at rest.