Health
Calorie Calculator
Estimate your daily maintenance calories (TDEE) based on your age, height, weight and activity level.
Your details
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How maintenance calories are calculated
This tool first estimates your BMR, then multiplies it by an activity factor to estimate your Total Daily Energy Expenditure (TDEE) — the calories you'd need to maintain your current weight.
Frequently asked questions
How do I lose or gain weight using this number?
A deficit of roughly 15-20% below maintenance supports gradual weight loss, while a surplus of 10-20% supports weight gain. This tool shows both as a starting reference.