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Calorie Calculator

Free calorie calculator. Estimate your daily calorie needs (TDEE) from age, sex, height, weight and activity level using the Mifflin-St Jeor formula.

Maintenance calories2,556 kcal/day
Mild weight loss (−0.25 kg/wk)2,306 kcal/day
Mild weight gain (+0.25 kg/wk)2,806 kcal/day

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Estimate how many calories you burn per day (your TDEE) using the Mifflin-St Jeor equation, based on your age, sex, height, weight and activity level — plus targets for gentle weight loss or gain.

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How It Works

1

Enter your values

Fill in the fields above.

2

See the result

The answer updates instantly as you type.

3

Adjust & compare

Tweak any value to compare scenarios.

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Frequently Asked Questions

What is TDEE?+

Total Daily Energy Expenditure — the calories you burn per day including activity. Eat around this to maintain weight, below it to lose, above it to gain.

Which formula is used?+

The Mifflin-St Jeor equation, widely regarded as one of the most accurate for estimating basal metabolic rate.