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Calciyums

Calorie Calculator

Work out your basal metabolic rate (BMR) and your total daily calorie need (TDEE) from your activity level.

Daily Life

Calculation

The formula's constants differ by biological sex.

lb
in
years

Calculated in your browser; what you enter is never sent to a server.

Result

Your daily calorie need (TDEE)

2,514 kcal

Basal metabolic rate (BMR)
1,622 kcal
To lose weight
2,014 kcal
To gain weight
3,014 kcal

How is it calculated?

Choose your sex, weight, height, age and activity level. The tool first works out the calories you burn at rest (BMR, the Mifflin-St Jeor formula), then multiplies it by your activity level to get your total daily calorie need (TDEE).

Formula

Men: BMR = 10×Weight + 6.25×Height − 5×Age + 5
Women: BMR = 10×Weight + 6.25×Height − 5×Age − 161
TDEE = BMR × Activity multiplier

Example

Sex: Male · Units: Pounds and inches · Weight: 155 · Height: 67 · Age: 30 · Activity level: Moderately active (3–5 days/week) → Your daily calorie need (TDEE): 2,514 kcal

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Frequently asked questions

How many calories should I eat to lose weight?

A common rule is to eat about 500 calories less than your daily need (TDEE), which is roughly half a kilogram a week. That figure is shown in the result.

What is the difference between BMR and TDEE?

BMR is what your body burns completely at rest (breathing, your heartbeat and so on). TDEE adds your daily activity on top, for your real total calorie need.

Is this medical advice?

No. The result is a general estimate from a widely used formula; talk to a dietitian or doctor about your own nutrition decisions.

How do I choose my activity level?

Think about how often you exercise: a few light sessions a week is “lightly active”, regular intense training is “very active”. If you're unsure, picking the lower level is the safer guess.