Free tool

Daily calorie calculator

Estimate how many calories you need each day to lose, maintain or gain weight, based on your age, sex, height, weight and activity.
Sex
Activity
Maintenance calories
1,953kcal/day

To lose about 0.5 kg a week: 1,453 kcal

To gain slowly: 2,253 kcal

Resting needs (BMR): 1,420 kcal.

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How it works

We estimate your resting energy use with the Mifflin–St Jeor equation, then multiply it by your activity level to get the calories you burn in a typical day (your maintenance).

Losing or gaining

A gap of about 500 kcal a day below maintenance leads to slow, steady loss of around half a kilo a week. To gain, a small surplus of about 300 kcal a day is gentler on your body than a big one.

This is general nutrition information, not medical advice. Numbers are estimates that vary by recipe and portion. If you are managing a health condition, talk to your doctor or a dietitian before changing your diet.

Questions people ask

How many calories should I eat to lose weight?

Roughly 500 kcal a day below your maintenance number. We don't suggest going below about 1,200 kcal (women) or 1,500 kcal (men) without medical support.

How accurate is a calorie calculator?

It's a starting estimate. Track your weight for 2 to 3 weeks and adjust by 100 to 200 kcal if it's moving faster or slower than you want.

What is TDEE?

Total daily energy expenditure: the calories you burn in a day, including rest, digestion and movement. It's the same as your maintenance calories.

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