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SnapCalculations

Calorie Calculator

Find out how many calories your body burns each day and how much to eat to maintain, lose or gain weight.

Sex
years
Units
cm
kg

Maintenance calories

2,556

kcal per day (TDEE)

BMR (at rest)
1,649 kcal
Mild loss (~0.25 kg/wk)
2,306 kcal
Weight loss (~0.5 kg/wk)
2,056 kcal
Weight gain (~0.5 kg/wk)
3,056 kcal

Estimates for healthy adults. Talk to a doctor before major diet changes.

How it works

  • BMR (Mifflin–St Jeor): men = 10 × weight(kg) + 6.25 × height(cm) − 5 × age + 5; women = same − 161.
  • TDEE = BMR × activity factor (1.2 sedentary to 1.9 very active).
  • A daily deficit of about 500 kcal leads to roughly 0.5 kg (1 lb) of weight loss per week.

Frequently asked questions

What is the difference between BMR and TDEE?

BMR is the energy you burn at complete rest. TDEE adds everything you do in a day, so it is the number to eat at to maintain your weight.

How low should I go?

Avoid eating below your BMR for long periods without medical supervision. Slow, steady deficits are easier to sustain.

Results are estimates for general information and are not financial, medical or professional advice.