Daily Calorie Calculator

Estimate calories to maintain, lose or gain weight.

Instant · runs in your browser
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About the Daily Calorie Calculator

This calculator estimates how many calories you should eat each day to maintain your weight, lose weight gradually or gain weight. It uses your age, sex, height, weight and activity level.

What you get

  • Maintenance calories
  • Mild and moderate weight-loss targets
  • Weight-gain target

Good to know

A loss of about 0.5 kg per week is generally considered safe and sustainable. Calorie needs are estimates; listen to your body and consult a doctor or dietitian if you have a health condition.

How to use Daily Calorie Calculator

  1. Enter your values. Units and defaults are shown beside each field.
  2. Press Calculate (results also update as you type once calculated).
  3. Read the result and the step-by-step breakdown with the formula used.
  4. Copy the result or reset to start again.

Frequently asked questions

How accurate is this calculator?

Calculations use the standard formulas shown on the page, computed in full precision and rounded only for display. The result is only as accurate as the inputs and assumptions listed.

Is this medical advice?

No. Health calculators give general estimates for information only and are not a diagnosis. Speak to a qualified health professional about your situation.

Is it free?

Yes. All tools are free to use without an account.