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Calorie calculator: daily energy needs

Estimate the calories your body uses each day.

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How to estimate your daily calories

  1. 1

    Enter your age, sex, height and weight.

  2. 2

    Choose the activity level that best matches a typical week.

  3. 3

    See an estimate of the energy your body uses each day, then talk to a health professional about what's right for you.

Frequently asked questions

How is this calculated?

Resting energy (BMR) uses the Mifflin–St Jeor equation, which is then multiplied by an activity factor from 1.2 (mostly sitting) to 1.9 (very physical job or training).

How accurate is it?

It's an average for people like you; individuals can differ by 10% or more. Health conditions, medication, pregnancy and body composition all change real needs.

Why doesn't it suggest a target for losing or gaining weight?

Safe goals depend on your health, history and circumstances. A doctor or registered dietitian can help you set one.

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