Useful, not overwhelming

Understand your starting point.

Use these quick estimates to learn more about your body and daily energy needs. They are guides, not a diagnosis or personalised medical advice.

Calculator 01

BMI

BMI compares your height and weight to give a general screening result.

Your BMI number

Enter your details to see your standard category.

What this means: BMI is a screening measure only. It does not directly measure body fat or account for muscle mass.

Calculator 02

BMR

BMR estimates the energy your body uses to keep you alive while completely at rest.

Your estimated BMR

Enter your age, sex, weight and height to see an estimate.

What this means: This is an estimate of calories your body uses at rest — before everyday movement or exercise. It is not a daily calorie target.

Calculator 03

TDEE

TDEE starts with your BMR, then applies your typical activity level to estimate daily energy use.

Your estimated TDEE

Enter your age, sex, weight, height and activity level to see an estimate.

What this means: TDEE is an estimate of calories used per day based on your selected activity level. It is not automatically a recommended calorie target.

These results use standard estimating formulas. They do not account for every factor, including body composition, pregnancy, health conditions or medication. Speak to an appropriate qualified professional for health advice.

The next useful step

Numbers are information. A good plan is what you do with them.

Take the free fitness assessment