Daily calorie needs depend on your body size, age, sex, and activity level. This calculator estimates resting metabolism and total daily energy needs.
How to use this calculator
- Enter your weight and height.
- Enter your age.
- Select your sex.
- Select your typical activity level.
- Review your basal metabolic rate and estimated daily calories.
Formula
Basal metabolic rate uses the Mifflin-St Jeor equation. Daily calories equal BMR multiplied by an activity factor based on exercise frequency and intensity.
Example
A 30-year-old male at 70 kg and 175 cm with moderate activity has a BMR of about 1,678 calories and estimated daily needs of about 2,600 calories.
Frequently asked questions
What is basal metabolic rate?
BMR is the calories your body burns at rest to maintain basic functions like breathing and circulation.
Is this a weight loss plan?
This is an estimate of maintenance calories. For weight loss or gain, adjust intake based on guidance from a healthcare professional.