Calorie Calculator (BMR & TDEE)
Calorie calculator: daily calories to maintain your weight (TDEE) and basal metabolic rate with the Mifflin–St Jeor equation.
BMR = 10m + 6.25h − 5a + s
How to use this calculator
- Type your input in the box.
- The result updates as you type.
- Use “Copy result” or “Copy link” to share it.
Basal metabolic rate is the energy your body uses at rest. The Mifflin–St Jeor equation estimates it from sex, age, weight and height; multiplying by an activity factor gives total daily energy expenditure (TDEE).
The result is an estimate; individual needs can differ by several hundred calories a day.
For healthy adults; it is not a diagnosis. Talk to a doctor or dietitian about your personal situation.
Frequently asked questions
What is the Mifflin–St Jeor equation?
BMR = 10 × weight (kg) + 6.25 × height (cm) − 5 × age + 5 for men, or − 161 for women.
What is the difference between BMR and TDEE?
BMR is energy at complete rest; TDEE adds daily activity and exercise.