Calculate Your Calories
Enter your details and activity level. Expand Advanced Settings for formula and result controls.
BMR, TDEE & Daily Calories
BMR is an estimate of the energy your body needs at rest for essential functions. TDEE is an estimate of total daily energy expenditure after accounting for activity. A calorie target for weight change is then estimated by applying a chosen daily adjustment.
These numbers are estimates, not guarantees. Your real energy needs can differ because of body composition, activity, sleep, health conditions, medications and other factors.
How This Calorie Calculator Works
Mifflin-St Jeor
Men: BMR = 10W + 6.25H โ 5A + 5
Women: BMR = 10W + 6.25H โ 5A โ 161
Revised Harris-Benedict
Men: BMR = 13.397W + 4.799H โ 5.677A + 88.362
Women: BMR = 9.247W + 3.098H โ 4.330A + 447.593
Katch-McArdle
BMR = 370 + 21.6 ร lean body mass (kg)
Lean body mass is estimated as body weight ร (1 โ body-fat fraction).
TDEE
TDEE = BMR ร Activity Factor
How to Use the Calculator
Choose Metric or US units.
Enter age, sex, height and weight.
Select the activity level that best represents your typical routine.
Optionally select a BMR formula and enter body fat for Katch-McArdle.
Review BMR, TDEE and the goal calorie estimate.
Frequently Asked Questions
What is a calorie?
A food Calorie is a unit of energy used to describe the energy supplied by food and beverages.
What is BMR?
BMR means Basal Metabolic Rate. It estimates energy expenditure at rest.
What is TDEE?
TDEE means Total Daily Energy Expenditure. This tool estimates it from BMR multiplied by an activity factor.
Which BMR formula should I use?
Mifflin-St Jeor is a widely used general option. Katch-McArdle uses lean body mass and therefore requires a body-fat estimate.
Are the calorie results exact?
No. They are estimates based on mathematical equations and assumed activity levels. Actual needs vary.
Health & Fitness Disclaimer
This calculator is provided for general educational and informational purposes only. It is not medical advice and is not intended to diagnose, treat, cure or prevent any disease or medical condition.
Calorie requirements vary between individuals. Do not use the result as the sole basis for a restrictive diet, rapid weight-loss plan, treatment decision or other medical decision. People who are pregnant or breastfeeding, under 18, have an eating disorder, have a medical condition, or take medicines that affect weight or metabolism should seek advice from a qualified healthcare professional or registered dietitian.
If you experience unexplained weight change or have concerns about nutrition or health, consult an appropriate healthcare professional.