Health & Fitness
Calorie Calculator
Free online calorie calculator — find your daily calorie needs for weight loss, maintenance, or gain based on your age, weight, height, and activity level.
Calculator
DAILY ENERGY
Set your profile
Estimate daily calorie needs from your age, body size, sex, and activity level.
YOUR ESTIMATE
HOW IT'S ESTIMATED
How This Calculator Works
This calculator uses the Mifflin-St Jeor equation to estimate basal metabolic rate (BMR), then applies an activity factor to estimate total daily energy expenditure (TDEE).
Men BMR = 10 × weight + 6.25 × height − 5 × age + 5
Women BMR = 10 × weight + 6.25 × height − 5 × age − 161
Calorie Targets
- Weight loss: about 500 calories below maintenance.
- Maintenance: around your estimated TDEE.
- Weight gain: about 500 calories above maintenance.
These are estimates. Individual needs vary with metabolism, body composition, and other factors.