Calorie Calculator
Estimate your daily calorie needs based on your age, gender, weight, height, and activity level using the Mifflin-St Jeor equation.
How to Use
- 1Enter your age, sex, height, and weight.
- 2Select your activity level from sedentary to very active.
- 3View your estimated daily calorie needs for maintenance, loss, and gain.
- 4Adjust activity level or body metrics to see how calorie needs change.
Frequently Asked Questions
How accurate is this calorie calculator?
The Mifflin-St Jeor equation is considered one of the most accurate formulas for estimating BMR for most adults. However, individual metabolism varies, so treat the result as a starting estimate and adjust based on your actual results.
How many calories should I eat to lose weight?
A common guideline is a deficit of 500 calories per day to lose about one pound per week. The calculator shows a suggested deficit target, but consult a healthcare provider for personalized advice.
What does activity level mean?
Activity level multiplies your BMR to account for daily movement. Sedentary means little or no exercise, lightly active is 1-3 days per week, moderately active is 3-5 days, very active is 6-7 days, and extra active includes physical jobs or intense training.