CB
Health tool
Calorie Calculator
Get a practical daily calorie estimate using a common maintenance formula.
Instant useNo sign up, quick result.
Health focusedBuilt for quick body and calorie estimates.
Related next stepsJump to nearby health tools after.
Use the calorie calculator
Estimate daily calories using age, sex, height, weight and activity.
Result: waiting for input
Enter your values to see the result.
Formula
BMR = 10×weight + 6.25×height − 5×age + sex constant, then multiply by activity.
Example
More activity raises estimated maintenance calories.
Frequently asked questions
Why is sex entered as a number?
This simplified version uses +5 for male and −161 for female in the formula.
Is this a medical recommendation?
No. It is a planning estimate only.
Explore related tools
Use the related tools below to compare scenarios, check supporting numbers or solve nearby tasks faster.