# Calorie Calculator

How many calories you burn in a day, and how many to eat to lose weight.

URL: https://shortformkit.com/calorie-calculator/
Updated: 2026-10-13

The basal metabolic rate is what your body burns at rest. Multiplied by your activity level it gives your total daily energy expenditure. Eating about 500 kcal below that loses roughly 0.5 kg a week.

**Formula:** BMR (Mifflin-St Jeor) = 10·kg + 6.25·cm − 5·age + 5 (men) or − 161 (women)

Results are estimates for general information, not medical or financial advice.

## How it works

1. **Enter your values** The result updates as you type.
2. **Switch units if needed** Metric or US units, where it applies.
3. **Read the result** Nothing is stored or sent anywhere.

## FAQ

**Is it free?**
Yes. No account, no limits.

**Is my data stored?**
No. The calculation happens in your browser and nothing is sent to a server.


Source: Shortform Kit (https://shortformkit.com/calorie-calculator/). Free, no login.