HEALTH & FITNESS
Calorie Calculator
Estimate daily calories to maintain, lose or gain weight.
100% free
No sign-up
Private — runs in your browser
Instant results
KEY TAKEAWAYS
- Estimate daily calories to maintain, lose or gain weight.
- Free to use — no sign-up, no account and no usage limits.
- Runs entirely in your browser, so the numbers you enter stay private.
- Works on desktop and mobile with instant, accurate results.
Last updated: June 2026
About the Calorie Calculator
Based on your stats and activity level we estimate your maintenance calories (TDEE) and targets for mild or faster weight loss and gain.
Frequently asked questions
How many calories to lose weight?
A deficit of ~500 kcal/day is roughly 0.5 kg (1 lb) per week. The tool shows mild and standard deficit/surplus targets.
Free online tool from ConvertFleet. Calculations run entirely in your browser — nothing you type is sent anywhere. Results are estimates for general guidance only.