Calorie Calculator
Estimate daily calorie needs from your activity.
Maintenance calories
2,556 kcal/day
- Lose ~0.5 kg/week
- 2,056 kcal/day
- Mild loss ~0.25 kg/week
- 2,306 kcal/day
- Gain ~0.5 kg/week
- 3,056 kcal/day
- BMR (rest only)
- 1,649 kcal/day
How this is calculated
TDEE = BMR × activity multiplier
BMR = 1648.75 kcal/day (Mifflin-St Jeor)
× 1.55 (moderate (3–5 days/week)) = 2556 kcal/day
±500 kcal/day ≈ ±0.5 kg/week — an estimate, not a prescription.
Computed on your device — nothing is sent anywhere.
How it works
Estimate daily calorie needs from your activity. Runs 100% in your browser, so your files never leave your device. Free, fast, no signup.
Questions about calorie calculator
Yes — no watermark, no daily cap, no signup. Pro raises the file-size and batch limits, but the tool itself is not gated.
No. This tool runs entirely in your browser. Open your network inspector and watch while it works — there are no file uploads, because there is no upload endpoint.
Up to 10 files at 15 MB each. Everything runs in your browser, so the real ceiling is your device’s memory — the cap keeps a large file from exhausting the tab.