Calorie Calculator
Estimate daily calorie needs with Mifflin-St Jeor BMR and activity multipliers. Everything runs locally in your browser after the page loads.
Runs entirely in your browser. Your data never leaves this device.
- Runs in your browser
- No signup required
- Copy or download results
- Privacy-first MVP
- Mobile friendly
How it works
- Adjust the controls or paste your input.
- Preview results instantly in the browser.
- Copy or download the output — nothing is uploaded.
Key features
- Runs in your browser
- No signup required
- Copy or download results
- Privacy-first MVP
- Mobile friendly
FAQ
Is this private?
Yes — processing runs in your browser; we do not upload your inputs.
Do I need an account?
No — free to use without signup.
Does it work offline?
After the page loads, most tools work without further network calls.
Mobile friendly?
Yes — layouts adapt to smaller screens.
How accurate is TDEE?
Mifflin-St Jeor is an estimate. Individual needs vary — consult a clinician for medical advice.
Keep building
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