TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) using the Mifflin-St Jeor formula. Find your calorie target for weight loss, maintenance, or muscle gain.
Your TDEE
2,755
calories / day to maintain your weight
BMR: 1,778 kcal
Calorie Targets by Goal
Lose 1 kg/week
~1,100 kcal deficit
1,655 kcal
Lose 0.5 kg/week
~550 kcal deficit
2,205 kcal
Maintain weight
Your TDEE
2,755 kcal
Gain 0.5 kg/week
~550 kcal surplus
3,305 kcal
Gain 1 kg/week
~1,100 kcal surplus
3,855 kcal
Formula: Mifflin-St Jeor. Results are estimates — individual metabolism varies.
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is TDEE Calculator really free?
Yes. TDEE Calculator is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does TDEE Calculator upload my data?
No. TDEE Calculator runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and TDEE Calculator is ready to use on desktop or mobile.
Does TDEE Calculator work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.
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