BMR & TDEE Calculator
Get BMR and TDEE estimates side by side as you type.
FREE - NO SIGN-UP - RUNS ON YOUR DEVICE
Your entries stay on your device
- Liveupdates as you type
- 0data uploaded
- 1clear result
- Freeno account needed
What you can count on
- 0data sent
- Calculations run in this browser
- Entries stay on this device
- Liveresult
- Figures update as values change
- Copy the summary when ready
- Clearmethod
- Inputs and formula basis shown
- Estimate, not medical advice
BMR & TDEE Calculator at a glance
- Input
- Age, sex, height, weight and activity
- Output
- BMR and TDEE estimates side by side
- Health notice
- Estimate, not medical advice
- Processing
- Runs locally in your browser
- Formula used
- Mifflin-St Jeor (+5 / −161)
- Activity multipliers
- 1.2 → 1.9, default 1.375
- Price
- Free
- Account required
- No
How to use BMR & TDEE Calculator
- 1
Enter your values
Enter age, sex, height, weight and activity.
- 2
Review the estimate
Compare basal energy and total daily energy estimates in one result.
- 3
Copy the result
Use Copy result to save the displayed summary for your own notes.
Frequently asked questions
Is this result medical advice?
No. It is a general estimate based on the values and formula shown. A qualified health professional can interpret measurements for your circumstances.
Are my entries uploaded?
No. The calculation runs in your current browser tab, and the tool does not send the values to a server.
Why might my result differ elsewhere?
Methods, rounding and reference assumptions vary. Check the selected units and inputs, then treat the result as an estimate rather than a diagnosis.
Understanding the estimate
Enter age, sex, height, weight and activity. Compare basal energy and total daily energy estimates in one result. This calculator provides an estimate, not medical advice.
- The result follows the method named in the tool and rounds figures for easy reading.
- Personal circumstances vary, so use the figure as a general reference and not a diagnosis.
Full specification
| Input | Enter age, sex, height, weight and activity. |
|---|---|
| Output | Compare basal energy and total daily energy estimates in one result. |
| Health notice | This result is an estimate for general information and is not medical advice. |
| Processing | All calculations run locally in the current browser tab. |
| Formula used | Mifflin-St Jeor, with plus 5 for men and minus 161 for women. Every other row on this page is built from that figure. |
| Activity multipliers | 1.2 sedentary, 1.375 lightly active, 1.55 moderately, 1.725 very, 1.9 extra. The box starts on 1.375, not sedentary. |
| Price | Free |
| Account required | No |
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