Calorie Calculator
Get daily calorie target for a selected goal 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
Calorie Calculator at a glance
- Input
- Age, sex, size, activity and your goal
- Output
- Calories to lose, hold or gain weight
- Health notice
- Estimate, not medical advice
- Processing
- Runs locally in your browser
- Activity multipliers
- 1.2 → 1.9, default 1.375
- Goal adjustment
- −500 / +300, floor 1200 kcal
- Price
- Free
- Account required
- No
How to use Calorie Calculator
- 1
Enter your values
Enter age, sex, height, weight, activity and goal.
- 2
Review the estimate
See Mifflin-St Jeor calorie estimates for losing, maintaining or gaining weight.
- 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, activity and goal. See Mifflin-St Jeor calorie estimates for losing, maintaining or gaining weight. 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, activity and goal. |
|---|---|
| Output | See Mifflin-St Jeor calorie estimates for losing, maintaining or gaining weight. |
| 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. |
| 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. |
| Goal adjustment | Lose takes 500 off maintenance, gain adds 300. The target never goes below 1200 kcal, even when the deficit would take it there. |
| Price | Free |
| Account required | No |
Keep going with the same files
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