Macro Calculator
Get protein, carbohydrate and fat grams 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
Macro Calculator at a glance
- Input
- Calories, and a split adding up to 100%
- Output
- protein, carbohydrate and fat grams
- Health notice
- Estimate, not medical advice
- Processing
- Runs locally in your browser
- Calories per gram
- 4 / 4 / 9 kcal per gram
- Price
- Free
- Account required
- No
How to use Macro Calculator
- 1
Enter your values
Enter calories and set a split totalling 100%.
- 2
Review the estimate
See daily grams for protein, carbohydrate and fat.
- 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 calories and set a split totalling 100%. See daily grams for protein, carbohydrate and fat. 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 calories and set a split totalling 100%. |
|---|---|
| Output | See daily grams for protein, carbohydrate and fat. |
| 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. |
| Calories per gram | Protein and carbohydrate at 4 kcal a gram, fat at 9. The three percentages have to add up to 100. |
| Price | Free |
| Account required | No |
Keep going with the same files
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