Calculators
Calculators for various fitness metrics.
This page requires JavaScript ES6. Provided since Windows 7, Ubuntu 16.04, or macOS 10.10. Older
operating systems can use our CLI, available with
pip3 install nutra
n calc -h
Note that this page does not use cookies, network requests, or save your information. All
calculations happen within your web browser. If you close or refresh this page, your progress
will be lost and you will need to start again.
Enjoy the calculators. Let us know of any mistakes, suggestions, or requests.
One-rep max
| # reps |
Epley |
Brzycki |
dos Remedios |
|---|
| 1 | 0 | 0 | 0 |
| 2 | 0 | 0 | 0 |
| 3 | 0 | 0 | 0 |
| 5 | 0 | 0 | 0 |
| 6 | 0 | 0 | 0 |
| 8 | 0 | 0 | 0 |
| 10 | 0 | 0 | 0 |
| 12 | 0 | 0 | 0 |
| 15 | 0 | 0 | 0 |
| 20 | 0 | 0 | 0 |
Sources
Calorie expenditure (BMR)
Sources
Body fat
| Navy |
3 Site |
7 Site |
|---|
| NaN | NaN | NaN |
Sources
Lean body limits (young men)
| Equation |
Condition |
Weight |
|---|
| Berkhan | | Berkhan equation failed! |
| Helms | | Helms equation failed! |
| Casey | | Casey equation failed! |
Casey Butt
| Measurement |
Max value (inches) |
|---|
| chest |
NaN |
| arm |
NaN |
| forearm |
NaN |
| neck |
NaN |
| thigh |
NaN |
| calf |
NaN |
Sources