Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Fitness
One Rep Max Calculator
Estimate your one-rep maximum (1RM) — the maximum weight you can lift for a single repetition — from a submaximal set using Epley, Brzycki, Lander, or other established formulas. Use it to design strength-training programs without the injury risk of testing actual maxes.
Fill in the required fields to see your result.
Fitness
Running Pace Calculator
Calculate running pace from total time and distance, converted to seconds per kilometer or per mile depending on unit selection. Use it to track training run efficiency, plan race goal paces, and compare performance across different distances.
Fill in the required fields to see your result.
Key differences
| One Rep Max Calculator | Running Pace Calculator | |
|---|---|---|
| Category | Fitness | Fitness |
| Inputs required | 4 | 5 |
| Result | Estimated Weight (kg) | Pace (sec/unit) |
| What it does | Estimate your one-rep maximum (1RM) — the maximum weight you can lift for a single repetition — from a submaximal set using Epley, Brzycki, Lander, or other established formulas. Use it to design strength-training programs without the injury risk of testing actual maxes. | Calculate running pace from total time and distance, converted to seconds per kilometer or per mile depending on unit selection. Use it to track training run efficiency, plan race goal paces, and compare performance across different distances. |