One Rep Max Calculator
Calculate your one-repetition maximum (1RM) using Brzycki and Epley formulas. Get training weight percentages.
How to Use the One Rep Max Calculator
- Enter your personal measurements (weight, height, age, etc.).
- Select any relevant options such as gender or activity level.
- Click Calculate or view the instant result.
- Review your result and the interpretation or category it falls into.
Quick Reference
| From | To |
|---|---|
| Height (adult M) | 170–180 cm |
| Height (adult F) | 160–170 cm |
| Weight (adult M) | 65–85 kg |
| Weight (adult F) | 55–70 kg |
| Resting heart rate | 60–100 bpm |
| Normal BP | 120/80 mmHg |
Use Cases
- •Monitoring personal health metrics as part of a wellness routine.
- •Setting evidence-based goals for diet, exercise, or weight management.
- •Preparing for a medical appointment with baseline body measurements.
- •Tracking changes in body composition over time.
Formula
Brzycki: 1RM = weight / (1.0278 − 0.0278 × reps). Epley: 1RM = weight × (1 + reps/30).
Frequently Asked Questions
How to use?
Enter the data and click the calculate button.
Calculation accuracy?
Calculations are performed with high precision.
Is it free?
Yes, all calculators are completely free.