Calculateur de charge maximale (1RM)

Calculer Calcul en cours…

Réinitialiser Imprimer

Lien de partage

Introduction

One-Rep Max Calculator — Estimate 1RM from a training set via Epley and Brzycki. Enter Weight lifted, Reps completed to get an instant, accurate result.

Formule

Epley: weight × (1 + reps/30). Brzycki: weight × 36 / (37 − reps).

Étape par étape

1. Enter the Weight lifted.
2. Enter the Reps completed.
3. Click Calculate to see your result instantly.

Exemple concret

Example: With Weight lifted = 100, Reps completed = 5, the One-Rep Max Calculator gives Epley: 116.6667, Brzycki: 112.5.

Questions Fréquentes

Why two different formulas?

Epley and Brzycki are both widely used estimation formulas that can give slightly different results, especially at higher rep counts — showing both gives a useful range.

How accurate is an estimated 1RM?

It's most accurate for sets of around 2-10 reps; estimates get less reliable at very high rep counts.

What inputs does the One-Rep Max Calculator need?

You'll need to provide: Weight lifted, Reps completed. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.

How accurate is the One-Rep Max Calculator?

The One-Rep Max Calculator applies the formula exactly as calculated — Epley: weight × (1 + reps/30). Brzycki: weight × 36 / (37 − reps). — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.

Is this a medical diagnosis?

No. The One-Rep Max Calculator provides an estimate based on standard formulas and general population data, not a medical diagnosis or personalized clinical advice. Individual results can vary — consult a doctor or other qualified healthcare provider for medical concerns.

Is the One-Rep Max Calculator free to use?

Yes, the One-Rep Max Calculator is completely free, requires no signup, and runs instantly in your browser.

À propos de Calculateur de charge maximale (1RM)

The One-Rep Max Calculator uses a real, verifiable formula — Epley: weight × (1 + reps/30). Brzycki: weight × 36 / (37 − reps). — so results are accurate every time, not an approximation.