Tap to start →
Photo: Austin Ban / Unsplash
1 / 6
You don't need to max out to know your max: a hard set of 5 predicts it within a few percent for most lifters.
2 / 6
Enter the weight you lifted.
3 / 6
Enter how many clean reps you completed (1 to 12).
4 / 6
Read your estimated 1RM and a load chart from 60% to 100%.
5 / 6
Epley: weight × (1 + reps ÷ 30) Brzycki: weight × 36 ÷ (37 − reps) Lombardi: weight × reps^0.10 (shown for comparison) The headline number…
6 / 6
Estimates are most accurate from sets of 10 reps or fewer, taken close to failure with good form.
Estimate your one rep max from any set of 1 to 12 reps using the Epley and Brzycki formulas, with a percentage chart for planning your training loads.
Tap below for the full page. Not medical advice; talk to your clinician about your care.