One-rep max calculator

Enter a set you actually did. Epley turns it into an estimated 1RM (e1RM) and the table shows what that max means at every rep count.

Weight by rep count

At an e1RM of 101.33 kg. Values are rounded to 0.5.

The formula

e1RM = weight × (1 + reps / 30). A single is taken at face value. Epley is one of several estimates and drifts past about 10 reps; the app uses it because it is simple, monotonic and good enough to detect a PR the moment a set is logged.

In Beatweek every logged set is checked for four PRs: e1RM, max weight, reps at a weight and session volume. The Progress screen splits the e1RM trend into the three rep buckets, 1–5, 6–10 and 11+, so a 5-rep PR and a 12-rep PR are not confused for each other.

By lift

The same calculator with a weight × reps table and percentages of 1RM for each lift, linked to its strength standards:

• Back squatone-rep max
• Front squatone-rep max
• Bench pressone-rep max
• Incline bench pressone-rep max
• Close-grip bench pressone-rep max
• Dumbbell bench pressone-rep max
• Deadliftone-rep max
• Sumo deadliftone-rep max
• Romanian deadliftone-rep max
• Hip thrustone-rep max
• Overhead pressone-rep max
• Push pressone-rep max
• Dumbbell shoulder pressone-rep max
• Barbell rowone-rep max
• Pendlay rowone-rep max
• Dumbbell rowone-rep max
• Pull-upone-rep max
• Chin-upone-rep max
• Dipone-rep max
• Barbell curlone-rep max
• Dumbbell curlone-rep max
• Leg pressone-rep max
• Lat pulldownone-rep max
• Hack squatone-rep max

Standards by lift: back squat, front squat, bench press, incline bench press, close-grip bench press, dumbbell bench press, deadlift, sumo deadlift, romanian deadlift, hip thrust, overhead press, push press, dumbbell shoulder press, barbell row, pendlay row, dumbbell row, pull-up, chin-up, dip, barbell curl, dumbbell curl, leg press, lat pulldown, hack squat.