Bench Press Max Calculator
Use this bench press max calculator to estimate one repetition maximum from a set. Enter weight lifted and repetitions completed and review an estimated one repetition maximum.
Estimated 1-rep max
—
Brzycki estimate —
85% for strength work —
70% for volume —
Estimates are most reliable at 10 reps or fewer. Warm up fully and use a spotter when testing.
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How it works
Epley: 1RM = w × (1 + reps/30); Brzycki: 1RM = w × 36/(37−reps)How to use the Bench Press Max Calculator
Start by entering weight lifted and repetitions completed. Keep the units consistent and check that each value belongs to the same question.
The result gives an estimated one repetition maximum. The estimate depends on form, range of motion and the equation used. Use it as a guide and check any instructions, rules or professional advice that apply.
Frequently Asked Questions
What does this bench press max calculator calculate?
It gives an estimated one repetition maximum. The estimate depends on form, range of motion and the equation used.
What information should I enter?
Enter weight lifted and repetitions completed. Use the same units throughout so the result is easier to understand.
Should I attempt the predicted maximum?
No. Treat it as a training estimate and use safe supervision for heavy lifting.