100 kg for 9 reps
Estimated one-rep max: about 127 kg (280 lb). The five formulas span 123–130 kg, so treat it as a range rather than a number.
Estimated one-rep max
127 kg
Mean of five published formulas. Range 123–130 kg.
| Formula | 1RM | Source |
|---|---|---|
| Epley | 130.0 | Epley, 1985 |
| Brzycki | 128.6 | Brzycki, 1993 |
| Lombardi | 124.6 | Lombardi, 1989 |
| O'Conner | 122.5 | O'Conner et al., 1989 |
| Mayhew | 128.6 | Mayhew et al., 1992 |
SOURCE·Published formulae — Epley, Brzycki, Lombardi; IPF GL and DOTS coefficients·REVIEWED JUL 2026
So is 127 kg a good bench press?
If that lift is a bench press, 127 kg (280 lb) puts a man at 82.5–87.5 kg bodyweight at the 52nd percentile of 29,914 judged competition benches — advanced. For a squat or a deadlift the same weight ranks lower, because those lifts are heavier for everyone.
Bench standards
Full curve for this class
Open →Squat standards
Same class, different lift
Open →Deadlift standards
Same class, different lift
Open →SOURCE·Judged competition results (OpenPowerlifting)·29,914 judged bench presses, men 82.5–87.5 kg·REVIEWED JUL 2026
Percentages of that max
| % of 1RM | Weight |
|---|---|
| 95% | 120.5 |
| 90% | 114.2 |
| 85% | 107.8 |
| 80% | 101.5 |
| 75% | 95.1 |
| 70% | 88.8 |
| 65% | 82.5 |
| 60% | 76.1 |
| 55% | 69.8 |
| 50% | 63.4 |
A sensible warm-up to it
| Step | Weight | Reps |
|---|---|---|
| 40% | 50.7 | 5 |
| 55% | 69.8 | 5 |
| 70% | 88.8 | 3 |
| 80% | 101.5 | 2 |
| 90% | 114.2 | 1 |
| Working | 126.9 | 1 |
A conventional ramp, not the ramp. Add or remove steps to taste — the point is to arrive warm and not tired.
Same weight, other rep counts
The whole rep range for 100 kg, so the estimate for any set you actually did is one click away.
100 kg × 2
1RM 107 kg
100 kg × 3
1RM 110 kg
100 kg × 4
1RM 113 kg
100 kg × 5
1RM 116 kg
100 kg × 6
1RM 118 kg
100 kg × 7
1RM 121 kg
100 kg × 8
1RM 124 kg
100 kg × 10
1RM 130 kg
100 kg × 11
1RM 133 kg
100 kg × 12
1RM 136 kg
SOURCE·Published formulae — Epley, Brzycki, Lombardi; IPF GL and DOTS coefficients·REVIEWED JUL 2026
100 kg × 9 — common questions
What is my one-rep max if I lift 100 kg for 9 reps?
About 127 kg (280 lb), taken as the mean of the Epley, Brzycki, Lombardi, O'Conner and Mayhew formulas. Individually they give 123 to 130 kg, so the range is the honest answer.
Is 127 kg a good bench press?
If the lift is a bench press, 127 kg (280 lb) puts a man at 82.5–87.5 kg bodyweight at the 52nd percentile of 29,914 judged competition benches — advanced. That population all competed, so it is stronger than a gym average.
What should I warm up with?
The ramp below runs 51 kg × 5, 70 kg × 5, 89 kg × 3, 101 kg × 2, 114 kg × 1, then the working single at 127 kg. It is a conventional ladder rather than a rule; the test is that the last warm-up still moves fast.