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All programs1RM Estimator
Calculate your one-rep max from reps.
Unit:
Estimated 1RM
258 lbs
Epley 263 lbs
Brzycki 253 lbs
Headline 1RM is the consensus average of Epley and Brzycki formulas (up to 10 reps), matching your workout progress estimates.
Weight:
Reps:
| % 1RM | Weight | Est. Reps | Plates / side |
|---|---|---|---|
| 100% | 260 lbs | 1 | 2×45 + 1×10 + 1×5 + 1×2.5 |
| 95% | 245 lbs | 2 | 2×45 + 1×10 |
| 90% | 230 lbs | 4 | 2×45 + 1×2.5 |
| 85% | 220 lbs | 6 | 1×45 + 1×25 + 1×10 + 1×5 + 1×2.5 |
| 80% | 205 lbs | 8 | 1×45 + 1×25 + 1×10 |
| 75% | 195 lbs | 10 | 1×45 + 1×25 + 1×5 |
| 70% | 180 lbs | 12 | 1×45 + 2×10 + 1×2.5 |
| 65% | 170 lbs | 15 | 1×45 + 1×10 + 1×5 + 1×2.5 |
| 60% | 155 lbs | 20 | 1×45 + 1×10 |
Rounded for standard plates (5 lb steps)
Put this max to work
Pick a program and we'll turn your 258 lbs into working weights for every session.
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