Fitness Calculators
All programs1RM Estimator
Calculate your one-rep max from reps.
Unit:
Estimated 1RM
300 lbs
Epley 300 lbs
Brzycki 300 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% | 300 lbs | 1 | 2×45 + 1×25 + 1×10 + 1×2.5 |
| 95% | 285 lbs | 2 | 2×45 + 1×25 + 1×5 |
| 90% | 270 lbs | 4 | 2×45 + 2×10 + 1×2.5 |
| 85% | 255 lbs | 6 | 2×45 + 1×10 + 1×5 |
| 80% | 240 lbs | 8 | 2×45 + 1×5 + 1×2.5 |
| 75% | 225 lbs | 10 | 2×45 |
| 70% | 210 lbs | 12 | 1×45 + 1×25 + 1×10 + 1×2.5 |
| 65% | 195 lbs | 15 | 1×45 + 1×25 + 1×5 |
| 60% | 180 lbs | 20 | 1×45 + 2×10 + 1×2.5 |
Rounded for standard plates (5 lb steps)
Put this max to work
Pick a program and we'll turn your 300 lbs into working weights for every session.
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