5 reps → 1RM
212lb
average estimate
8 reps → 1RM
232lb
10 reps → 1RM
247lb
3 reps → 1RM
200lb
Show the math
Epley (5 reps) = 185 lb × (1 + 5 ÷ 30) = 216 lb
Brzycki (5 reps) = 185 lb × 36 ÷ (37 − 5) = 208 lb
If you lifted 185 lb for…
| Reps | Epley | Brzycki | Average 1RM |
|---|---|---|---|
| 1 rep | 185 | 185 | 185 |
| 2 reps | 197 | 190 | 194 |
| 3 reps | 204 | 196 | 200 |
| 4 reps | 210 | 202 | 206 |
| 5 reps | 216 | 208 | 212 |
| 6 reps | 222 | 215 | 218 |
| 7 reps | 228 | 222 | 225 |
| 8 reps | 234 | 230 | 232 |
| 9 reps | 240 | 238 | 239 |
| 10 reps | 247 | 247 | 247 |
| 11 reps | 253 | 256 | 254 |
| 12 reps | 259 | 266 | 263 |
If 185 lb is your one rep max
| % of 1RM | Load (lb) | About this many reps |
|---|---|---|
| 95% | 176 | 2 |
| 90% | 166 | 4 |
| 85% | 157 | 6 |
| 80% | 148 | 8 |
| 75% | 139 | 10 |
| 70% | 130 | 12 |
| 65% | 120 | 15 |
| 60% | 111 | 20 |
How to use it
- Enter your numbers. Switch between US and metric units at any time.
- Results update as you type, and the formula is shown so you can check it.
- Copy the link, save the plan on this device, or print it for your next appointment.
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These are estimates, not a diagnosis. A clinician can account for your health history and medicines.
Other weights
Common questions
What is my 1RM if I lift 185 lb for 5 reps?
About 212 lb, averaging the Epley and Brzycki formulas.
What is my 1RM if I lift 185 lb for 10 reps?
About 247 lb. Estimates get less precise above 10 reps.