One-Rep Max (1RM) Calculator
Estimate your one-rep max for any lift using the Epley formula based on the weight and reps you can perform.
Estimated 1RM (Epley)
263 lbs
Estimated 1RM (Brzycki)
253 lbs
Weight Used
225 lbs
Percentage Chart
95%: 249 lbs
90%: 236 lbs
85%: 223 lbs
80%: 210 lbs
75%: 197 lbs
70%: 184 lbs
65%: 171 lbs
60%: 158 lbs