One-Rep Max Calculator (Lombardi Formula)
Estimate your one-rep max using the Lombardi formula (weight × reps^0.10). Includes a percentage-based training chart.
Estimated 1RM (Lombardi)
264.3 lbs
Weight Used
225 lbs
Reps Performed
5
Percentage Chart
95%: 251 lbs
90%: 238 lbs
85%: 225 lbs
80%: 211 lbs
75%: 198 lbs
70%: 185 lbs
65%: 172 lbs
60%: 159 lbs