Deadlift 1RM Calculator
Estimate your deadlift one rep max using 6 proven strength training formulas. Enter your deadlift weight and how many reps you completed.
How to Calculate Your Deadlift 1RM
Your deadlift one rep max (1RM) is the maximum weight you can pull from the floor for a single repetition. It's often the heaviest weight most lifters can move, and it's a primary measure of total body strength. Testing your true deadlift max is taxing on your nervous system and grip, so estimating from submaximal sets is the smarter approach for most training cycles.
If you can deadlift 180 kg for 5 reps, proven mathematical formulas can predict your single-rep max. This calculator uses six formulas (Epley, Brzycki, Lombardi, Mayhew, O'Conner, and Wathan) and averages them for the most accurate estimate.
The percentage table shows ideal training loads for your deadlift programming. Many programs use 70-85% of 1RM for volume work and 85-95% for heavy singles and doubles. Use your estimated 1RM to hit the right intensity.
Deadlift style (conventional vs sumo), grip type (double overhand, mixed, straps), and equipment (belt, chalk) all affect your max. Use this calculator as a starting point and adjust based on your training response.