Deadlift 1RM Calculator
The deadlift is the ultimate test of total-body strength. Knowing your deadlift 1RM helps you program pulling volume, set realistic PR goals, and balance your training across the three powerlifts.
StrengthBase lets you enter a recent working set — conventional or sumo — and instantly see estimates from four validated formulas. The tool also generates an intensity table with plate-rounded weights so you can walk into the gym with a plan.
Advanced mode accounts for multiple sets and RPE, giving you a more nuanced estimate when you train with structured programming.
How to Use
- Pull a set of 3–8 reps at a challenging weight with consistent technique.
- Enter the weight, reps, and RPE into the StrengthBase calculator.
- Use the estimated 1RM and percentage table to program your next pulling session.
Frequently Asked Questions
- Does the formula differ for conventional vs. sumo?
- The math is the same. Just enter the weight and reps for whichever stance you use — the formulas are stance-agnostic.
- What is a strong deadlift 1RM?
- Intermediate lifters often target 2× body weight for men and 1.5× for women, but this depends on training age and weight class.
- Are high-rep deadlift estimates reliable?
- Estimates become less accurate above 10 reps because grip fatigue and cardiovascular demand introduce extra variables. Stick to sets of 3–8 for the best results.
- Should I include straps or a belt in my test set?
- Use whatever equipment you plan to use in training. If you pull with a belt, test with a belt so the estimate matches your programmed loads.