Lift-specific tool
Deadlift 1RM calculator
Estimate a deadlift e1RM from recent work without turning one hard pull into an inflated training block. Deadlift estimates are especially sensitive to fatigue, straps, stance, and start position.
Best for
For lifters planning heavy pulls who need a cautious number before percentage or RPE-based deadlift work.
Estimate from a recent set
Lower-rep sets usually make better inputs.
Use the load you actually lifted with the technique you want to compare over time.
This public calculator accepts 1-12 reps and caps RPE-adjusted reps at 12.
Estimated result
Enter a recent set.
The output will show formula spread, RPE/RIR adjustment, and a conservative training max.
Deadlift context
Deadlift estimates should be treated carefully
Use the same deadlift style each time: conventional, sumo, straps, touch-and-go, and paused variations do not estimate the same thing.
Deadlift fatigue can linger and can make repeat attempts less predictable. Higher-rep deadlift estimates often need a larger conservative buffer.
Example: 180 kg x 4 at RPE 9 may produce a useful e1RM, but the training max should usually be lower than the calculated peak.
Use the next calculator
Formula and assumptions
- Uses the same Epley and Brzycki formulas as the main 1RM calculator.
- RPE adds estimated reps in reserve before calculating the e1RM.
- The output assumes the deadlift style and equipment match the set you intend to train.
Use it well
- Use a recent deadlift set with the same stance, straps policy, and start position.
- Be more conservative when the input comes from touch-and-go or higher-rep pulling.
- Use a training max before building heavy percentage work.
- Plan warm-ups with enough jumps to check speed without adding fatigue.
Keep it honest
Caveats
- Touch-and-go deadlifts can overstate a dead-stop estimate.
- Straps, hitching, bar type, and stance can change the meaning of the input.
- Heavy deadlift testing needs appropriate experience and setup.
References
Sources
- Main 1RM formula references
The deadlift variant uses the same visible formula assumptions and caveats as the main 1RM calculator.
- Resistance-training RPE scale
RPE in resistance training is commonly anchored to reps in reserve.
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