1RM and track percentages
1RM using standard formulas based on lifted weight and repetitions. Input exercise details to determine maximum strength. Track progress over time to assess training effectiveness.
Showing 1–20 of 1,000 ranked alternatives.
Charles Vanderhoff
Calculate for any lift
Calculate one-rep max for bench press, deadlift, and squat using 7 scientific formulas. Input reps and weight to estimate max lift. Adjust estimates with Rate of Perceived Exertion. Track progress over time. Export results for review.
Aryaman Sharda
Calculate weight and one-rep maxes
Calculate weight for desired lifts using supported bar types. Input rep counts to determine one-rep max. Track progress and adjust training accordingly.
Yuri Koshiishi
Calculate 1RM with RPE
Calculate 1RM using RPE or rep maxes for 2-12 repetitions. Track 1RM history by exercise. Select customized workouts. Access a dark theme for better visibility.
Dynamo Group LLC
Calculate 1RM and track progress
Calculate one-rep max for strength training exercises. Track progress over time for different lifts. Input weight and reps to estimate 1RM. Save and view historical max values for multiple exercises.
Pieter Roelandt
Calculate 1RM, plan plates, generate warmups
Calculate 1RM using multiple formulas. Auto-calculate plate weights in kg or lb. Generate warmup sets based on target loads. View secondary set projections for common rep ranges. Switch between kg and lb with saved preferences.
David Bai
Calculate 1RM from weight and reps
Calculate 1-rep max based on entered weight and reps. Estimate strength and compare rep schemes. Input workout details to determine maximum lift capacity.
Gravitus, Inc.
Track workouts, log progress, plan routines
Track workouts with detailed logging and progress monitoring. Access advanced routines and a large exercise database. Connect with a community for support. Lift without ads. Sync training data across devices. Set and adjust fitness goals.
Charles Vanderhoff
Track lifts, calculate weights, log workouts
Track strength training progress with detailed workout logs sortable by date and exercise. Calculate precise weights for each set using one rep max input. Generate complete strength programs and training cycles based on Wendler 5/3/1 methodology.
Zen Labs LLC (CA)
Start strength training with 5x5 workouts
Build strength with a beginner-friendly program focused on compound movements. Track progress with guided workouts. Access free introductory weeks. Set goals and receive structured training plans. Sync with fitness trackers for progress monitoring.
James T. Constant
Calculate 1RM and track progress
Calculate 1 Rep Max using popular formulas by selecting a lift type, entering weight, and repetitions. Log results to track progress over time. Premium version allows custom lifts and more than 10 repetitions.
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