1RM Calculator
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.
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.
Showing 1–20 of 1,000 ranked alternatives.
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.
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.
JosmanTek SL
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.
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.
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.
Danny Li
Calculate plates for your lifts
Calculate barbell loads in kilograms or pounds with a plate . Adjust barbell weight, collars, and plate types. Reverse calculate by adding plates to reach a desired total. Syncs with fitness apps for progress tracking.
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.
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.
Runloop Ltd
Track workouts and log progress
Track workouts with detailed logging of exercises, sets, reps, and weights. Set rest timers, rep ranges, and intensity levels. Record RPE and estimated duration. Create routines using previous data or import plain text.
alonestandsmalcolm
Track 1RM progress with graphs
Track 1RM (maximum one-rep weight) to analyze fitness progress and view growth trends visually. Calculate training weights for 60%, 70%, 80% of 1RM. Manage 1RM records per exercise with history and graphs.
XD Software Solutions LLC
Calculate plates for your lifts
Calculate weights for desired lifts without manual math. Input total weight and bar weight to determine required plates. Reverse calculate bar weight based on selection. Track lifting progress and adjust weights accordingly.
Charles Vanderhoff
Calculate plates for your
Calculate weights with instant plate configurations. Customize equipment inventory in pounds or kilograms. Supports fractional and non-standard weight plates. Track heavy lifts like squats and deadlifts.
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.
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.
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