Tools
Free lifting tools that get you from target weight to loaded bar.
Start with the free barbell calculator, then use RackMath to save lifts, run workouts, track PRs, and personalize training.
Barbell Calculator
Enter your target weight and instantly see which plates to load on each side. Free calculator for lb, kg, common bars, and standard plate sizes.
Open tool Free warmup calculatorWarmup Set Calculator
Plan warmup sets and jumps before your working weight with RackMath.
Open tool Free strength calculatorOne Rep Max Calculator
Estimate your one rep max from weight and reps, then track PRs in RackMath.
Open tool Common plate setupsCommon Barbell Weights
See common barbell weights and the plates that make 95, 135, 185, 225, 315, and 405 lb.
Open tool Free unit converterPounds to Kilograms Plate Converter
Convert barbell loads between pounds and kilograms and see practical plate-loading options.
Open tool Free RPE calculatorRPE Calculator
Estimate load targets from RPE and reps in reserve, then log the set in RackMath.
Open tool Free volume calculatorTraining Volume Calculator
Calculate lifting volume from sets, reps, and weight, then track weekly training in RackMath.
Open tool Free attempt plannerPowerlifting Attempt Calculator
Plan powerlifting attempts with practical jumps and plate-loading guidance.
Open tool Workout importerWorkout Plan Importer
Import a workout plan into RackMath from text, screenshots, PDFs, or coach programming.
Open tool