Free online strength calculators

Automatically estimate your one rep max (1RM) on squat, bench, deadlift and any other strength exercise.  Provides raw scores from seven scientifically validated formula along with a collective average.

Going for a new PR? or just trying to find the ideal weights to prime your body for some big working sets? This calculator will help you find the ideal warm up weight and rep progressions.

Create your own load-velocity profile from velocity based training data. A great way to estimate 1RM, track progress, and generally see how well you are training.

Convert a single set of weight-RPE data into a complete RPE-load-reps chart to calibrate your training on any lift. Includes a 1RM estimation from RPE and options for including bar speed.

Find the last rep velocity that matches with each RPE value on your lifts for calibrating your VBT and RPE training systems. A great way to combine both subjective and objective training data.