The One Rep Max vs MaxRep Workout Calculator

The One Rep Max calculator uses a little previous knowledge to give you an approximation of what amount of weight you could lift one time. Use this value to push yourself while remaining safe, and chart your progress along the way.

MaxRep Workout Calculator takes the guesswork out of warming up for barbell lifts. Tell it your target weight and how much time you have — MaxRep builds a complete, personalized warmup plan with exact plate loads for every set. WORKOUT CALCULATOR Enter your 1-rep max target and your available warmup time. MaxRep generates a step-by-step plan scaled to your lifter type, adjusting rest periods and rep tempo so you arrive at your working weight fully prepared — not fatigued. PLATE LOADING See exactly which plates go on the bar for every set. Configure the plates you actually have at your gym and MaxRep only suggests what's available to you. PERSONAL RECORD TRACKING Log your max rep after every session. MaxRep tracks your personal bests across 63 movements and surfaces your PR alongside each warmup so you always know what you're chasing. 63 BUILT-IN MOVEMENTS Compound and accessory movements included out of the box — squat, bench, deadlift, overhead press, Romanian deadlift, barbell row, and dozens more. BUILT FOR HOW YOU TRAIN Choose from three lifter profiles — Athletic/CrossFit, Regular Gym-Goer, or Powerlifter — each with rest periods and rep tempos tuned to that training style. WORKS IN LBS OR KG Full imperial and metric support. Switch units at any time in Settings; all weights and plate labels update instantly. NO ACCOUNT. NO SUBSCRIPTION. NO INTERNET REQUIRED. All data stays on your device. MaxRep works entirely offline and never requires you to create an account. REMOVE ADS A one-time in-app purchase removes all banner ads permanently for the lifetime of your use of the app.