PeakLoads
1RM, RIR and warm up calculators for powerlifters
What it does
Free powerlifting calculator. Estimate your 1RM, plan warm-up sets, generate percentage charts, and translate RIR/RPE for optimal strength training.
Does the same job
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StrengthPeakingJun 2026 · strengthpeaking.com · ▲2Free calculators for strength training and powerlifting
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I made a weightlifting tracker app specifically for coders. In weightlifting, progressive overload is one of the most important parts of gaining muscle. You should constantly increase weights, reps, use different set schemes, and that will make your muscles grow. There're many weightlifting programs, using various overloading schemes - linear increasing of weights, some periodic ladder-up increase, switching to different set schemes in case of failures, etc. You can implement all of that in Liftosaur. It works this way: each exercise may define a bunch of variables, that could be changed…
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