About FitnessTool Platform
FitnessTool is a science-first workout platform built for United States and international lifters. Our mission is to provide accurate, free, and accessible tools for strength calculation, workout programming, and progressive overload tracking.
Our Scientific Methodology
Our 1RM calculations use 5 peer-reviewed equations (Epley, Brzycki, Lander, Lombardi, Mayhew) to give athletes and coaches reliable submaximal training percentages without risking central nervous system fatigue or injury.