RPE Lab

RPE Lab is a simple, fast 1RM and RPE calculator built for strength training. Use it to: • Estimate your 1RM from weight and reps • Choose your preferred formula • Plan training loads using RPE-based targets • Save time between sets with quick, on-the-fly calculations • Register your own personal record on the three main lifts • Watch charts of your personal records Designed to be lightweight and distraction-free: • Works offline • No accounts, no ads • No analytics and no tracking Disclaimer: RPE Lab is for informational purposes only. Always train within your limits and use proper technique.