Max Lift

Convert lb/kg and estimate 1RM with proven lifting formulas. Simple & accurate.

Max Lift is a practical toolkit for weightlifters and strength athletes who train in pounds, kilograms, or both.

Convert weights instantly Switch between lb and kg with live conversion — no mental math at the rack or on the platform.

Estimate your 1RM accurately Enter the weight you lifted and the reps you completed to calculate your one-rep max. Results work in lb or kg, so you can train and program in whichever unit you prefer.

Choose from trusted formulas Max Lift supports several widely used 1RM estimation formulas, including Brzycki, Epley, Lander, Lombardi, Mayhew, O’Conner, and Wathan — pick the one that fits your training style.

Built for lifters Clean, focused design with the tools you need and nothing you don’t. Whether you’re warming up, working sets, or planning your next cycle, Max Lift keeps the numbers straight.

Download Max Lift and spend less time calculating — more time lifting.