Free Lifting Calculators

Quick, no-sign-up tools for the gym. All of these are built into the Ironside app too.

One-Rep Max (1RM) Calculator

Estimate your 1RM from any weight and rep count using the Epley and Brzycki formulas.

See exactly which plates to load per side for any target weight, in kg or lb.

Total your volume load (weight × reps × sets) for a session.