One-Rep Max Calculator
Estimate your one-rep max and training percentages for common lifts.
This one's on the roadmap
We haven't built the One-Rep Max Calculator widget yet — it's queued up. Want a nudge when it ships?
Frequently asked questions
- How is one-rep max estimated?
- From the weight and reps of a recent set, using a standard formula (like Epley or Brzycki), rather than requiring you to actually attempt a maximal lift.
- What will the training percentages be for?
- Common programming targets like 65%, 75%, and 85% of your estimated max, useful for planning warm-up sets and working sets.
- When is it launching?
- No fixed date yet. Use the notify-me link below and we'll let you know.