1RM Calculator
Estimate your one-rep max from any set using Epley, Brzycki, Wathan, and other proven formulas. Get training percentages instantly.
Estimate your 1RMLyfta Tools
Fitness tools for lifters
Free calculators to estimate your one-rep max, rank a lift against other lifters, and compare equivalent weights across exercises.
Strength Level Calculator
See whether your bench, squat, deadlift, or 100+ other lifts rank as beginner, intermediate, advanced, or elite for your age and bodyweight.
Check your levelExercise Comparison
Convert a known lift into an equivalent weight on another exercise. Compare bench vs squat, squat vs deadlift, and more.
Compare two liftsAI Workout Generator
Generate a workout routine from your equipment, goal, and training time. Useful when you want a session, not just a number.
Build a workoutHow to use these tools
Start with the 1RM calculator if you only know a multi-rep set. Then check that number in the strength level calculator, or convert it to another lift with exercise comparison. In the Lyfta app you can log the same lifts and track them over time.
Frequently asked questions
- What fitness tools does Lyfta offer?
- Lyfta has a free 1RM calculator, a strength level calculator for 100+ exercises, and an exercise comparison tool that estimates equivalent weights between lifts. All three are on lyfta.app/tools and work in the browser.
- How do I estimate my one-rep max?
- Use the Lyfta 1RM calculator. Enter the weight you lifted and how many reps you completed with good form. The calculator estimates your one-rep max using formulas such as Epley, Brzycki, and Wathan.
- How does the strength level calculator work?
- Pick an exercise, enter your one-rep max, age, bodyweight, and gender. Lyfta compares that lift with strength standards for lifters at a similar age and bodyweight and ranks you from beginner to elite.
- Can I compare two different exercises?
- Yes. The exercise comparison tool estimates how much you should lift on a second exercise based on a weight you already hit on the first. For example, it can estimate a squat from a known bench press.