Calculate your max for any lift with this 1RM calculator. Get strategic about your fitness goals!
Find your one-rep max (1RM) for any exercise you perform. This represents the maximum weight you can lift for a single repetition in that particular exercise. Using a one-rep max calculator is useful for estimating appropriate training loads for exercises like squats, bench presses, deadlifts, and more. Accurately assessing the appropriate weight to lift can help keep training challenging while supporting long-term strength development.
After entering your lift totals, a table displaying ranges will show where you stand in relation to your maximum lifts. Remember, it is important to calculate your 1RM for each specific exercise separately. Assuming that your maximum for bench press directly applies to your back squat may not yield accurate results.
Remember, the values are only estimates. Use sound judgment, keep technique consistent, and avoid testing maximal loads when fatigue, pain, or form breakdown are present.
HOW DO I TEST MY ONE-REP MAX?
Fitness coaches often use estimated one-rep maxes to organize training percentages, progression targets, and loading ranges. Here are some important caveats to remember when using them:
- The lower the number of reps you enter, the more accurate your estimated 1RM will generally be. In other words, a three-rep max estimate will usually be more reliable than a twelve-rep max estimate.
- Stop your set once your form is at risk of breaking down or your range of motion is decreasing. No estimated 1RM is worth getting injured and having to stop training.
- Remember that each exercise has its own 1RM. Do not use your back squat 1RM to calculate your front squat, bench press, deadlift, or any other lift.
WHAT PERCENTAGE OF MY ONE-REP MAX SHOULD I LIFT?
Determining the right training percentage depends on your goals, training history, recovery, exercise selection, and the phase of your program. Heavy strength work, hypertrophy-focused training, technique work, and recovery-based sessions may all use different loading ranges.
If you want a more complete explanation of how training, progression, recovery, and structure fit together, read:
The Foundation of Long-Term Strength, Muscle, and Performance
If you are looking for structured coaching built around progressive training, accountability, and long-term results, learn more here: