

Best maximum repetition (1RM) calculator for any lift.
MRI Calculator
1RM maximum repetition
Calculate your maximum weight at one repetition.
Repetition Maximum 1RM: The maximum weight you can lift in a single repetition of a given exercise.
It is calculated by knowing the number of repetitions to do with a given weight.
This is the RM calculator I use for my Bilbo Method workouts.
RM Calculator
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Calculate your RM easily and accurately with our online 1RM calculator!
Do you want to know what your repetition maximum (RM) is in a given exercise?
Do you want to know what your repetition maximum (RM) is in a given exercise?
With this calculator, you can estimate your RM quickly and easily from the weight you lift and the number of repetitions you perform.
How to calculate MR?
Our calculator is based on a mathematical formula that relates the weight lifted, the number of repetitions and the RM.
Simply enter the weight you use in an exercise and the number of repetitions you can perform with that weight, and our calculator will give you an estimate of your RM.
Why is it useful to calculate the MR?
Knowing your MR allows you to:
- Plan your strength training more effectively.
- Set realistic and achievable objectives.
- Evaluate your progress over time.
- Adjust the intensity of your exercises to avoid injury.
Try it now!
Our calculator is free and easy to use.
Don’t wait any longer and discover your MR!
In this video I show you how I use this calculator in my workouts.
Try it now!
Our 1RM calculator is free and easy to use.
Don’t wait any longer and discover your MR!