FREE RESOURCE
REP & SET CALCULATOR
INSTRUCTIONS
This calculator helps estimate your 1-rep max (1RM) based on a recent training effort. Here’s how to get started:
Enter Your Data:
Plug in your recent PR set — for example, if you lifted 200 lbs for 8 reps at a 10/10 effort (meaning no reps left in the tank).
Provide the total number of reps performed and the weight lifted (in lbs or kg).
Get Your Results:
The calculator will estimate your 1RM and provide an overview of your potential lifting performance across different rep ranges.
For Best Accuracy:
Train Close to Failure: The closer your set was to failure (0 reps left), the more accurate the estimate will be.
Use Low-Rep Data for 1RM Estimation: PR sets of 3-5 reps tend to produce more reliable 1RM estimates than sets of 8-10 reps.
Goal-Specific Insights: If you’re focused on strength, prioritize lower rep PRs. For endurance-based goals, higher rep data can offer helpful insights.
⚡ Keep in Mind:
This is a general performance estimate and may not perfectly reflect your true 1RM, especially with individual variations.
Factors like fatigue, recovery, and day-to-day fluctuations can impact accuracy.
RPE (Rating of Perceived Exertion) and RIR (Reps in Reserve) guidance is also generalized, so always listen to your body when training.
Need Help Understanding RPE or RIR?
Check out my free resource here on using RPE and RIR in training!
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Hybrid training on your terms
Do you have the desire to get fit and build muscle? Do you want to do that while sticking to – or incorporating – running or cardio into your routine? At The Lyss Method, we know you’re tired of programs that force you to choose between fitness inside the gym and outside of it, so we’ve created hybrid programs that will help you reach your goals without having to make sacrifices.
