RPE Calculator

The Interactive RPE Chart

The standard RPE to Percentage translation matrix. Stop guessing your target weights and train with precision.

100% Evidence-BasedRTS Auto-RegulationClinical Accuracy

Last updated:

← Back to Calculator
Reps →
RPE ↓
12345678910
10.0100.0%95.5%92.2%89.2%86.3%83.7%81.1%78.6%76.2%73.9%
9.597.8%93.9%90.7%87.8%85.0%82.4%79.9%77.4%75.1%72.3%
9.095.5%92.2%89.2%86.3%83.7%81.1%78.6%76.2%73.9%70.7%
8.593.9%90.7%87.8%85.0%82.4%79.9%77.4%75.1%72.3%69.4%
8.092.2%89.2%86.3%83.7%81.1%78.6%76.2%73.9%70.7%68.0%
7.590.7%87.8%85.0%82.4%79.9%77.4%75.1%72.3%69.4%66.7%
7.089.2%86.3%83.7%81.1%78.6%76.2%73.9%70.7%68.0%65.3%
6.587.8%85.0%82.4%79.9%77.4%75.1%72.3%69.4%66.7%64.0%
6.086.3%83.7%81.1%78.6%76.2%73.9%70.7%68.0%65.3%62.6%

How to use the RPE Chart

Follow these simple steps to find your exact target weight percentage.

1

Step 1: Target Reps

Locate your target reps for the set on the top row of the chart. For example, if you are doing sets of 5, find the number 5.

2

Step 2: Target RPE

Find your assigned RPE (Rate of Perceived Exertion) on the left column. If your program says RPE 8, look down the left side.

3

Step 3: Find Percentage

Follow the row and column to their intersection. This is the exact percentage of your 1-Rep Max you should lift for that set.

The Science of RPE

The Rate of Perceived Exertion (RPE) scale, popularized in powerlifting by Mike Tuchscherer (Reactive Training Systems), assigns a numerical value to the difficulty of a set.

Instead of blindly following a static percentage that doesn't account for daily fatigue, stress, or recovery, RPE allows you to auto-regulate. A 5 rep set at RPE 8 should feel like you have exactly 2 reps left in the tank. The RPE chart translates this subjective feeling into an objective percentage of your 1RM, assuming average lifter efficiency.

Reps in Reserve (RIR) = 10 - RPE
Example
If your 1-Rep Max is 405 lbs, and your program calls for 5 reps at RPE 8. First, find 5 reps and RPE 8 on the chart. The intersection is 81%. 405 lbs × 0.81 = 328 lbs.

Frequently Asked Questions

RPE stands for Rate of Perceived Exertion. In strength training, it's a scale from 1 to 10 that measures how hard a set felt, with 10 being absolute maximum effort (no reps left in the tank) and lower numbers indicating more reps could have been performed.