RPE (Rate of Perceived Exertion)
A scale measuring how hard an exercise feels, typically from 1-10.
Updated
Rate of Perceived Exertion is a subjective measure of exercise intensity on a 1-10 scale. RPE 10 means maximum effort (failure), while RPE 7 means you could do 3 more reps. This autoregulation method helps adjust training based on daily readiness. When you feel strong, you can push harder; when fatigued, you can back off. It accounts for daily variations in strength. Cardio research often uses the original Borg scale, which runs from 6 to 20; lifters use the 1-10 version, where RPE 8 equals two reps in reserve.
What RPE means in the gym
RPE stands for rate of perceived exertion, a number for how hard a set was. In a gym it almost always means the 1 to 10 lifting scale, where each number is tied to how many more reps you could have done, so a programme that says RPE 8 is asking for a set that stops with about two good reps left. That link to reps in reserve is what makes the lifting version useful: it turns a vague feeling into something you can check against your own performance.
The lifting scale, point by point
RPE 10 is a true maximum: no more reps and no more weight. 9.5 means no more reps, but a slightly heavier load was possible. RPE 9 is one rep in reserve, 8 is two and 7 is three. Half points cover the uncertainty, so 8.5 means one rep left, possibly two. RPE 5 to 6 leaves roughly four to six reps, the territory of warm-ups and technique work, and below that is light effort that programmes rarely bother writing down. Separately, the Borg scale running from 6 to 20 is the one used for cardio and in research, rating whole-body effort and breathlessness rather than reps left.
Using RPE in a programme
Take squats written as 3 sets of 5 at RPE 8. After warming up, pick a weight you expect to leave two reps in the tank. If the first set feels like a 9, take off around 5 per cent for the rest; if it feels like a 7, add 2.5 to 5kg. Over weeks, the weight at a given RPE rising is your progress. Another common pattern is a top single at RPE 8 followed by back-off sets at a fixed percentage of it, which lets a good day run heavier and a bad day stay sensible.
Common mistakes
Rating how unpleasant a set felt rather than how many reps were left. High-rep sets burn and leave you breathless while still being several reps short of failure, so they get rated too high. Beginners in particular tend to underestimate how much they have left, which is why RPE works best as something to track before it is used to set loads. Rate straight after the set, before the number drifts. And do not use a low rating as cover for a session that was simply not trying.
Examples
- RPE 8 = 2 reps left in the tank
- Squat singles at RPE 9
- Adjusting weight based on daily RPE
Related Terms
References
Compound exercises
Put this into practice with exercises from the library.
Front Squats With Two Kettlebells
Strength · Kettlebells
Full Range-Of-Motion Lat Pulldown
Strength · Cable
Gironda Sternum Chins
Strength · Other
Glute Ham Raise
Powerlifting · Machine
Glute Kickback
Strength · Bodyweight
Goblet Squat
Strength · Kettlebells
Good Morning
Powerlifting · Barbell
Good Morning off Pins
Powerlifting · Barbell
Common questions
What is RPE?
A scale measuring how hard an exercise feels, typically from 1-10. Rate of Perceived Exertion is a subjective measure of exercise intensity on a 1-10 scale.
What exercises train the RPE?
Good options include Front Squats With Two Kettlebells, Full Range-Of-Motion Lat Pulldown, Gironda Sternum Chins, Glute Ham Raise, Glute Kickback. Each links to a step-by-step guide with demonstration images.
What are examples of RPE?
RPE 8 = 2 reps left in the tank; Squat singles at RPE 9; Adjusting weight based on daily RPE.
Put it into practice
12-Week Muscle Building · £29
A 12-week, four-day hypertrophy plan in three phases, with a modest calorie surplus