RPE is a rating of perceived exertion: a simple way to describe how hard exercise feels. On a common 1–10 scale, 1 is extremely easy and 10 is a maximum effort you could not continue.
A practical RPE scale
| RPE | How it may feel |
|---|---|
| 1–2 | Very easy; warm-up or gentle recovery |
| 3–4 | Comfortable; plenty in reserve |
| 5–6 | Moderate and sustainable |
| 7–8 | Hard; limited reserve |
| 9 | Very hard; perhaps one clean repetition remains |
| 10 | Maximum for that task |
The numbers are descriptive, not moral. RPE 6 is not a poor effort when the session calls for 6.
Why RPE is useful
The same weight or pace can feel different after poor sleep, stress, heat, illness or previous training. RPE lets today’s condition inform the choice while the session keeps a clear purpose.
RPE for strength
Consider how many technically sound repetitions remain. If five more feel available, the set is probably moderate. If perhaps two remain, it is harder. Stop when technique changes, even if the muscles could force more.
RPE for cardio
Use whole-body effort, breathing and the talk test. Moderate activity raises breathing while conversation remains possible; vigorous activity makes full sentences difficult. Heat and medicines can affect heart rate, so no single metric tells the whole story.
When RPE is not enough
New exercisers need time to calibrate it. Pain, dizziness, chest discomfort or unusual shortness of breath should never be reduced to a number; stop and seek appropriate help.
Common mistakes to avoid
- Using sweat, soreness or shaking as the only proof that a session worked.
- Copying another participant’s spring or weight without considering the exercise goal.
- Holding your breath to maintain a pace that is no longer controlled.
- Changing several training variables at once, then being unable to identify what caused fatigue.
- Assuming a modification is a permanent limitation rather than a tool for that day.
Questions worth asking before class
When individual guidance makes sense
Frequently asked questions
What RPE should beginners use?
Moderate work that preserves technique is often sensible, but the instructor and your health context matter.
Is RPE the same as heart rate?
No. Heart rate is measured; RPE is perceived whole-body effort.
Should every workout reach 9 or 10?
No. Maximum effort is unnecessary for most general fitness goals.
Use effort as information
Learn about Bodi Boutique small-group fitness.
About the author
Jazz Collier is the founder of Bodi Boutique in Millmerran, Queensland. She completed Certificate III in Fitness and Certificate III in Beauty in 2016 and has worked in the fitness and beauty industries for approximately 10 years. Her Pilates education includes Online Fitness Education, Studio Pilates and Core Collab. Jazz teaches Pilates and small-group fitness with an emphasis on clear instruction, purposeful options and helping clients build confidence without treating exercise as a performance.
Research and further reading
- Australian Government: physical activity recommendations for adults
- American College of Sports Medicine: 2026 resistance training guidance
Last reviewed: September 2026. This article provides general information and does not replace individual medical, skin or exercise advice.
