Epworth Sleepiness Scale Calculator
Rate your chance of dozing in eight everyday situations to score the Epworth Sleepiness Scale from 0 to 24. Example: rating every situation as a slight chance (1) gives 8, in the higher-normal range.
Show steps
How to use the Epworth Sleepiness Scale Calculator
- Enter the values in the fields.
- Press Calculate to see the result with the steps shown.
Formula and method
Epworth score = sum of eight ratings (0 = would never doze, 3 = high chance of dozing). Range 0 to 24.
Epworth score interpretation
| Score | Meaning |
|---|---|
| 0 to 5 | Lower normal daytime sleepiness |
| 6 to 10 | Higher normal daytime sleepiness |
| 11 to 12 | Mild excessive sleepiness |
| 13 to 15 | Moderate excessive sleepiness |
| 16 to 24 | Severe excessive sleepiness |
Common causes of a high score
Obstructive sleep apnea, insufficient sleep, shift work, restless legs, depression, sedating medicines, narcolepsy and thyroid disease.
Improving sleep
A fixed wake time, daylight in the morning, limiting caffeine after noon and avoiding alcohol before bed help many people. The Sleep Calculator can suggest bedtimes.
Cautions
This calculator is for education and is not medical advice. Decisions about diagnosis and treatment belong with a qualified clinician.
Frequently asked questions
What is a normal Epworth score?
10 or lower.
What score means sleep apnea?
The scale does not diagnose apnea, but 11+ often prompts a sleep study.
What are the eight situations?
Reading, TV, public place, car passenger, afternoon rest, talking, after lunch and in traffic.
How often can I take it?
Whenever you like, using your usual recent life.
Is it safe to drive with a high score?
Avoid driving if you are drowsy.
Is it a diagnosis?
No.
Sources
- Johns MW, Sleep 1991: A new method for measuring daytime sleepiness
- American Academy of Sleep Medicine: Sleep education
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