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Free sleep apnea screening tool

STOP-BANG Calculator

Answer the standard STOP-BANG questions, add the body-size details once, and get a plain-language sleep apnea risk summary.

Start here

Answer the STOP-BANG quiz first

Work straight down the form, then calculate. Each positive answer or threshold adds one point.

Do you snore loudly?
S

Do you snore loudly?

Loud enough to be heard through a door or to disturb a partner.

Do you often feel tired, fatigued, or sleepy during the daytime?
T

Do you often feel tired, fatigued, or sleepy during the daytime?

Think daytime sleepiness, dozing off, or waking unrefreshed.

Has anyone observed you stop breathing, choke, or gasp during sleep?
O

Has anyone observed you stop breathing, choke, or gasp during sleep?

Witnessed pauses in breathing count here.

Do you have or are you being treated for high blood pressure?
P

Do you have or are you being treated for high blood pressure?

Answer yes if you have hypertension or take medication for it.

Body size inputs

Add your height and weight here so the calculator can work out whether your BMI meets the STOP-BANG threshold.

Sex at birth
Calculated BMI

Add height and weight to calculate BMI automatically.

Fill every field, then calculate your STOP-BANG score.
Score summary
General screening thresholds

Fill out the questionnaire to see your score.

This panel will show your total score, risk band, and plain-language interpretation after you calculate.

Low risk

0-2

Intermediate risk

3-4

High risk

5-8

How STOP-BANG scoring works

STOP-BANG stands for Snoring, Tiredness, Observed apnea, high blood Pressure, BMI, Age, Neck circumference, and Gender. Each positive factor adds one point.

For general screening, 0 to 2 points is often treated as low risk, 3 to 4 points as intermediate risk, and 5 to 8 points as high risk for obstructive sleep apnea.

Important note

Useful for screening, not diagnosis

STOP-BANG is best used to spot risk, especially when snoring and daytime sleepiness show up together. It does not confirm obstructive sleep apnea and it does not replace medical advice or a sleep study.

STOP-BANG score interpretation and FAQs

These are the questions people usually have after they see a STOP-BANG score for the first time.

What does STOP-BANG stand for?

STOP-BANG stands for Snoring, Tiredness, Observed apnea, high blood Pressure, BMI, Age, Neck circumference, and Gender. Each item is worth one point.

What is a high STOP-BANG score?

For general-population screening, 0 to 2 points is low risk, 3 to 4 points is intermediate risk, and 5 to 8 points is high risk for obstructive sleep apnea.

Is the STOP-BANG questionnaire a diagnosis?

No. STOP-BANG is a screening tool, not a diagnosis. A higher score means it is worth talking with a clinician about formal sleep apnea testing.

What should I do if I score 3 or more?

A score of 3 or more suggests meaningful risk. Use the result as a prompt to discuss symptoms, snoring, daytime sleepiness, and testing options with a qualified healthcare professional.

How is STOP-BANG different from the Epworth Sleepiness Scale?

STOP-BANG combines anatomy and symptom questions to screen for sleep apnea risk. The Epworth Sleepiness Scale focuses on daytime sleepiness in common situations.

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