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Pain Scale Calculator

Rate your pain intensity with three validated clinical scales — NRS, VAS, and Wong-Baker. Returns a category aligned with IASP/WHO standards.

Numeric Rating Scale — pick a whole number from 0 to 10.

Pick a scale and enter a value to classify your pain intensity.

RangeMeaning
0No pain
1 – 3Mild pain
4 – 6Moderate pain
7 – 10Severe pain

How it works

Three clinically validated pain scales are used here: NRS (Numeric Rating Scale, 0–10), VAS (Visual Analog Scale, 0–100 mm) and Wong-Baker FACES (a faces scale for children and people with language barriers). All values are normalised to a 0–10 scale and binned per Serlin et al. 1995 (IASP/WHO): 0 no pain, 1–3 mild, 4–6 moderate, 7–10 severe.

This is a self-assessment and does not replace medical diagnosis. For sudden, persistent, or symptom-accompanied pain, seek medical help promptly.

Frequently Asked Questions

What is the NRS pain scale?+
The Numeric Rating Scale (NRS) is an 11-point scale from 0 to 10. 0 means no pain, 10 means worst pain imaginable. It is the most widely used pain scale in clinical practice worldwide.
How does VAS differ from NRS?+
The Visual Analog Scale (VAS) is an unmarked 100 mm line. Patients mark their pain intensity as a position on the line. VAS offers finer resolution but is more cumbersome to administer.
When is Wong-Baker FACES used?+
The FACES scale was developed in 1983 for children aged 3 and older, and is now standard for adults with language barriers or cognitive impairment. Six faces show a 0–10 scale in 2-point steps.
Which scores are 'clinically meaningful'?+
Pain ≥ 4/10 is treatment-worthy in most guidelines. A reduction of at least 30 % or 2 points is considered a clinically meaningful improvement.
How often should I rate my pain?+
Acute pain: rate before and 30–60 minutes after each intervention. Chronic pain: daily at the same time of day, ideally with a pain diary over at least two weeks.
What's the difference between pain and suffering?+
Pain is the sensory component; suffering covers the emotional and functional burden. NRS only measures intensity — for full assessment use multidimensional tools such as the Brief Pain Inventory (BPI).
Are self-ratings reliable?+
Yes — self-ratings are the gold standard because pain is subjective. Observer-rated scales are reserved for patients who cannot communicate (e.g. dementia, unconsciousness).

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Background

Pain Scale Guide — NRS, VAS, Wong-Baker Explained

7 min