GCS Score Calculator
Gcs score calculator works out GCS total and GCS notation from Verbal scale, Eye opening (E) and Verbal response (V). The default figures on this page give GCS total of 15; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
3 steps
- Eye 4, verbal 5, motor 6.
- Total = 4 + 5 + 6 = 15.
- Mild brain injury (13-15).
Componentstable
| component | response | score |
|---|---|---|
| Eye opening | 4 - Spontaneous: eyes open before stimulus | 4 |
| Verbal response | 5 - Orientated: gives name, place and date | 5 |
| Best motor response | 6 - Obeys commands: two-part request carried out | 6 |
Its 5 worked examples are re-run on every release, last on 15 September 2026. What changed
Sources and references
4 sources
What the gcs score calculator calculates
Scores the Glasgow Coma Scale from its eye, verbal and motor components, reports the E-V-M breakdown alongside the 3-15 total and the severity band, supports the paediatric verbal scale, and withholds a total when any component is not testable.
How to use this gcs score calculator
Enter Verbal scale, Eye opening (E), Verbal response (V) and Best motor response (M). GCS total updates as you type, and “Use a worked example” loads checked figures you can adjust. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind GCS total, GCS notation and Severity band.
The method follows Teasdale G, Jennett B. Assessment of coma and impaired consciousness: a practical scale, Glasgow Coma Scale - official structured assessment aid (Teasdale et al., Institute of Neurological Sciences NHS Greater Glasgow and Clyde), Teasdale G, Maas A, Lecky F, Manley G, Stocchetti N, Murray G. The Glasgow Coma Scale at 40 years: standing the test of time and James HE. Neurologic evaluation and support in the child with an acute brain insult.
A fully alert patient scores the maximum 15 example
With Verbal scale: adult, Eye opening (E): 4, Verbal response (V): 5, Best motor response (M): 6, the calculator returns GCS total: 15, GCS notation: E4 V5 M6, Severity band: Mild brain injury (13-15). This example is checked against an independent source in the test suite.
What you can compare
Change one input at a time to see how it affects GCS total, GCS notation and Severity band. The inputs you can vary are Verbal scale, Eye opening (E), Verbal response (V) and Best motor response (M).
Understanding GCS total, GCS notation and Severity band
A structured observation, not a diagnosis. The total conceals which component is impaired, and sedation, intoxication, paralysis and intubation all confound it. Any deterioration in GCS is an emergency for a clinician, not a calculator.
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
See something wrong? Report a problem with this calculator
Frequently asked questions
How do you calculate a GCS score?
Scores the Glasgow Coma Scale from its eye, verbal and motor components, reports the E-V-M breakdown alongside the 3-15 total and the severity band, supports the paediatric verbal scale. Open “How this is worked out” beside the result to see each step for your own figures.
Is a GCS of 8 considered a coma?
Scores the Glasgow Coma Scale from its eye, verbal and motor components, reports the E-V-M breakdown alongside the 3-15 total and the severity band, supports the paediatric verbal scale. Put your own figures in above and the working updates beside the result. For scale, the default figures on this page give 15.
What does a GCS score of 3 to 15 mean?
Scores the Glasgow Coma Scale from its eye, verbal and motor components, reports the E-V-M breakdown alongside the 3-15 total and the severity band, supports the paediatric verbal scale. On this page it is computed from Verbal scale, Eye opening (E) and Verbal response (V) and shown as GCS total, GCS notation and Severity band.
What is a good GCS score?
It needs Verbal scale, Eye opening (E), Verbal response (V) and Best motor response (M). Nothing else is required, and the figures stay in your browser.
What information do I need for the gcs score calculator?
You need Verbal scale, Eye opening (E), Verbal response (V) and Best motor response (M). The page opens with default figures that give GCS total of 15, so you can see the scale before entering your own.
What does this gcs score calculator show?
It shows GCS total, GCS notation, Severity band, Eye (E), Verbal (V), Motor (M), Verbal scale used and Components, with the working and any warnings for your entries.