Calculators/Glasgow Coma Scale (GCS)

Glasgow Coma Scale (GCS) Calculator

Consciousness score from eye, verbal and motor responses

Best eye response (E) (1–4)

Best verbal response (V) (1–5)

Best motor response (M) (1–6)

Equation & limitations

Equation: GCS = E (1–4) + V (1–5) + M (1–6); range 3–15
Version: Glasgow Coma Scale (Teasdale & Jennett 1974)
Source: Teasdale G, Jennett B. Assessment of coma and impaired consciousness. Lancet. 1974;2(7872):81–84.
Appropriate in: Adults and children ≥2 years with acute brain injury or encephalopathy.
Limitations: Record the BEST response on the better side; the scale assumes the patient can be assessed (intubation and sedation confound the verbal component).
A single number loses the E/V/M pattern, which is more informative — quote components too.
Not a substitute for a structured neurological examination or imaging decision.

For educational use. Results support, and do not replace, clinical judgement — check them against the patient and local guidelines.