Glasgow Coma Scale (GCS)

Scores level of consciousness from eye, verbal and motor responses (3–15) and gives the standard E-V-M documentation format.

✓ Reviewed by Dr. Poonam Sekhon Chahal · 24 May 2026
Designed for healthcare professionals or trained caregivers — not for self-diagnosis. If you have symptoms, seek medical care.

How this is calculated

Total = Eye (1–4) + Verbal (1–5) + Motor (1–6). 13–15 mild, 9–12 moderate, 3–8 severe; intubation is usually considered at ≤8.

Sources

  1. Teasdale G, Jennett B Assessment of coma and impaired consciousness. A practical scale. Lancet 1974.
  2. Teasdale G, et al. The Glasgow Coma Scale at 40 years: standing the test of time. Lancet Neurology 2014.
This calculator is for educational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. The result is based on standard clinical formulas applied to the values you entered — your individual situation may need adjustments your doctor can make. Never disregard professional medical advice or delay seeking it because of something you read or calculated on healthcalculus.