Glasgow Coma Scale Calculator

How this calculator works

The Glasgow Coma Scale summarizes level of consciousness using eye opening, verbal response, and motor response.

Inputs used

• Eye response
• Verbal response
• Motor response

Clinical interpretation

Use the total score and component scores to communicate neurologic status and trend changes over time.

Limitations and safety notes

Intubation, sedation, paralysis, language barriers, intoxication, and facial or ocular trauma can limit interpretation.

References

• Teasdale G, Jennett B. Assessment of coma and impaired consciousness. Lancet. 1974.
• Brain Trauma Foundation guideline resources.

Editorial review and citation methodology

Reviewed by the Quick Medical Calculator Editorial Team. Last reviewed: June 19, 2026. The review checks calculator inputs, intended population, interpretation, limitations, and source alignment.

• Prefer original validation studies for scoring systems and prediction tools.
• Use current specialty society guidance, transplant allocation policy, public health guidance, or regulator resources when they govern clinical use.
• Include limitations and safety notes when a calculator is population-specific, context-dependent, or unsuitable as a standalone decision tool.