Glasgow Coma Scale Calculator

Glasgow Coma Scale Calculator for Neurology. A total is a concise examination summary, not a diagnosis of brain injury or coma. The interface starts unassessed and does not imply that an examination has occurred.

For shared guidance on choosing a tool and documenting results, read the clinical calculator workflow.

How this calculator works

Add separately assessed eye, verbal and motor responses only when all three have numerical scores. Their ranges are 1-4, 1-5 and 1-6. A component that cannot be tested is recorded as NT with a reason; it is not assigned zero or one.

When to use this calculator

Recording adult responsiveness and communicating the separate examination findings over time.

Inputs used

  • Assessed eye response 1-4 or NT
  • Assessed verbal response 1-5 or NT
  • Assessed motor response 1-6 or NT
  • Untestable reason when applicable

Clinical interpretation

A total is a concise examination summary, not a diagnosis of brain injury or coma. The interface starts unassessed and does not imply that an examination has occurred.

Worked example

E2 V2 M5 totals 9. E4, verbal NT and M6 produces a component record without a numerical total.

Limitations and safety notes

Interference from intubation, sedation, paralysis, language, hearing or injury requires clinical documentation. The tool does not teach examination technique or decide airway management.

Frequently asked questions

Should an intubated verbal response be scored as one?

No. When verbal response cannot be tested, record NT and the reason; retain the testable eye and motor findings without inventing a total.

What does this result leave unresolved?

Interference from intubation, sedation, paralysis, language, hearing or injury requires clinical documentation. The tool does not teach examination technique or decide airway management.

References

  • https://www.glasgowcomascale.org/faq/

Editorial review and citation methodology

Maintained by the Quick Medical Calculator Editorial Team. Content record date: September 9, 2026. A content date is not evidence of independent clinical review. Individual clinical sign-off is not recorded on this page.

  • 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.

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