What is the Glasgow Coma Scale?

The GCS is a clinical tool developed in 1974 to objectively assess consciousness. It evaluates three components: eye opening, verbal response, and motor response.

What does a GCS of 3 mean?

A GCS of 3 is the lowest possible score, indicating no eye, verbal, or motor response. It represents deep unconsciousness or coma.

GCS is used in emergency medicine, trauma assessment, intensive care, and neurosurgery to monitor neurological status and guide treatment decisions.

Free Glasgow Coma Scale Calculator

Calculate the Glasgow Coma Scale (GCS) score from eye, verbal, and motor responses for neurological assessment.

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Eye Opening

Verbal Response

Motor Response

GCS Total Score

15 /15

E+V+M456

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Glasgow Coma Scale

The GCS assesses consciousness level on a scale of 3-15.

GCS = Eye + Verbal + Motor

Severity Classification

GCS ScoreSeverity 13-15Mild 9-12Moderate 3-8Severe (intubation usually needed)

Component Ranges

Eye: 1-4

Verbal: 1-5

Motor: 1-6 (most predictive component)

Example Calculation

A patient with spontaneous eye opening (4), confused speech (4), and obeying commands (6).

01Eye = 4 (Spontaneous)
02Verbal = 4 (Confused)
03Motor = 6 (Obeys commands)
04GCS = 4 + 4 + 6 = 14 (Mild - E4V4M6)

Frequently Asked Questions

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Free Glasgow Coma Scale Calculator

Glasgow Coma Scale

Severity Classification

Component Ranges

Example Calculation

Frequently Asked Questions

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