Skip to content

Glasgow Coma Scale (GCS) Calculator

The Glasgow Coma Scale provides a practical method for assessment of impairment of conscious level in response to defined stimuli.

Eye Opening

Verbal Response

Motor Response

Result

Glasgow Coma Scale Score

--/ 15
Complete all sections
Eye
-
Verbal
-
Motor
-

Clinical Notes

  • GCS is a neurological scale which aims to give a reliable and objective way of recording the conscious state of a person.
  • The lowest possible GCS (the sum) is 3 (deep coma or death), while the highest is 15 (fully awake person).
  • Report each section score individually (e.g., E4V5M6 = GCS 15).
  • Source: Teasdale G et al. (1974)

About the Glasgow Coma Scale

The Glasgow Coma Scale (GCS) is a clinical scale used to reliably measure a person's level of consciousness after a brain injury. The GCS assesses a person based on their ability to perform eye movements, speak, and move their body. These three behaviors make up the three elements of the scale: eye, verbal, and motor.

Interpretation

  • Severe Head Injury: GCS score of 8 or less
  • Moderate Head Injury: GCS score of 9 to 12
  • Mild Head Injury: GCS score of 13 to 15

Disclaimer: This tool is intended for educational and reference purposes only. It should not be used as a substitute for professional medical judgment or advice.