Glasgow Coma Scale (GCS) Calculator
Select eye, verbal, and motor responses to calculate the GCS total score and severity classification instantly.
Use the Glasgow Coma Scale (GCS) Calculator
Eye Opening Response
Select the best observed response
Verbal Response
Select the best observed response
Motor Response
Select the best observed response
GCS Total Score
For educational and reference use only. GCS assessment must be performed by trained healthcare professionals. Do not use this tool as a substitute for clinical evaluation.
Summary
The Glasgow Coma Scale (GCS) is a standardized neurological assessment tool used to objectively measure a patient's level of consciousness after brain injury. It scores three components — eye opening, verbal response, and motor response — and sums them to produce a total score from 3 to 15. Scores of 13–15 indicate mild impairment, 9–12 moderate, and 3–8 severe impairment or coma.
How it works
- Select the best eye opening response observed (1–4 points).
- Select the best verbal response observed (1–5 points).
- Select the best motor response observed (1–6 points).
- The calculator instantly sums all three subscores into the GCS total.
- The severity classification and clinical guidance update automatically.
- Review the score breakdown and severity band to guide next steps.
Use cases
- Emergency and trauma assessment of unconscious or injured patients.
- Monitoring neurological status changes over time in ICU settings.
- Standardizing handoff communication between clinical teams.
- Pre-hospital triage to prioritize care for head-injury patients.
- Medical education and training on consciousness assessment.
- Documentation support for nursing and paramedic incident reports.
- Research data collection requiring reproducible consciousness scores.
- Telemedicine consultations requiring a structured assessment framework.