Glasgow Coma Scale (GCS) Calculator — free guideline decision tool
Score level of consciousness with the Glasgow Coma Scale (GCS) from eye, verbal and motor responses (3–15).
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Eye opening | 4 Spontaneous |
|---|---|
| Verbal response | 5 Oriented |
| Motor response | 6 Obeys commands |
→GCS15/15
- Breakdown：E4 V5 M6
- Severity：Mild brain injury
- Airway：Monitor; reassess for change.
| Eye opening | 1 None |
|---|---|
| Verbal response | 1 None |
| Motor response | 1 None |
→GCS3/15
- Breakdown：E1 V1 M1
- Severity：Severe brain injury
- Airway：GCS ≤ 8: consider definitive airway protection.
Common questions
What is Glasgow Coma Scale (GCS) Calculator?
Score level of consciousness with the Glasgow Coma Scale (GCS) from eye, verbal and motor responses (3–15).
How is Glasgow Coma Scale (GCS) Calculator calculated? What is the core formula?
GCS = Eye(1–4) + Verbal(1–5) + Motor(1–6). Severity: ≤ 8 severe, 9–12 moderate, 13–15 mild.
When is Glasgow Coma Scale (GCS) Calculator used?
Assess and trend consciousness in trauma, stroke and the critically ill. Record the EVM components.
What are the key clinical points for Glasgow Coma Scale (GCS) Calculator?
Always report components (e.g. E3V4M5), not just the total. Score the best response; if intubated, verbal = 1T. GCS ≤ 8 — consider a definitive airway.
What are the limits and cautions when using Glasgow Coma Scale (GCS) Calculator?
For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
How is Glasgow Coma Scale (GCS) Calculator calculated in practice? Can you show a worked example?
Inputs: Eye opening 4 Spontaneous, Verbal response 5 Oriented, Motor response 6 Obeys commands → Result: GCS 15 /15（Breakdown: E4 V5 M6, Severity: Mild brain injury, Airway: Monitor; reassess for change.） Inputs: Eye opening 1 None, Verbal response 1 None, Motor response 1 None → Result: GCS 3 /15（Breakdown: E1 V1 M1, Severity: Severe brain injury, Airway: GCS ≤ 8: consider definitive airway protection.）
Run Glasgow Coma Scale (GCS) Calculator now
Score level of consciousness with the Glasgow Coma Scale (GCS) from eye, verbal and motor responses (3–15).
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.
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