Glasgow Coma Scale (GCS) Calculator

Form

Results

GCS

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What is Glasgow Coma Scale?

Glasgow Coma Scale records eye, verbal and motor responses as a structured level-of-consciousness assessment.

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How to Use This Calculator

  1. Enter or select Eye response, Verbal response, Motor response.
  2. Check the unit beside each measurement. For a percentage or rate, use the scale and time period stated in the form.
  3. Choose Calculate, then compare the output with the formula and example below. If you change a value or option, calculate again to update the result.
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Formula Used

Total = eye response(1–4)+verbal response(1–5)+motor response(1–6).
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Variables Explained

InputWhat it means
Eye responseUse the observed finding or laboratory value for this criterion, following the definition shown in the form.
Verbal responseUse the observed finding or laboratory value for this criterion, following the definition shown in the form.
Motor responseUse the observed finding or laboratory value for this criterion, following the definition shown in the form.
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Worked Example

Eye 4, verbal 5 and motor 6 give GCS 15.

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Why Use This Calculator?

Use the calculation to make the method and its inputs easier to check with a healthcare professional. Its meaning depends on the clinical setting and on whether the underlying method is appropriate for that person.

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Common Mistakes

    • Report components and untestable responses; sedation or intubation can prevent a valid total.
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Frequently Asked Questions

Is this result a diagnosis or treatment instruction?

No. It describes a calculation or score from the supplied information. A qualified clinician must check the measurements, the method’s applicability and the wider clinical picture.

Can I enter the units from any lab report?

Use the units specified in the form and select a conversion only where the page provides one. Different substances need different conversion factors; a mismatch can produce a plausible but incorrect result.

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Sources & References