Calculate the Glasgow Coma Scale total from eye, verbal and motor responses.
The minimum total is three rather than zero because each component starts at one. Reporting the components separately is standard practice because the same total can represent very different clinical pictures. The motor component carries most of the prognostic information, which is why a total alone is considered insufficient documentation.
Glasgow Coma Scale
GCS = eye (1 to 4) + verbal (1 to 5) + motor (1 to 6), giving 3 to 15
This reproduces a published formula for educational and reference use only. It is not a diagnostic tool, does not account for individual clinical context, and must not be used to make or change treatment decisions. Clinical assessment by a qualified healthcare professional is always required. Reduced consciousness is a medical emergency. If someone is drowsy, confused or unresponsive after a head injury or illness, call emergency services immediately. Scoring requires trained assessment of specific responses.
GCS = eye (1 to 4) + verbal (1 to 5) + motor (1 to 6), giving 3 to 15 The minimum total is three rather than zero because each component starts at one. Reporting the components separately is standard practice because the same total can represent very different clinical pictures.
The motor component carries most of the prognostic information, which is why a total alone is considered insufficient documentation.
This calculator takes 3 inputs: Eye opening, Verbal response, Motor response. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.