NIH Stroke Scale (NIHSS) — Calculator

The NIH Stroke Scale (NIHSS) is a standardized tool to quantify stroke severity (total score 0–42). Use this form to quickly compute a NIHSS total score.

Score 0–3.
Ask two orientation questions (e.g., month, age).
Give two simple commands (e.g., "open and close eyes", "grip and release hands").
Assess horizontal eye movements.
Confrontation testing for hemianopia or quadrantanopia.