NIH Stroke Scale (NIHSS) Calculator

Calculate the NIHSS score to quantify stroke severity across 13 neurological domains.

Level of Consciousness

LOC Questions (month/age)

LOC Commands

Best Gaze

Visual Fields

Facial Palsy

Motor Arm

Motor Leg

Limb Ataxia

Sensory

Best Language

Dysarthria

Extinction and Inattention

How to Use the NIHSS Calculator

Select the score for each of the 13 neurological items.
Use 0 for normal function in each category.
Click 'Calculate' to see the total score and severity classification.

Casi d'Uso

•Quantifying stroke severity in acute settings.
•Monitoring neurological recovery over time.
•Research and clinical trial eligibility screening.

Formula

NIHSS = sum of 13 item scores. 0 = no stroke; 1–4 = minor; 5–15 = moderate; 16–20 = moderate-severe; 21–42 = severe.

Domande Frequenti

What is the NIHSS?

The NIH Stroke Scale (NIHSS) is a systematic assessment tool used to evaluate the severity of neurological deficits caused by a stroke. It consists of 13 items assessing consciousness, gaze, vision, facial palsy, motor, ataxia, sensory, language, dysarthria, and extinction.

How is NIHSS interpreted?

0 = No stroke; 1–4 = Minor stroke; 5–15 = Moderate; 16–20 = Moderate-to-severe; 21–42 = Severe stroke. Higher scores indicate more severe deficits.

Medical disclaimer

This calculator is for educational purposes only. It does not replace professional medical evaluation. Always consult a qualified healthcare provider for clinical decisions.