Neurology · Emergency Medicine

NIH Stroke Scale (NIHSS) calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Level of consciousness

LOC questions: month and age

LOC commands: open/close eyes and grip/release hand

Best gaze

Visual fields

Facial palsy

Motor: left arm

Motor: right arm

Motor: left leg

Motor: right leg

Limb ataxia

Sensory

Best language

Dysarthria

Extinction and inattention

Complete all required inputs to calculate the score.

Lyden P et al. Improved reliability of the NIH Stroke Scale using video training. Stroke (1994)