NIHSS Calculator

Fast, evidence-based NIHSS scoring for stroke clinicians. Now with adjustable text size, severity-graded colour coding, and full peer-reviewed references built in.

NIHSS Calculator is a fast, accurate, and beautifully designed NIH Stroke Scale scoring tool — built for neurologists, stroke physicians, emergency doctors, and nursing staff working in acute stroke care. Designed by Dr Atif Elnil (MBBS MRCP), this app brings the complete 15-item NIHSS to your pocket with a clean, intuitive interface optimised for use at the bedside, in the emergency department, and on the stroke ward. WHAT'S INCLUDED All 15 NIHSS items scored in full: • 1a — Level of consciousness • 1b — LOC questions (month and age) • 1c — LOC commands (eyes and hand) • 2 — Best gaze • 3 — Visual fields • 4 — Facial palsy • 5a/5b — Motor arm (left and right, scored separately) • 6a/6b — Motor leg (left and right, scored separately) • 7 — Limb ataxia • 8 — Sensory • 9 — Best language (aphasia) • 10 — Dysarthria • 11 — Extinction and inattention INSTANT SEVERITY GRADING The total score updates in real time as you score each item, with immediate severity classification: • 0 — No stroke symptoms • 1–4 — Minor stroke • 5–10 — Moderate stroke • 11–15 — Moderate-severe stroke • 16–20 — Severe stroke • 21–42 — Very severe stroke DESIGNED FOR CLINICAL USE • Large, touch-friendly response buttons optimised for use with gloves or in a hurry • Progress indicator shows how many items have been scored • One-tap reset to start a new patient assessment • Works fully offline — no internet connection required • No login, no account, no data collected WHO IS THIS FOR? • Stroke physicians and neurologists • Emergency medicine doctors • Acute stroke nursing staff • Stroke specialist nurses and ANPs • Medical students on neurology and emergency placements • Paramedics and pre-hospital teams IMPORTANT NOTICE NIHSS Calculator is a clinical decision-support tool for use by qualified healthcare professionals. It does not recommend for or against thrombolysis or thrombectomy. All clinical decisions must be made by a qualified clinician using full clinical assessment and local guidelines. This application is intended for educational and informational purposes only. It is not a substitute for professional clinical judgment, local guidelines, or specialist advice. Always follow institutional protocols and consult appropriate medical professionals when making treatment decisions.