Movement Disorder Calculators

Standardized clinical rating-scale scoring tools for neurodegenerative movement disorders. All scoring runs in your browser; no data leaves the device.

Three interactive scoring aids for tracking functional and motor status over time. Pick a scale below to open its calculator.

ALSFRS-R
Revised ALS Functional Rating Scale
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A 12-item functional rating scale for amyotrophic lateral sclerosis, covering bulbar, fine-motor, gross-motor, and respiratory function. Each item is scored 0–4, where 4 is normal function. Higher totals indicate better-preserved function.

12 items · 4 domains Total 0–48
UHDRS
Unified Huntington's Disease Rating Scale
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The standard rating scale for Huntington's disease, combining the Total Motor Score from the motor examination with the Total Functional Capacity and Functional Assessment Scale to capture motor signs alongside everyday functional decline.

Motor · TFC · FAS TMS 0–124
MDS-UPDRS
MDS Unified Parkinson's Disease Rating Scale
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The Movement Disorder Society's revision of the UPDRS for Parkinson's disease, scored across four parts: non-motor experiences of daily living (I), motor experiences of daily living (II), the motor examination (III), and motor complications (IV). Each item is scored 0–4.

Parts I–IV Items 0–4
Clinical-use notice. These calculators are unofficial scoring aids that reproduce the standard item wording of published instruments for scoring convenience. They do not replace clinical judgment, training, or the source publications, and store no data outside your browser.