Barthel Index Calculator
Score all 10 ADL activities — Bowels, Bladder, Grooming, Toilet, Feeding, Transfer, Mobility, Dressing, Stairs, and Bathing — with complete graded criteria. The global standard for ADL assessment in stroke rehabilitation and geriatric medicine. Maximum 100 points.
NMClinically reviewed byDr. Nikhil Mahajan, PT, MPT · Jan 15, 2026Barthel Index — Score Interpretation Reference
| Score | Dependency Level | Functional Description | Care Setting |
|---|---|---|---|
| 91 – 100 | Independent | Minimal to no dependency in basic ADLs | Community living — no ADL assistance required |
| 61 – 90 | Moderate Dependency | Some assistance needed for several ADLs | Home with support OR assisted living |
| 21 – 60 | Severe Dependency | Major assistance required for most ADLs | Skilled nursing facility OR intensive home care |
| 0 – 20 | Total Dependency | Complete dependence in essentially all ADLs | 24-hour nursing care required |
| MCID ~1.85 pts | Minimal Clinically Important Difference for detecting real functional change beyond measurement error. A change of ≥2 points is clinically meaningful. | ||
| Cut-off: 85 pts at 3 months post-stroke | Barthel Index ≥ 85 at 3 months post-stroke predicts favourable long-term functional outcome and community reintegration. | ||
What Is the Barthel Index?
The Barthel Index (BI) is the most widely used standardised measure of functional independence in activities of daily living in stroke rehabilitation and geriatric medicine worldwide. Developed by Florence Mahoney and Dorothea Barthel at the Maryland State Department of Health and published in Maryland State Medical Journal in 1965, it scores 10 basic ADL activities on a graduated scale with a maximum of 100 points (fully independent) and minimum of 0 (fully dependent). It has been validated in over 100 populations and translated into more than 30 languages.
Barthel Index vs Katz ADL — Key Differences
The Katz ADL uses a simple binary (independent/dependent) scoring — faster and better for screening. The Barthel Index uses graduated scoring with 3–4 levels per activity — more sensitive to partial independence and better suited for tracking rehabilitation progress over time. The Barthel is the standard outcome measure in stroke rehabilitation; the Katz ADL is the standard for geriatric functional assessment and care planning. Use Barthel for rehabilitation outcomes; use Katz for care needs assessment and SNF MDS requirements.
Stroke Rehabilitation Benchmarks
- BI ≥ 85 at 3 months post-stroke predicts favourable long-term functional outcome and community reintegration
- BI ≥ 60 at discharge from acute stroke unit is associated with successful return to community living in most patients
- Admission BI as predictor — Barthel Index at admission to inpatient rehab predicts discharge destination, length of stay, and need for institutionalisation
- BI change of ≥ 20 points during inpatient rehabilitation represents clinically significant functional recovery