Barthel Index Calculator
Score the Barthel Index of activities of daily living on the 100-point and 20-point scales.
Your result
Enter your numbers and press the button. Your result appears here.
How the Barthel Index is scored
The Barthel Index (Mahoney and Barthel, 1965) rates 10 everyday activities. Higher scores mean more independence.
Total = sum of 10 items (0–100); 20-point version = total ÷ 5
Shah's bands: 0–20 total, 21–60 severe, 61–90 moderate, 91–99 slight dependence, 100 independent.
Barthel Index bands
| 100-point | 20-point | Dependence |
|---|---|---|
| 100 | 20 | Independent |
| 91–99 | 19 | Slight |
| 61–90 | 13–18 | Moderate |
| 21–60 | 5–12 | Severe |
| 0–20 | 0–4 | Total |
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- Barthel Index Calculator 20 Points
- Barthel Index Calculator Interpretation
- Barthel Index Calculator Out of 20
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- Modified Barthel Index Calculator 100 Points
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- Barthel Index Assessment Calculator
- Modified Barthel Adl Index Calculator
- Original Barthel Index Calculator
- Barthel Index of Activities of Daily Living
- Barthel Index Score Interpretation 0-100
- Barthel Index Value Range
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- Barthel Index Daily Activities
- Modified Barthel Index of Daily Living
- Modified Barthel Index 20 Point
- Barthel Index of Adl 20 Points
- Barthel Index Score Interpretation 0 20
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- Barthel Index 20 Interpretation
- Barthel Index of Adls Out of 20
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- Barthel Index 50/100 Interpretation
- 60/100 Barthel Index Score Interpretation
- Barthel Index 20 Point Scale Interpretation
- Barthel 20 Point Scale
Frailty
- Frailty Index Calculator
- Modified Frailty Index Calculator
- Frailty Index Calculator for Elderly
- Modified Frailty Index 5 Calculator
- How to Calculate Frailty
- Frailty Index Score 0.25
- Frailty Index Score 0.139
- Modified 5-item Frailty Index
- Modified Frailty Index Mfi-5
- Frailty Index Score 0.5
- Frailty Index Score Range
- Frailty Index Score 0.056
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- 5 Factor Modified Frailty Index
Common questions
How accurate is a life expectancy estimate?
It is an average for everyone your age and sex. Your own health, habits and family history can move it by many years either way.
Is PhenoAge the same as an epigenetic clock?
No. PhenoAge uses routine blood tests; epigenetic clocks use DNA methylation. Both were developed by Levine and colleagues.
How can I lower my risk of falling?
Strength and balance exercise such as tai chi, a medicine review, eye checks, safe footwear and removing trip hazards at home.
What is a normal walking speed for older adults?
About 1.2 to 1.3 m/s in the 60s and 70s. Below 0.8 m/s is considered slow.
What is a good Barthel score?
100 means fully independent in the 10 activities. Under 60 usually means significant help is needed.
Sources
- US Social Security Administration. Actuarial life table, 2022 period life table (2025 Trustees Report).
- Levine ME et al. An epigenetic biomarker of aging for lifespan and healthspan. Aging 2018;10:573–591; Liu Z et al. PLoS Med 2018;15:e1002718 (and correction).
- Morris JF, Temple W. Spirometric "lung age" estimation for motivating smoking cessation. Prev Med 1985;14:655–662. Quanjer PH et al. ECSC lung volumes and forced ventilatory flows. Eur Respir J 1993;6 Suppl 16:5–40.
- CDC. STEADI: Stay Independent brochure. Morse JM et al. A prospective study to identify the fall-prone patient. Soc Sci Med 1989;28:81–86.
- Bohannon RW, Andrews AW. Normal walking speed: a descriptive meta-analysis. Physiotherapy 2011;97:182–189. Studenski S et al. Gait speed and survival in older adults. JAMA 2011;305:50–58.
- Mahoney FI, Barthel DW. Functional evaluation: the Barthel Index. Md State Med J 1965;14:61–65. Shah S et al. J Clin Epidemiol 1989;42:703–709.
- Morley JE et al. A simple frailty questionnaire (FRAIL). J Nutr Health Aging 2012;16:601–608. Searle SD et al. A standard procedure for creating a frailty index. BMC Geriatr 2008;8:24.
- Kivipelto M et al. Risk score for the prediction of dementia risk in 20 years among middle aged people. Lancet Neurol 2006;5:735–741. Tombaugh TN, McIntyre NJ. J Am Geriatr Soc 1992;40:922–935.