Clinical Frailty Scale (CFS, Rockwood)
Clinical Frailty Scale (Rockwood 2005): one level 1 (very fit) to 9 (terminally ill), with the level descriptor and the not-frail / vulnerable / mild-moderate / severe frailty band.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- CFS level
- 2
Result: CFS 2 (Well): not frail per Rockwood 2005.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- 1-3
- Not frail per Rockwood 2005.
- 4
- Vulnerable / pre-frail per Rockwood 2005.
- 5-6
- Mild-to-moderate frailty; increased risk of adverse outcomes per Rockwood 2005.
- 7-8
- Severe frailty; high risk of adverse outcomes per Rockwood 2005.
- 9
- Approaching end of life (life expectancy <6 months) per Rockwood 2005.
What you enter
- CFS level (1 very fit ... 9 terminally ill)
How this is calculated
Rockwood K, Song X, MacKnight C, et al. A global clinical measure of fitness and frailty in elderly people. CMAJ. 2005;173(5):489-495. v2 (2020) wording per the Dalhousie public CFS PDF. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.