KOOS — Knee Osteoarthritis Outcome Score

Calculates the Knee Osteoarthritis Outcome Score (KOOS) across five subscales: Symptoms, Pain, Activities of Daily Living (ADL), Sport/Recreation, and Quality of Life. Each subscale scored 0–100 (100 = no problems). Used to assess knee OA and surgical outcomes.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculates the Knee Osteoarthritis Outcome Score (KOOS) across five subscales: Symptoms, Pain, Activities of Daily Living (ADL), Sport/Recreation, and Quality of Life. Each subscale scored 0–100 (100 = no problems). Used to assess knee OA and surgical outcomes

Each component has a specific meaning:

  • Five subscales: Symptoms — The five subscales: symptoms recorded for the scenario being assessed.
  • Pain — The pain recorded for the scenario being assessed.
  • Activities of Daily Living — The activities of daily living recorded for the scenario being assessed.
  • Sport/Recreation — The sport/recreation recorded for the scenario being assessed.
  • Quality of Life — The quality of life recorded for the scenario being assessed.

Note: Interpret the koos score result against the thresholds and context described above.

How to Use

Enter the five subscales: Symptoms, Pain, Activities of Daily Living, Sport/Recreation, Quality of Life for the scenario you are assessing. Calculates the Knee Osteoarthritis Outcome Score (KOOS) across five subscales: Symptoms, Pain, Activities of Daily Living (ADL), Sport/Recreation, and Quality of Life. Each subscale scored 0–100 (100 = no problems). Used to assess knee OA and surgical outcomes. Use the koos score result to inform your calculation.

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Frequently Asked Questions