Joint Range of Motion (ROM)Health

Joint Range of Motion (ROM) & Flexibility Deficit Calculator (AAOS Orthopedic Standards)

Calculate your joint angle Range of Motion (ROM in degrees °), flexibility deficit, and rehabilitation recovery percentage following orthopedic surgery or sports injuries (ACL, rotator cuff, knee/shoulder) compared to official AAOS normative values.

Calculated Result

Joint Mobility Recovery Percentage (%)

82.1

Calculator Inputs

°
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°
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Joint Mobility Recovery Percentage (%)

82.1

Remaining ROM Angular Deficit (Degrees °)

25 °

Measured ROM vs Normative Target ROM Angle (Degrees °)

Measured Angle
115 °(45%)
Normative Angle
140 °(55%)

Physical therapy and orthopedic clinical metric for measuring post-operative joint mobility and contracture recovery.

This tool is a mathematical wellness and fitness estimation model for general educational guidance only. The results do not constitute medical diagnosis, clinical advice, or treatment plans. Always consult a qualified physician or certified dietitian before starting any dietary regimen, exercise program, or making health decisions.

Calculation Methodology

Mobility Recovery Percentage (%) = (Measured Angle in Degrees / Standard Normative Angle) * 100. Angular Deficit (Degrees) = Standard Angle - Measured Angle.

Frequently Asked Questions

Normal knee flexion is 135° to 145°, while normal extension is 0° (completely flat/straight without hyperextension).

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