Lower Extremity Fi Unctional Scale Calculator

Introduction & Importance

The Lower Extremity Functional Scale (LEFS) is a widely used, reliable, and valid tool for measuring physical function in individuals with lower extremity musculoskeletal disorders…

How to Use This Calculator

1. Select the appropriate value for each activity based on your current ability.
2. Click the ‘Calculate’ button.
3. View your results and interpretation below.

Formula & Methodology

The LEFS is a 20-item questionnaire that measures the difficulty of performing activities of daily living…

Real-World Examples

Data & Statistics

LEFS Scores and Corresponding Function Levels

LEFS Score	Function Level
0-20	Severely impaired

Expert Tips

• Always consult with a healthcare professional before using this calculator.
• Track your progress by re-taking the calculator periodically.

Interactive FAQ

What does a high LEFS score mean?

A high LEFS score indicates better functional ability…

For more information, see the original LEFS study or the American Academy of Orthopaedic Surgeons.