ABI Calculator

Free calculate Ankle-Brachial Index (ABI) to assess peripheral arterial disease. Get instant, accurate results with our easy-to-use calculator.

Blood Pressure Measurements

Use the higher of the two ankle pressures (dorsalis pedis or posterior tibial)

Use the higher of the two brachial pressures

Results

Enter blood pressure values to calculate ABI

About ABI

  • • Normal ABI: 0.90-1.30
  • • ABI <0.90 suggests peripheral arterial disease
  • • ABI >1.30 may indicate non-compressible vessels