SAR Calculator | Specific Absorption Rate Tool

The SAR Calculator estimates the rate at which RF energy is absorbed by biological tissue, expressed in watts per kilogram (W/kg). SAR is a key metric in evaluating human exposure to electromagnetic fields.

EXAMPLE:

• INPUTS:

  • Electric Field = 5 V/m
  • Conductiviy of material = 130 S/meter
  • Mass Density = 1150 Kg/m^3

• OUTPUT:

  • Specific Absoption Rate (SAR) = 2.826 W/Kg
  • Power Density = 0.066

SAR Formula

Benefits/Applications

• Ensures compliance: Helps with safety standards for mobile and wireless devices.
• Protects human health: Predicts energy absorption in tissue models.
• Useful in medical RF applications: Hyperthermia therapy and diagnostics often monitor SAR.

Summary:

Use this calculator to quantify how much RF energy biological tissue absorbs, aiding in safety assessments and compliance with exposure guidelines.