EMF distance calculator

This calculator helps you determine the strength of an electromagnetic field (EMF) at a given distance from a source. It is useful for assessing potential exposure to EMF from devices like power lines, Wi-Fi routers, and cell towers.

Input Parameters

Calculation Results

Calculation Formula

EMF Strength (μT) = P / (4πd²)

Where:
P = Source Power (Watts)
d = Distance (meters)
π = 3.14159

Result

EMF Strength: 0.00 μT

EMF distance calculator Calculator Usage Guide

Learn how to use the EMF distance calculator and its working principles

How to Use the Calculator

  1. Select the type of EMF source from the dropdown menu (Power Line, Wi-Fi Router, or Cell Tower).
  2. Enter the power of the source in watts.
  3. Enter the distance from the source in meters.
  4. Click the "Calculate" button to compute the EMF strength.
  5. The result will be displayed in microteslas (μT).

Understanding EMF Strength

EMF strength decreases with distance from the source. This calculator uses the formula P / (4πd²) to estimate the magnetic field strength. The result is given in microteslas (μT), a common unit for measuring magnetic fields.

Safety Considerations

While this calculator provides a general estimate of EMF strength, actual measurements can vary based on environmental factors and the specific characteristics of the source. For precise measurements, consider using a dedicated EMF meter.