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Radar Vehicle Speed Calculator

By RF Wireless Expert Team

This page explains the Radar Vehicle Speed Calculator, also known as the Radar Gun Calculator. It details the formula used by radar technology to determine the speed of a moving vehicle. The same principle is applied in radar speed signs.

Radar Vehicle Speed Calculator | Radar Gun Calculator

Inputs

Outputs

EXAMPLE:

  • INPUTS:
    • Radar emitted transmitter frequency = 24.125 GHz
    • Difference in frequency between transmitter and received echo = 5 Hz
  • OUTPUTS:
    • Vehicle Speed in Kph (Km/hour) = 31.088
    • Vehicle Speed in mph (miles/hour) = 19.317

Formula for Radar Vehicle Speed Calculator

Here’s the formula or equation used by Radar to calculate the speed of a moving vehicle:

Radar vehicle speed calculator formula Alt text: Radar vehicle speed calculator formula

The vehicle speed calculation formula shown above is used by both radar guns and radar speed signs.

kph to mph conversion Alt text: kph to mph conversion

Unit conversion from Kph (kilometers per hour) to mph (miles per hour) is done by multiplying the Kph value by a factor of 0.621371.

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