Length Contraction Calculator

Calculate the relativistic length contraction of an object moving at high velocities. According to Einstein's Special Relativity, objects appear shorter in the direction of motion to a stationary observer.

Length Contraction Calculator

The length of the object at rest.
Must be less than c (299,792,458 m/s)

How to Use

  1. 1

    Enter Proper Length

    Input the 'proper length' (L₀) of the object in meters. This is the length of the object when measured at rest.

  2. 2

    Enter Velocity

    Input the velocity of the object relative to the observer in meters per second.

  3. 3

    Calculate

    Click calculate to view the contracted length (L) as well as the Lorentz factor (γ).

Frequently Asked Questions

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