The Length Contraction Calculator



To calculate the contraction of the meter stick, enter its velocity relative to you, the observer, along its length. Then press the "Contract" button. The Lorentz-Fitzgerald transformation formula for length contraction is: L=L[0]*sqrt(1-(sq(v)/sq(c)))
Here is a normal meter stick, with the contracted one below it.

The ruler at 0.5c is 0.86602540378444 meters long.
Also, one second has dilated to 1.1547005383793 seconds.

Input the speed of the ruler in terms of c (i.e. 0.5c, 0.75c, etc.):