Time Dilation Calculator (Velocity)
Calculate time dilation effects due to relative velocity using special relativity
About this calculator
The Time Dilation Calculator (Velocity) computes how time passes differently for objects moving at high speeds relative to a stationary observer, based on Einstein's special theory of relativity. As velocity approaches the speed of light, time dilates significantly, meaning time passes slower for the moving object compared to the observer. This calculator is essential for physics students, researchers, and anyone studying relativistic effects in scenarios involving high-speed travel, particle physics, or space exploration.
How to use
Enter the velocity of the moving object as a fraction of the speed of light (e.g., 0.5 for half light speed) or in units like m/s or km/h. The calculator will compute the time dilation factor and show how much slower time passes for the moving object compared to a stationary observer.
Frequently asked questions
What is time dilation in special relativity?
Time dilation is the phenomenon where time passes slower for objects moving at high velocities relative to an observer, as predicted by Einstein's special relativity theory.
At what speeds does time dilation become noticeable?
Time dilation becomes significant at velocities above 10% of light speed (30,000 km/s). At everyday speeds, the effect is negligible but still measurable with precise instruments.
How is the time dilation factor calculated?
The time dilation factor is calculated using the Lorentz factor: γ = 1/√(1 - v²/c²), where v is velocity and c is the speed of light.