Time Dilation Calculator
Free calculate relativistic time dilation using special relativity. determine time dilation from velocity and compare proper time vs dilated time for moving objects.
Input Parameters
Time in the rest frame
Velocity of moving frame
Results
Enter proper time and velocity to calculate time dilation
Time Dilation Formula (Special Relativity)
Formula
t = t₀ / √(1 - v²/c²)
Where:
- • t = dilated time (observed time)
- • t₀ = proper time (rest frame)
- • v = relative velocity
- • c = speed of light (299,792,458 m/s)
Lorentz Factor
γ = 1 / √(1 - v²/c²)
Time dilation factor
Examples
- • 0.1c: γ ≈ 1.005
- • 0.5c: γ ≈ 1.155
- • 0.9c: γ ≈ 2.294
- • 0.99c: γ ≈ 7.089