Time Dilation Calculator
Special & General Relativity
Calculate how time slows down at high velocities (special relativity) or in strong gravitational fields (general relativity).
Calculator
About Time Dilation
Time dilation is a difference in elapsed time measured by two clocks due to relative velocity or gravitational potential.
Time slows down at high velocities
Time slows down in strong gravity
Features
- Velocity time dilation
- Gravitational time dilation
- Lorentz factor calculation
- Multiple velocity units
- Multiple time units
- Real-world examples
- High precision results
- Copy results
Real Examples
Gain ~38 μs/day due to velocity and gravity
Age ~0.007s less per 6 months
Muons live longer at 0.999c
Extreme time dilation near event horizon
Key Concepts
Time measured by moving observer
Time measured by stationary observer
Ratio of dilated to proper time
299,792,458 m/s (universal constant)
Applications
- GPS satellite corrections
- Particle physics experiments
- Space travel calculations
- Astrophysics research
- Atomic clock synchronization
- Relativity education
- Science fiction accuracy
Interesting Facts
Did You Know?
Twin Paradox: A twin traveling at high speed ages slower than their Earth-bound twin
GPS Accuracy: Without relativistic corrections, GPS would drift by ~10 km/day
Near Light Speed: At 0.999c, 1 year for you = 22.4 years on Earth
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