Astronomical Distance Calculator
Visualizing distances using light-speed-based units (c = 1)
Concept Explanation
This calculator demonstrates a unit system where the speed of light in vacuum (c) is defined as exactly 1 unit. In this system:
- Distance = Light travel time × Speed of light
- Since c = 1, distance numerically equals travel time
- Example: 500 seconds of light travel = 500 units
This is analogous to light-year measurements, but with customizable units.
Interactive Calculator
0:00
8:20
20:00
Calculation Result
In a system where c = 1 unit:
Light travel time: 500 seconds (8:20)
Distance: 500 units
Distance = Speed of Light × Time = 1 × Time = Time
Astronomical Comparisons
The most distant object is the one with the longest light travel time.



