Light-Time & Distance Calculators
Real astronomical distances and the invariant speed of light (299,792.458 km/s), computed instantly.
🌌 Interstellar Light-Time & Distance Engine
Distance: 1.000 AU (149,597,871 km)
Light Travel Time: 8 min, 19 sec
Light takes roughly 8 minutes and 19 seconds to cross the ~1 AU boundary between the Sun and Earth.
🔭 Custom Astrometric Grid Coordinate Calculator
Kilometers: 149,597,871 km
Astronomical Units: 1 AU
Light-Years: 1.581e-5 ly
Parsecs: 4.848e-6 pc
Light Travel Time: 8 min, 19 sec