Kalkulator Jarak Tahun Cahaya
Konversi antara tahun cahaya, kilometer, mil, unit astronomi (AU), parsek, detik cahaya, dan menit cahaya.
Jarak kosmis
1 tahun cahaya = 9,461 triliun km. Cahaya bergerak dengan kecepatan 299.792 km/s.
The light year distance calculator converts between seven astronomical distance units: light years, kilometers, miles, astronomical units (AU), parsecs, light seconds, and light minutes. Enter a value in any unit and see all six other conversions simultaneously — essential for astronomy enthusiasts, students, and science educators.
A light year is the distance light travels in one vacuum year: approximately 9.461 trillion kilometers or 5.879 trillion miles. Light moves at exactly 299,792.458 km per second, making it the universal speed limit. For scale: sunlight takes 8.3 minutes to reach Earth (1 AU), while the nearest star Proxima Centauri is 4.24 light years away — meaning the light you see from it tonight left the star over 4 years ago.
The interactive cosmic distances table lets you click on famous celestial objects — from Proxima Centauri (4.24 ly) to the Andromeda Galaxy (2.5 million ly) — and instantly see the distances in all units. Use this alongside our Unit Converter for terrestrial measurements and Speed Calculator for earthly speed problems.
Pertanyaan yang sering diajukan
You Might Also Like