Astronomy & Earth Science
Light Years Distance Calculator
Lets users compute and verify light years distance instantly with formula, steps and examples — no manual math.
Enter your details
light-years
Your result
Kilometres
4,01,13,36,80,00,000 km
4.24 light-years = 4.011e+13 km = 1.30 parsecs.
Parsecs
1.3 pc
Astronomical units
2,68,141.84 AU
About this calculator
A light-year is the distance light travels in a year: 9.4607 × 10¹² km, 63,241 AU, or 0.3066 parsecs. Proxima Centauri, the nearest star, is 4.24 ly away.
Frequently asked questions
Why CalcBreeze
- ✔ Verified formulas, instant recalculation
- ✔ Works on every device, no signup needed
- ✔ Save, share & export results
- ✔ 1100+ calculators across 50+ categories
- ✔ Pixel-consistent design across every tool