How to convert light years to femtometers
1 light year is equal to 9.460730473 × 10³⁰ femtometers, and 1 femtometer is equal to 1.057000834 × 10⁻³¹ light years. To convert, multiply by the conversion factor:
femtometers = light years × 9.460730473 × 10³⁰
femtometers = light years ÷ 1.057000834 × 10⁻³¹Example: convert 1 ly to fm: 1 × 9.460730473 × 10³⁰ = 9.460730473 × 10³⁰ fm.
Light Year to Femtometer conversion table
| Light Year (ly) | Femtometer (fm) |
|---|---|
| 0.01 ly | 9.460730473 × 10²⁸ fm |
| 0.1 ly | 9.460730473 × 10²⁹ fm |
| 1 ly | 9.460730473 × 10³⁰ fm |
| 2 ly | 1.892146095 × 10³¹ fm |
| 3 ly | 2.838219142 × 10³¹ fm |
| 5 ly | 4.730365236 × 10³¹ fm |
| 10 ly | 9.460730473 × 10³¹ fm |
| 20 ly | 1.892146095 × 10³² fm |
| 50 ly | 4.730365236 × 10³² fm |
| 100 ly | 9.460730473 × 10³² fm |
| 250 ly | 2.365182618 × 10³³ fm |
| 500 ly | 4.730365236 × 10³³ fm |
| 1,000 ly | 9.460730473 × 10³³ fm |
About the light year
A light-year is the distance light travels in a vacuum in one Julian year (365.25 days): about 9.46 trillion km. The nearest star system, Alpha Centauri, is about 4.37 light-years away.
Symbol: ly · 1 ly = 9.460730473 × 10¹⁵ m · Category: Astronomical
About the femtometer
A femtometer is 10⁻¹⁵ meters, the scale of atomic nuclei. A proton has a radius of about 0.84 fm.
Symbol: fm · 1 fm = 1 × 10⁻¹⁵ m · Category: Metric (SI)