Convert miles to light-years
1 mi = 0.000000000000170107795023 ly — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
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Show this value in all 50 length units
- Gigameters Gm 0.000 001 609 344
- Megameters Mm 0.001 609 344
- Kilometers km 1.609 344
- Hectometers hm 16.093 44
- Decameters dam 160.9344
- Meters m 1609.344
- Decimeters dm 16 093.44
- Centimeters cm 160 934.4
- Millimeters mm 1 609 344
- Micrometers µm 1 609 344 000
- Nanometers nm 1 609 344 000 000
- Picometers pm 1 609 344 000 000 000
- Femtometers fm 1.609344e+18
- Inches in 63 360
- Feet ft 5280
- Yards yd 1760
- Miles mi 1
- Nautical miles nmi 0.868 976 241 901
- Thous thou 63 360 000
- Hands hh 15 840
- Links li 8000
- Spans span 7040
- Cubits cubit 3520
- Ells ell 1408
- Fathoms ftm 880
- Rods rd 320
- Chains ch 80
- Furlongs fur 8
- Leagues lea 0.333 333 333 333
- Barleycorns barleycorn 190 080
- US survey feet ft (US) 5279.989 44
- US survey miles mi (US) 0.999 998
- Ångströms Å 16 093 440 000 000
- Microns µ 1 609 344 000
- Bohr radiuss a₀ 30 412 194 023 700
- Planck lengths ℓₚ 9.95724065819e+37
- Astronomical units au 1.07578001777e-8
- Light-years ly 1.70107795023e-13
- Light-seconds ls 0.000 005 368 193 752 23
- Light-minutes lmin 8.94698958704e-8
- Parsecs pc 5.21552870479e-14
- Kiloparsecs kpc 5.21552870479e-17
- Megaparsecs Mpc 5.21552870479e-20
- Solar radiuss R☉ 0.000 002 313 272 962 48
- Earth radiuss R🜨 0.000 252 604 614 66
- Point (DTP)s pt 4 561 920
- Picas pc 380 160
- Scandinavian miles mil 0.160 934 4
- Versts вер 1.508 571 428 57
- Lis 里 3.218 688
Every row is Mile (mi) converted through the meter, in exact rational arithmetic.
How to convert miles to light-years
Multiply the number of miles by 0.000000000000170107795023 to get light-years.
Mile: The statute mile: 5280 international feet, exactly 1609.344 m.
Light-year: Light travelling for one Julian year (365.25 days) in vacuum — exact, since both inputs are defined values.
Mile to Light-year conversion table
| Miles (mi) | Light-years (ly) |
|---|---|
| 1 mi | 1.701078e-13 |
| 2 mi | 3.4021559e-13 |
| 3 mi | 5.1032339e-13 |
| 5 mi | 8.5053898e-13 |
| 10 mi | 1.701078e-12 |
| 20 mi | 3.4021559e-12 |
| 25 mi | 4.2526949e-12 |
| 50 mi | 8.5053898e-12 |
| 100 mi | 1.701078e-11 |
| 250 mi | 4.2526949e-11 |
| 500 mi | 8.5053898e-11 |
| 1000 mi | 1.701078e-10 |
Light-year to Mile conversion table
| Light-years (ly) | Miles (mi) |
|---|---|
| 1 ly | 5 878 625 400 000 |
| 2 ly | 11 757 251 000 000 |
| 3 ly | 17 635 876 000 000 |
| 5 ly | 29 393 127 000 000 |
| 10 ly | 58 786 254 000 000 |
| 20 ly | 117 572 510 000 000 |
| 25 ly | 146 965 630 000 000 |
| 50 ly | 293 931 270 000 000 |
| 100 ly | 587 862 540 000 000 |
| 250 ly | 1 469 656 300 000 000 |
| 500 ly | 2 939 312 700 000 000 |
| 1000 ly | 5 878 625 400 000 000 |
Frequently asked
How many light-years are in a mile?
One mile equals 1.70107795e-13 light-years (mi → ly). That figure is exact, not rounded.
How do you convert miles to light-years?
Multiply the number of miles by 0.000000000000170107795023 to get light-years.
What is 1 ly in miles?
One light-year is 5878625373000 miles.
What is 10 mi in ly?
10 mi = 1.701078e-12 ly.
What exactly is a mile?
The statute mile: 5280 international feet, exactly 1609.344 m.
What exactly is a light-year?
Light travelling for one Julian year (365.25 days) in vacuum — exact, since both inputs are defined values.