Convert light-years to meters

1 ly = 9460730472580000 m — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.

9 460 730 472 580 000m
≈ Rounded to 12 s.f. 1 ly ≈ 9 460 730 472 580 000 m
Exact decimal: 9460730472580800
More converter tools

Readable results

Ranges, ± tolerances, feet/inches and clock durations work in the value field.

Unit picker

Export this result

1 ly = 9460730472580000 m
Show this value in all 50 length units
  • Gigameters Gm 9 460 730.472 58
  • Megameters Mm 9 460 730 472.58
  • Kilometers km 9 460 730 472 580
  • Hectometers hm 94 607 304 725 800
  • Decameters dam 946 073 047 258 000
  • Meters m 9 460 730 472 580 000
  • Decimeters dm 9.46073047258e+16
  • Centimeters cm 9.46073047258e+17
  • Millimeters mm 9.46073047258e+18
  • Micrometers µm 9.46073047258e+21
  • Nanometers nm 9.46073047258e+24
  • Picometers pm 9.46073047258e+27
  • Femtometers fm 9.46073047258e+30
  • Inches in 3.72469703645e+17
  • Feet ft 3.10391419704e+16
  • Yards yd 1.03463806568e+16
  • Miles mi 5 878 625 373 180
  • Nautical miles nmi 5 108 385 784 330
  • Thous thou 3.72469703645e+20
  • Hands hh 9.31174259112e+16
  • Links li 4.70290029855e+16
  • Spans span 4.13855226272e+16
  • Cubits cubit 2.06927613136e+16
  • Ells ell 8 277 104 525 440 000
  • Fathoms ftm 5 173 190 328 400 000
  • Rods rd 1 881 160 119 420 000
  • Chains ch 470 290 029 855 000
  • Furlongs fur 47 029 002 985 500
  • Leagues lea 1 959 541 791 060
  • Barleycorns barleycorn 1.11740911093e+18
  • US survey feet ft (US) 3.10390798921e+16
  • US survey miles mi (US) 5 878 613 615 930
  • Ångströms Å 9.46073047258e+25
  • Microns µ 9.46073047258e+21
  • Bohr radiuss a₀ 1.78781895442e+26
  • Planck lengths ℓₚ 5.85348875801e+50
  • Astronomical units au 63 241.077 084 3
  • Light-years ly 1
  • Light-seconds ls 31 557 600
  • Light-minutes lmin 525 960
  • Parsecs pc 0.306 601 393 786
  • Kiloparsecs kpc 0.000 306 601 393 786
  • Megaparsecs Mpc 0.000 000 306 601 393 786
  • Solar radiuss R☉ 13 598 865.1324
  • Earth radiuss R🜨 1 484 967 897.12
  • Point (DTP)s pt 2.68178186624e+19
  • Picas pc 2.23481822187e+18
  • Scandinavian miles mil 946 073 047 258
  • Versts вер 8 868 326 277 260
  • Lis 里 18 921 460 945 200

Every row is Light-year (ly) converted through the meter, in exact rational arithmetic.

How to convert light-years to meters

Multiply the number of light-years by 9460730472580000 to get meters.

The exact factor is 9460730472580800 .

Light-year: Light travelling for one Julian year (365.25 days) in vacuum — exact, since both inputs are defined values.

Light-year to Meter conversion table

Light-years (ly) Meters (m)
1 ly 9 460 730 500 000 000
2 ly 1.8921461e+16
3 ly 2.8382191e+16
5 ly 4.7303652e+16
10 ly 9.4607305e+16
20 ly 1.8921461e+17
25 ly 2.3651826e+17
50 ly 4.7303652e+17
100 ly 9.4607305e+17
250 ly 2.3651826e+18
500 ly 4.7303652e+18
1000 ly 9.4607305e+18

Meter to Light-year conversion table

Meters (m) Light-years (ly)
1 m 1.0570008e-16
2 m 2.1140017e-16
3 m 3.1710025e-16
5 m 5.2850042e-16
10 m 1.0570008e-15
20 m 2.1140017e-15
25 m 2.6425021e-15
50 m 5.2850042e-15
100 m 1.0570008e-14
250 m 2.6425021e-14
500 m 5.2850042e-14
1000 m 1.0570008e-13

Frequently asked

How many meters are in a light-year?

One light-year equals 9460730473000000 meters (ly → m). That figure is exact, not rounded.

How do you convert light-years to meters?

Multiply the number of light-years by 9460730472580000 to get meters.

What is 1 m in light-years?

One meter is 1.057000834e-16 light-years.

What is 10 ly in m?

10 ly = 9.4607305e+16 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.

Related conversions

Settings

Theme

System follows your operating system and changes with it.

Text size
High contrast

Maximises text and border contrast and removes the grid background.

Graph-paper background

Round to
Notation
Thousands separators
Decimal mark
Nearest fraction

Shows the result as the nearest tape-measure fraction, with the error it costs.


Accessibility & interaction
Reduce motion Stops interface animations even when the operating system does not.
Underline links Keeps links visually distinct without relying on colour.
Larger touch targets Makes buttons and form controls easier to tap.
Shorter reading lines Limits article width for easier scanning.
Monochrome display Removes colour as an information cue.
Always-visible focus Makes the keyboard focus ring persistent and stronger.
Verbose screen-reader results Announces the complete conversion equation.
Sticky action bars Keeps converter and calculator actions within reach.
Select values on focus Replaces a value immediately when you start typing.
Left-handed mobile layout Moves key mobile actions toward the left thumb.

Your data

Settings, recent conversions and favourites live in this browser only. Nothing is sent anywhere.

Offline library