Length & distance
-1 light-year
- Length & distance
- ly
- Astronomical
-1 light-year is a measurement of length & distance. That is -9.46073047 × 10^15 metres, or -9,460,730,472,580.8 kilometres. Below it is converted into all 28 units Nerdulator knows for length & distance.
Common conversions
metres-9.46073047 × 10^15 m
kilometres-9,460,730,472,580.8 km
centimetres-9.46073047 × 10^17 cm
millimetres-9.46073047 × 10^18 mm
inches-3.72469704 × 10^17 in
nautical miles-5,108,385,784,330.89 nmi
Every other unit of length & distance
micrometres-9.46073047 × 10^21 µm
nanometres-9.46073047 × 10^24 nm
picometres-9.46073047 × 10^27 pm
decimetres-9.46073047 × 10^16 dm
furlongs-47,029,002,985,468.9 fur
chains-470,290,029,854,689 ch
fathoms-5.17319033 × 10^15 ftm
leagues-1,959,541,791,061.2 lea
ångströms-9.46073047 × 10^25 Å
points-2.68178187 × 10^19 pt
astronomical units-63,241.07708427 au
parsecs-0.30660139 pc-parsec
CSS pixels-3.57570915 × 10^19 px
quarter-millimetres-3.78429219 × 10^19 Q
About this quantity
CategoryLength & distance
Unitlight-year (ly)
SystemAstronomical
In metres (the base unit)-9.46073047 × 10^15 m
Definition1 light-year = 9.46073047 × 10^15 metreexact by definition
Double-2 light-years
Half-0.5 light-years
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Nearby quantities
The same value in other units
Focused conversions
Just the number
Nerdulate something else
Nothing in mind? Surprise me · today’s page