›› Measurement unit: light second

Full name: light second

Plural form: light seconds

Alternate spelling: lightsecond

Category type: length

Scale factor: 299792458


›› SI unit: metre

The SI base unit for length is the metre.
1 metre is equal to 3.3356409519815E-9 light second.


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›› Definition: Light-second

A light-second is a unit of length. It is defined as the distance light travels in an absolute vacuum in one second or 299,792,458 meters. Note that this value is considered exact, since the meter is actually (as of 1983) defined in terms of the light second. It is just over 186,282 miles and almost 109 feet.


›› Sample conversions: light second

light second to pace [great]
light second to mark twain
light second to Scots mile
light second to pes
light second to range
light second to reed [Israel]
light second to mil
light second to point [Adobe]
light second to shaftment
light second to myriametre