How many km in 1 gigalight year?
The answer is 9.45425495549E+21.
We assume you are converting between kilometre and gigalight year.
You can view more details on each measurement unit:
km or gigalight year
The SI base unit for length is the metre.
1 metre is equal to 0.001 km, or 1.0577248072E-25 gigalight year.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between kilometres and gigalight years.
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A kilometre (American spelling: kilometer, symbol: km) is a unit of length equal to 1000 metres (from the Greek words khilia = thousand and metro = count/measure). It is approximately equal to 0.621 miles, 1094 yards or 3281 feet.
One gigalight-year, abbreviation "Gly", is one billion light-years — one of the largest distance measures used. One gigalight-year equals 306.601 million parsecs, or roughly one-thirteenth the distance to the horizon of the observable universe (dictated by the cosmic background radiation). Gigalight-years are typically used to measure distances to supergalactic structures, such as clusters of quasars or the Great Wall.
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