## Convert femtometre to gigalight year

 femtometer gigalight-year

 Did you mean to convert femtometre fermi to gigalight-year

How many femtometer in 1 gigalight-year? The answer is 9.454254955488E+39.
We assume you are converting between femtometre and gigalight year.
You can view more details on each measurement unit:
femtometer or gigalight-year
The SI base unit for length is the metre.
1 metre is equal to 1.0E+15 femtometer, or 1.0577248071986E-25 gigalight-year.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between femtometers and gigalight years.
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## Definition: Femtometre

The SI prefix "femto" represents a factor of 10-15, or in exponential notation, 1E-15.

So 1 femtometre = 10-15 metre.

## Definition: Gigalight-year

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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