**Full name:** gigalight year

**Plural form:** gigalight years

**Symbol:** Gly

**Alternate spelling:** gigalight-years

**Category type:** length

**Scale factor:** 9.454254955488E+24

The SI base unit for length is the metre.

1 metre is equal to 1.0577248071986E-25 gigalight-year.

Valid units must be of the **length** type.

You can use this form to select from known units:

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.

gigalight-year to gigalight year

gigalight-year to span

gigalight-year to step

gigalight-year to arpent [Canada]

gigalight-year to mile

gigalight-year to league [UK]

gigalight-year to gigametre

gigalight-year to bicron

gigalight-year to lap [old]

gigalight-year to pie [Texas]