How many mm in 1 gigalight-year?
The answer is 9.454254955488E+27.
We assume you are converting between millimetre and gigalight year.
You can view more details on each measurement unit: mm or
gigalight-year
The SI base unit for length is the metre.
1 metre is equal to 1000 mm, 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 millimetres and gigalight years.
Type in your own numbers in the form to convert the units!

››Want other units?

You can do the reverse unit conversion from
gigalight-year to mm, or enter any two units below:

A millimetre (American spelling: millimeter, symbol mm) is one thousandth of a metre, which is the International System of Units (SI) base unit of length. The millimetre is part of a metric system. A corresponding unit of area is the square millimetre and a corresponding unit of volume is the cubic millimetre.

››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.

››Metric conversions and more

ConvertUnits.com provides an online
conversion calculator for all types of measurement units.
You can find metric conversion tables for SI units, as well
as English units, currency, and other data. Type in unit
symbols, abbreviations, or full names for units of length,
area, mass, pressure, and other types. Examples include mm,
inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm,
metres squared, grams, moles, feet per second, and many more!