›› Convert millimetre to gigametre


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gigameter

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›› More information from the unit converter

How many mm in 1 gigameter? The answer is 1000000000000.
We assume you are converting between millimetre and gigametre.
You can view more details on each measurement unit:
mm or gigameter
The SI base unit for length is the metre.
1 metre is equal to 1000 mm, or 1.0E-9 gigameter.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between millimetres and gigameters.
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›› Definition: Millimeter

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: Gigameter

A gigametre (American spelling: gigameter, symbol: Gm) is a unit of length equal to 10^9 metres. Its customary equivalent is 621,371 miles.


›› 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!