## ››Convert libra [ancient Rome] to gigatonne

 libra gigatonne

 Did you mean to convert libra [ancient Rome] libra [Italy] libra [metric] libra [Portugal, Spain] to gigatonne

How many libra in 1 gigatonne? The answer is 3095975232198.1.
We assume you are converting between libra [ancient Rome] and gigatonne.
You can view more details on each measurement unit:
libra or gigatonne
The SI base unit for mass is the kilogram.
1 kilogram is equal to 3.0959752321981 libra, or 1.0E-12 gigatonne.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between libra [ancient Rome] and gigatonnes.
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## ››Definition: Gigatonne

The SI prefix "giga" represents a factor of 109, or in exponential notation, 1E9.

So 1 gigatonne = 109 tonnes.

The definition of a tonne is as follows:

A tonne (also called metric ton) is a non-SI unit of mass, accepted for use with SI, defined as: 1 tonne = 1000 kg (= 106 g).

## ››Metric conversions and more

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