**Full name:** gigatonne

**Plural form:** gigatonnes

**Alternate spelling:** gigaton

**Category type:** weight

**Scale factor:** 1000000000000

The SI base unit for mass is the kilogram.
The SI derived unit for weight or force is the newton.

1 kilogram is equal to 1.0E-12 gigatonne.

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

You can use this form to select from known units:

The SI prefix "giga" represents a factor of
10^{9}, or in exponential notation, 1E9.

So 1 gigatonne = 10^{9} 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 (= 10^{6} g).

gigatonne to petagram

gigatonne to quartern

gigatonne to pound-force

gigatonne to onza [Spanish]

gigatonne to gros

gigatonne to grain

gigatonne to atomic mass unit [1998]

gigatonne to uncia [Rome]

gigatonne to cental

gigatonne to crith