**Full name:** megatonne

**Plural form:** megatonnes

**Alternate spelling:** megaton

**Category type:** weight

**Scale factor:** 1000000000

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-9 megatonne.

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

You can use this form to select from known units:

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The SI prefix "mega" represents a factor of
10^{6}, or in exponential notation, 1E6.

So 1 megatonne = 10^{6} 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).

megatonne to kati [Japan]

megatonne to calorie [burned]

megatonne to marco [Spanish]

megatonne to as [Northern Europe]

megatonne to keel [coal]

megatonne to talent [Hebrew]

megatonne to kiloton [short, US]

megatonne to picogram

megatonne to atomic mass unit [1960]