**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:

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 (= 10^{6} g).

megatonne to tonelada [Spain]

megatonne to catty [Japan, Thailand]

megatonne to obolos [Ancient Greece]

megatonne to pound [troy]

megatonne to catty [China]

megatonne to mic

megatonne to quarter [UK]

megatonne to quarter [US]

megatonne to millier

megatonne to koyan [Malaysia]