›› Measurement unit: megatonne

Full name: megatonne

Plural form: megatonnes

Alternate spelling: megaton

Category type: weight

Scale factor: 1000000000

›› SI unit: kilogram

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:

Convert megatonne to

The SI prefix "mega" represents a factor of 10⁶, or in exponential notation, 1E6.

So 1 megatonne = 10⁶ 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).