Convert Millimetres (mm) to Astronomical Units (AU) | mm in AU

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Let's convert Millimetres (mm) to Astronomical Units (AU)

This quick and easy calculator will convert Millimetres (mm) to Astronomical Units (AU) and show formula, brief history on the units and quick maths for the conversion.

Enter Millimetres to convert to Astronomical Units


Quick Reference for Converting Millimetres to Astronomical Units

Formula
AU = mm / 1.49598E+14
Quick Rough Maths
To get the Astronomical Units, divide the number of Millimetres by 149.6 trillion
Millimetres (mm) in 1 Astronomical Unit
There are 1.49598E+14 Millimetres in 1 Astronomical Unit
Astronomical Units (AU) in 1 Millimetre
There are 0 Astronomical Units in 1 Millimetre

Unit Information

Millimetre
/ˈmɪlɪmiːtə/
Symbol: mm
Unit System: SI

What is the Millimetre?

The millimetre (American spelling millimeter) is a unit of length and is a multiple of the SI unit metre. It uses the symbol mm.

There are 1000 mm in 1 m and 10 mm in 1 cm. From this one can derive that there are 0.03937 in.

The millimetre is sometimes verbally abbreviated to 'mil' - which can cause confusion in the US as there is a unit there that means thousandth of an inch.

Astronomical Unit
/astrəˈnɒmɪk(ə)l ˈjuːnɪt/
Symbol: AU
Unit System: Astronomical system of units

What is the Astronomical Unit?

The astronomical unit is a unit of length and is used in the Astronomical system of units and denoted by the symbol au.

It represents the average distance between the Earth and the Sun which is approximately 150 million kilometres (or 93 million miles).

It's used mostly to express distances within our Solar System.


Conversion Tables for Millimetres (mm) to Astronomical Units (AU)