What is 680mm in Centimeters?

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What is 680 Millimetres (680mm) in Centimeters (cm)?

What is 680mm in cm? Convert 680 Millimetres (680mm) to Centimeters (cm) and show formula, brief history on the units and quick maths for the conversion.

Enter Millimetres to convert to Centimeters


Quick Reference for Converting Millimetres to Centimeters

Formula
cm = mm / 10
Quick Rough Maths
To get the Centimeters, divide the number of Millimetres by 10.0
Millimetres (mm) in 1 Centimetre
There are 10 Millimetres in 1 Centimetre
Centimeters (cm) in 1 Millimetre
There are 0.1 Centimeters 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.

Centimetre
/ˈsɛntɪmiːtə/
Symbol: cm
Unit System: SI

What is the Centimetre?

The centimetre is a unit of length and is a multiple of the metre; an SI derived unit. It has the symbol cm.

A centimetre is equal to 0.01m. It is also ≈ 0.3937in.

Centimetres are used in maps to scale up conversions to real world measurements.


Conversion Tables for Millimetres (mm) to Centimeters (cm)