What is 640000nm in Micrometres?

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What is 640000 Nanometres (640000nm) in Micrometres (μm)?

What is 640000nm in μm? Convert 640000 Nanometres (640000nm) to Micrometres (μm) and show formula, brief history on the units and quick maths for the conversion.

Enter Nanometres to convert to Micrometres


Quick Reference for Converting Nanometres to Micrometres

Formula
μm = nm / 1000
Quick Rough Maths
To get the Micrometres, divide the number of Nanometres by 1,000.0
Nanometres (nm) in 1 Micrometre
There are 1000 Nanometres in 1 Micrometre
Micrometres (μm) in 1 Nanometre
There are 0 Micrometres in 1 Nanometre

Unit Information

Nanometre
/ˈnanə(ʊ)ˌmiːtə/
Symbol: nm
Unit System: SI

What is the Nanometre?

The nanometre is a unit of length and is a multiple of the SI unit metre. It uses the symbol nm.

1 nm is equal to one one-billionth of a metre. (Nano is the prefix for one billionth). It is used to express dimensions on an atomic scale for example a helium atom has a radius of approximately 0.03nm.

The nanometre was previously known as the millimicrometre (or the millimicron).

Micrometre
/ˈmʌɪkrə(ʊ)ˌmiːtə/
Symbol: μm
Unit System: SI

What is the Micrometre?

The micrometre (American spelling micrometer) is a unit of length and is a multiple of the SI unit metre. It uses the symbol μm.

It represents one millionth of a metre and is also known by its previously depreciated name micron.

In the US, the term 'micron' helped distinguish the unit name from the device 'micrometer' but the International System of Units (SI) discontinued this term in favour of micrometre as the prefix system required the use of the Greek symbol 'μ' which invoked the factor x10−6.


Conversion Tables for Nanometres (nm) to Micrometres (μm)