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Micromoles to moles conversion and definition

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A micromole is a unit of measure defined as 10-6 (one-millionth) of a mole. The symbol for micromole is commonly umol or μmol.

A mole is defined as approximately 6.022140857 x 1023, so therefore a micromole can also be defined as:

1 μmol = 6.022140857 x 1017

Micromoles are commonly used to count the number of photons in a plant grow light system.

Want to convert micromoles to moles? Use the calculator below:

Micromoles (μmol) to moles (mol) Calculator


Micromoles (μmol):


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