How many umol in 1 mmol?
The answer is 1000.

We assume you are converting between **micromole** and **millimole**.

You can view more details on each measurement unit:

umol or
mmol

The SI base unit for **amount of substance** is the mole.

1 mole is equal to 1000000 umol, or 1000 mmol.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between micromoles and millimoles.

Type in your own numbers in the form to convert the units!

You can do the reverse unit conversion from mmol to umol, or enter any two units below:

The SI prefix "micro" represents a factor of
10^{-6}, or in exponential notation, 1E-6.

So 1 micromole = 10^{-6} moles.

The definition of a mole is as follows:

The mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12; its symbol is "mol."

The SI prefix "milli" represents a factor of
10^{-3}, or in exponential notation, 1E-3.

So 1 millimole = 10^{-3} moles.

The definition of a mole is as follows:

The mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12; its symbol is "mol."

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