Conversions

Micromoles to Millimoles

Convert micromoles to millimoles (µmol to mmol). 1 µmol = 0.001 mmol. Use the calculator, formula and conversion table.

A quick reference1 µmol = 0.001 mmol
Millimoles to Micromoles
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How to convert micromoles to millimoles

Multiply the amount in micromoles by 0.001 to get millimoles. The displayed factor and results are rounded to 12 significant digits.

mmol = µmol × 0.001

Worked example

1 µmol = 0.001 mmol. Change the amount in the calculator above to use your own value.

Units and assumptions

Uses moles and decimal SI prefixes. One mole contains exactly 6.02214076 × 10²³ specified elementary entities. The entity must be specified consistently. Converting mass or gas volume into moles needs molar mass or gas conditions. Values are rounded to 12 significant figures for display.

Calculator results use floating-point arithmetic and are rounded for display. The reference table below uses up to 12 significant digits.

Micromoles to Millimoles table

Common values, rounded for display
Micromoles (µmol)Millimoles (mmol)
00
10.001
50.005
100.01
250.025
1000.1
1,0001

About this conversion

What is the formula for micromoles to millimoles?

mmol = µmol × 0.001. Multiply the amount in micromoles by 0.001 to get millimoles. The displayed factor and results are rounded to 12 significant digits.

How do I convert back to micromoles?

Use the millimoles to micromoles calculator to reverse this conversion. You can also use Swap units in the calculator above.

Can I use a different pair of units?

Choose another unit in the calculator, or open the amount of substance converter to browse all supported pairs.

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