Nanomole is 1e-9 mole units.
Nanomoles to Micromoles Converter — nmol to umol
Convert Nanomole (nmol) to Micromole (umol) using the exact conversion factor (1 nanomole = 0.001 micromole). See the formula, worked examples, and conversion table.
Nanomoles to Micromoles converter
Converter
Chemistry Converter
Convert concentration, molarity, amount, and laboratory scientific units by compatible family.
Context values
Some unit families need one extra value for a physically accurate result.
Micromole is 0.000001 mole units.
Result = input x 1e-9 / 1e-6.
Amount units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Nanomoles to Micromoles
Nanomole and Micromole both measure mass concentration — how much of a substance is dissolved or dispersed in a given volume — a core calculation for preparing lab solutions, checking water quality against a regulatory limit, or formulating a pharmaceutical dose. Specifically: Nanomole is 1e-9 mole units, and micromole is 0.000001 mole units.
Formula
micromoles = nanomoles × 0.001
This factor comes from each unit's defined relationship to the category's base unit: 1 nanomole equals 1e-9 base units, and 1 micromole equals 0.000001 base units, so dividing one by the other gives the direct nanomole-to-micromole factor of 0.001.
Simple example
1 nmol × 0.001 = 0.001 umol
1 nanomole = 0.001 micromoles.
Real-world example
100 nmol × 0.001 = 0.1 umol
100 nanomoles = 0.1 micromoles.
Conversion table
| Nanomole (nmol) | Micromole (umol) |
|---|---|
| 0.001 nmol | 0.000001 umol |
| 0.01 nmol | 0.00001 umol |
| 0.1 nmol | 0.0001 umol |
| 1 nmol | 0.001 umol |
| 10 nmol | 0.01 umol |
| 100 nmol | 0.1 umol |
Reverse conversion: Micromole to Nanomole
0.001 umol × 1000 = 1 nmol
0.001 micromoles = 1 nanomole.
nanomoles = micromoles × 1000
For a page dedicated to this direction, see Micromole to Nanomole.
Understanding the Nanomole (nmol)
Nanomole is 1e-9 mole units.
Understanding the Micromole (umol)
Micromole is 0.000001 mole units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micromoles are in 1 nanomole?
1 nanomole equals 0.001 micromoles, using the exact defined conversion factor rather than an estimate.
How do I convert nanomole to micromole?
Multiply the nanomole value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert micromole back to nanomole?
Use the reverse factor: 1 micromole equals 1,000 nanomoles. You can also use the swap control in the converter above to flip the direction instantly.
What is a nanomole?
Nanomole (nmol) is a unit of chemistry.
What is a micromole?
Micromole (umol) is a unit of chemistry.
Is the nanomole to micromole conversion exact?
Yes. Both nanomole and micromole are defined by fixed standards rather than physical artifacts, so the factor of 0.001 used above is exact to as many digits as you choose to display.
What's the difference between mass concentration and molarity?
Mass concentration expresses how much mass of a substance is present per unit volume (for example, grams per liter). Molarity expresses the amount in moles per liter instead, which accounts for the substance's molecular weight. This category converts mass-concentration units.