Micromole is 0.000001 mole units.
Micromoles to Nanomoles Converter — umol to nmol
Convert Micromole (umol) to Nanomole (nmol) using the exact conversion factor (1 micromole = 1,000 nanomole). See the formula, worked examples, and conversion table.
Micromoles to Nanomoles 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.
Nanomole is 1e-9 mole units.
Result = input x 1e-6 / 1e-9.
Amount units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Micromoles to Nanomoles
Micromole and Nanomole 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: Micromole is 0.000001 mole units, and nanomole is 1e-9 mole units.
Formula
nanomoles = micromoles × 1000
This factor comes from each unit's defined relationship to the category's base unit: 1 micromole equals 0.000001 base units, and 1 nanomole equals 1e-9 base units, so dividing one by the other gives the direct micromole-to-nanomole factor of 1000.
Simple example
1 umol × 1000 = 1,000 nmol
1 micromole = 1,000 nanomoles.
Real-world example
100 umol × 1000 = 100,000 nmol
100 micromoles = 100,000 nanomoles.
Conversion table
| Micromole (umol) | Nanomole (nmol) |
|---|---|
| 0.001 umol | 1 nmol |
| 0.01 umol | 10 nmol |
| 0.1 umol | 100 nmol |
| 1 umol | 1,000 nmol |
| 10 umol | 10,000 nmol |
| 100 umol | 100,000 nmol |
Reverse conversion: Nanomole to Micromole
1 nmol × 0.001 = 0.001 umol
1 nanomole = 0.001 micromoles.
micromoles = nanomoles × 0.001
For a page dedicated to this direction, see Nanomole to Micromole.
Understanding the Micromole (umol)
Micromole is 0.000001 mole units.
Understanding the Nanomole (nmol)
Nanomole is 1e-9 mole units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanomoles are in 1 micromole?
1 micromole equals 1,000 nanomoles, using the exact defined conversion factor rather than an estimate.
How do I convert micromole to nanomole?
Multiply the micromole value by 1000. The converter above does this instantly to whatever precision you set.
How do I convert nanomole back to micromole?
Use the reverse factor: 1 nanomole equals 0.001 micromoles. You can also use the swap control in the converter above to flip the direction instantly.
What is a micromole?
Micromole (umol) is a unit of chemistry.
What is a nanomole?
Nanomole (nmol) is a unit of chemistry.
Is the micromole to nanomole conversion exact?
Yes. Both micromole and nanomole are defined by fixed standards rather than physical artifacts, so the factor of 1000 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.