Mass per volume density.
Micrograms per Liter to Centigrams per Milliliter Converter — ug/L to cg/mL
Convert Microgram per Liter (ug/L) to Centigram per Milliliter (cg/mL) using the exact conversion factor (1 microgram per liter = 1e-7 centigram per milliliter). See the formula, worked examples, and conversion table.
Micrograms per Liter to Centigrams per Milliliter converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 1e-6 / 10.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Micrograms per Liter to Centigrams per Milliliter
Microgram per Liter and Centigram per Milliliter both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
centigrams per milliliter = micrograms per liter × 1e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 microgram per liter equals 0.000001 base units, and 1 centigram per milliliter equals 10 base units, so dividing one by the other gives the direct microgram per liter-to-centigram per milliliter factor of 1e-7.
Simple example
1 ug/L × 1e-7 = 1e-7 cg/mL
1 microgram per liter = 1e-7 centigrams per milliliter.
Real-world example
1,000 ug/L × 1e-7 = 0.0001 cg/mL
1,000 micrograms per liter = 0.0001 centigrams per milliliter.
Conversion table
| Microgram per Liter (ug/L) | Centigram per Milliliter (cg/mL) |
|---|---|
| 0.1 ug/L | 1e-8 cg/mL |
| 1 ug/L | 1e-7 cg/mL |
| 10 ug/L | 1e-6 cg/mL |
| 100 ug/L | 0.00001 cg/mL |
| 1,000 ug/L | 0.0001 cg/mL |
| 10,000 ug/L | 0.001 cg/mL |
Reverse conversion: Centigram per Milliliter to Microgram per Liter
1e-7 cg/mL × 10000000 = 1 ug/L
1e-7 centigrams per milliliter = 1 micrograms per liter.
micrograms per liter = centigrams per milliliter × 10000000
For a page dedicated to this direction, see Centigram per Milliliter to Microgram per Liter.
Understanding the Microgram per Liter (ug/L)
Mass per volume density.
Understanding the Centigram per Milliliter (cg/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many centigrams per milliliter are in 1 microgram per liter?
1 microgram per liter equals 1e-7 centigrams per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per liter to centigram per milliliter?
Multiply the microgram per liter value by 1e-7. The converter above does this instantly to whatever precision you set.
How do I convert centigram per milliliter back to microgram per liter?
Use the reverse factor: 1 centigram per milliliter equals 10,000,000 micrograms per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a microgram per liter?
Microgram per Liter (ug/L) is a unit of density.
What is a centigram per milliliter?
Centigram per Milliliter (cg/mL) is a unit of density.
Is the microgram per liter to centigram per milliliter conversion exact?
Yes. Both microgram per liter and centigram per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 1e-7 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.