Mass per volume density.
Picograms per Liter to Micrograms per Liter Converter — pg/L to ug/L
Convert Picogram per Liter (pg/L) to Microgram per Liter (ug/L) using the exact conversion factor (1 picogram per liter = 0.000001 microgram per liter). See the formula, worked examples, and conversion table.
Picograms per Liter to Micrograms per Liter 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-12 / 1e-6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Picograms per Liter to Micrograms per Liter
Picogram per Liter and Microgram per Liter 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
micrograms per liter = picograms per liter × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 picogram per liter equals 1e-12 base units, and 1 microgram per liter equals 0.000001 base units, so dividing one by the other gives the direct picogram per liter-to-microgram per liter factor of 0.000001.
Simple example
1 pg/L × 0.000001 = 0.000001 ug/L
1 picogram per liter = 0.000001 micrograms per liter.
Real-world example
1,000 pg/L × 0.000001 = 0.001 ug/L
1,000 picograms per liter = 0.001 micrograms per liter.
Conversion table
| Picogram per Liter (pg/L) | Microgram per Liter (ug/L) |
|---|---|
| 0.1 pg/L | 1e-7 ug/L |
| 1 pg/L | 0.000001 ug/L |
| 10 pg/L | 0.00001 ug/L |
| 100 pg/L | 0.0001 ug/L |
| 1,000 pg/L | 0.001 ug/L |
| 10,000 pg/L | 0.01 ug/L |
Reverse conversion: Microgram per Liter to Picogram per Liter
0.000001 ug/L × 1000000 = 1 pg/L
0.000001 micrograms per liter = 1 picogram per liter.
picograms per liter = micrograms per liter × 1000000
For a page dedicated to this direction, see Microgram per Liter to Picogram per Liter.
Understanding the Picogram per Liter (pg/L)
Mass per volume density.
Understanding the Microgram per Liter (ug/L)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per liter are in 1 picogram per liter?
1 picogram per liter equals 0.000001 micrograms per liter, using the exact defined conversion factor rather than an estimate.
How do I convert picogram per liter to microgram per liter?
Multiply the picogram per liter value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert microgram per liter back to picogram per liter?
Use the reverse factor: 1 microgram per liter equals 1,000,000 picograms per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a picogram per liter?
Picogram per Liter (pg/L) is a unit of density.
What is a microgram per liter?
Microgram per Liter (ug/L) is a unit of density.
Is the picogram per liter to microgram per liter conversion exact?
Yes. Both picogram per liter and microgram per liter are defined by fixed standards rather than physical artifacts, so the factor of 0.000001 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.