Mass per volume density.
Picograms per Liter to Nanograms per Milliliter Converter — pg/L to ng/mL
Convert Picogram per Liter (pg/L) to Nanogram per Milliliter (ng/mL) using the exact conversion factor (1 picogram per liter = 1e-6 nanogram per milliliter). See the formula, worked examples, and conversion table.
Picograms per Liter to Nanograms 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-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 Nanograms per Milliliter
Picogram per Liter and Nanogram 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
nanograms per milliliter = picograms per liter × 1e-6
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 nanogram per milliliter equals 0.000001 base units, so dividing one by the other gives the direct picogram per liter-to-nanogram per milliliter factor of 1e-6.
Simple example
1 pg/L × 1e-6 = 1e-6 ng/mL
1 picogram per liter = 1e-6 nanograms per milliliter.
Real-world example
1,000 pg/L × 1e-6 = 0.001 ng/mL
1,000 picograms per liter = 0.001 nanograms per milliliter.
Conversion table
| Picogram per Liter (pg/L) | Nanogram per Milliliter (ng/mL) |
|---|---|
| 0.1 pg/L | 1e-7 ng/mL |
| 1 pg/L | 1e-6 ng/mL |
| 10 pg/L | 0.00001 ng/mL |
| 100 pg/L | 0.0001 ng/mL |
| 1,000 pg/L | 0.001 ng/mL |
| 10,000 pg/L | 0.01 ng/mL |
Reverse conversion: Nanogram per Milliliter to Picogram per Liter
0.000001 ng/mL × 1000000 = 1 pg/L
0.000001 nanograms per milliliter = 1 picograms per liter.
picograms per liter = nanograms per milliliter × 1000000
For a page dedicated to this direction, see Nanogram per Milliliter to Picogram per Liter.
Understanding the Picogram per Liter (pg/L)
Mass per volume density.
Understanding the Nanogram per Milliliter (ng/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanograms per milliliter are in 1 picogram per liter?
1 picogram per liter equals 1e-6 nanograms per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert picogram per liter to nanogram per milliliter?
Multiply the picogram per liter value by 1e-6. The converter above does this instantly to whatever precision you set.
How do I convert nanogram per milliliter back to picogram per liter?
Use the reverse factor: 1 nanogram per milliliter 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 nanogram per milliliter?
Nanogram per Milliliter (ng/mL) is a unit of density.
Is the picogram per liter to nanogram per milliliter conversion exact?
Yes. Both picogram per liter and nanogram per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 1e-6 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.