Mass per volume density.
Nanograms per Gallon to Picograms per Liter Converter — ng/gal to pg/L
Convert Nanogram per Gallon (ng/gal) to Picogram per Liter (pg/L) using the exact conversion factor (1 nanogram per gallon = 264.1720524 picogram per liter). See the formula, worked examples, and conversion table.
Nanograms per Gallon to Picograms 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 2.64172052e-10 / 1e-12.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Nanograms per Gallon to Picograms per Liter
Nanogram per Gallon and Picogram 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
picograms per liter = nanograms per gallon × 264.172052358
This factor comes from each unit's defined relationship to the category's base unit: 1 nanogram per gallon equals 2.641721e-10 base units, and 1 picogram per liter equals 1e-12 base units, so dividing one by the other gives the direct nanogram per gallon-to-picogram per liter factor of 264.172052358.
Simple example
1 ng/gal × 264.1720524 = 264.1720524 pg/L
1 nanogram per gallon = 264.1720524 picograms per liter.
Real-world example
1,000 ng/gal × 264.1720524 = 264,172.0524 pg/L
1,000 nanograms per gallon = 264,172.0524 picograms per liter.
Conversion table
| Nanogram per Gallon (ng/gal) | Picogram per Liter (pg/L) |
|---|---|
| 0.1 ng/gal | 26.41720524 pg/L |
| 1 ng/gal | 264.1720524 pg/L |
| 10 ng/gal | 2,641.720524 pg/L |
| 100 ng/gal | 26,417.20524 pg/L |
| 1,000 ng/gal | 264,172.0524 pg/L |
| 10,000 ng/gal | 2,641,720.524 pg/L |
Reverse conversion: Picogram per Liter to Nanogram per Gallon
264.1720524 pg/L × 0.003785411784 = 1 ng/gal
264.1720524 picograms per liter = 1 nanograms per gallon.
nanograms per gallon = picograms per liter × 0.003785411784
For a page dedicated to this direction, see Picogram per Liter to Nanogram per Gallon.
Understanding the Nanogram per Gallon (ng/gal)
Mass per volume density.
Understanding the Picogram per Liter (pg/L)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many picograms per liter are in 1 nanogram per gallon?
1 nanogram per gallon equals 264.1720524 picograms per liter, using the exact defined conversion factor rather than an estimate.
How do I convert nanogram per gallon to picogram per liter?
Multiply the nanogram per gallon value by 264.1720524. The converter above does this instantly to whatever precision you set.
How do I convert picogram per liter back to nanogram per gallon?
Use the reverse factor: 1 picogram per liter equals 0.0037854118 nanograms per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a nanogram per gallon?
Nanogram per Gallon (ng/gal) is a unit of density.
What is a picogram per liter?
Picogram per Liter (pg/L) is a unit of density.
Is the nanogram per gallon to picogram per liter conversion exact?
Yes. Both nanogram per gallon and picogram per liter are defined by fixed standards rather than physical artifacts, so the factor of 264.1720524 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.