Mass per volume density.
Picograms per Gallon to Picograms per Liter Converter — pg/gal to pg/L
Convert Picogram per Gallon (pg/gal) to Picogram per Liter (pg/L) using the exact conversion factor (1 picogram per gallon = 0.2641720524 picogram per liter). See the formula, worked examples, and conversion table.
Picograms 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-13 / 1e-12.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Picograms per Gallon to Picograms per Liter
Picogram 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 = picograms per gallon × 0.264172052358
This factor comes from each unit's defined relationship to the category's base unit: 1 picogram per gallon equals 2.641721e-13 base units, and 1 picogram per liter equals 1e-12 base units, so dividing one by the other gives the direct picogram per gallon-to-picogram per liter factor of 0.264172052358.
Simple example
1 pg/gal × 0.2641720524 = 0.2641720524 pg/L
1 picogram per gallon = 0.2641720524 picograms per liter.
Real-world example
1,000 pg/gal × 0.2641720524 = 264.1720524 pg/L
1,000 picograms per gallon = 264.1720524 picograms per liter.
Conversion table
| Picogram per Gallon (pg/gal) | Picogram per Liter (pg/L) |
|---|---|
| 0.1 pg/gal | 0.0264172052 pg/L |
| 1 pg/gal | 0.2641720524 pg/L |
| 10 pg/gal | 2.641720524 pg/L |
| 100 pg/gal | 26.41720524 pg/L |
| 1,000 pg/gal | 264.1720524 pg/L |
| 10,000 pg/gal | 2,641.720524 pg/L |
Reverse conversion: Picogram per Liter to Picogram per Gallon
0.2641720524 pg/L × 3.785411784 = 1 pg/gal
0.2641720524 picograms per liter = 1 picograms per gallon.
picograms per gallon = picograms per liter × 3.785411784
For a page dedicated to this direction, see Picogram per Liter to Picogram per Gallon.
Understanding the Picogram per Gallon (pg/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 picogram per gallon?
1 picogram per gallon equals 0.2641720524 picograms per liter, using the exact defined conversion factor rather than an estimate.
How do I convert picogram per gallon to picogram per liter?
Multiply the picogram per gallon value by 0.2641720524. The converter above does this instantly to whatever precision you set.
How do I convert picogram per liter back to picogram per gallon?
Use the reverse factor: 1 picogram per liter equals 3.785411784 picograms per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a picogram per gallon?
Picogram per Gallon (pg/gal) is a unit of density.
What is a picogram per liter?
Picogram per Liter (pg/L) is a unit of density.
Is the picogram per gallon to picogram per liter conversion exact?
Yes. Both picogram per gallon and picogram per liter are defined by fixed standards rather than physical artifacts, so the factor of 0.2641720524 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.