Mass per volume density.
Grams per Gallon to Nanograms per Liter Converter — g/gal to ng/L
Convert Gram per Gallon (g/gal) to Nanogram per Liter (ng/L) using the exact conversion factor (1 gram per gallon = 264,172,052.4 nanogram per liter). See the formula, worked examples, and conversion table.
Grams per Gallon to Nanograms 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 0.2641720524 / 1e-9.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Gallon to Nanograms per Liter
Gram per Gallon and Nanogram 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
nanograms per liter = grams per gallon × 264172052.358
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per gallon equals 0.264172052358 base units, and 1 nanogram per liter equals 1e-9 base units, so dividing one by the other gives the direct gram per gallon-to-nanogram per liter factor of 264172052.358.
Simple example
1 g/gal × 264172052.4 = 264,172,052.4 ng/L
1 gram per gallon = 264,172,052.4 nanograms per liter.
Real-world example
1,000 g/gal × 264172052.4 = 264,172,052,400 ng/L
1,000 grams per gallon = 264,172,052,400 nanograms per liter.
Conversion table
| Gram per Gallon (g/gal) | Nanogram per Liter (ng/L) |
|---|---|
| 0.1 g/gal | 26,417,205.24 ng/L |
| 1 g/gal | 264,172,052.4 ng/L |
| 10 g/gal | 2,641,720,524 ng/L |
| 100 g/gal | 26,417,205,240 ng/L |
| 1,000 g/gal | 264,172,052,400 ng/L |
| 10,000 g/gal | 2.641721e+12 ng/L |
Reverse conversion: Nanogram per Liter to Gram per Gallon
1 ng/L × 3.785412e-9 = 3.785412e-9 g/gal
1 nanogram per liter = 3.785412e-9 grams per gallon.
grams per gallon = nanograms per liter × 3.785412e-9
For a page dedicated to this direction, see Nanogram per Liter to Gram per Gallon.
Understanding the Gram per Gallon (g/gal)
Mass per volume density.
Understanding the Nanogram per Liter (ng/L)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanograms per liter are in 1 gram per gallon?
1 gram per gallon equals 264,172,052.4 nanograms per liter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per gallon to nanogram per liter?
Multiply the gram per gallon value by 264172052.4. The converter above does this instantly to whatever precision you set.
How do I convert nanogram per liter back to gram per gallon?
Use the reverse factor: 1 nanogram per liter equals 3.785412e-9 grams per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per gallon?
Gram per Gallon (g/gal) is a unit of density.
What is a nanogram per liter?
Nanogram per Liter (ng/L) is a unit of density.
Is the gram per gallon to nanogram per liter conversion exact?
Yes. Both gram per gallon and nanogram per liter are defined by fixed standards rather than physical artifacts, so the factor of 264172052.4 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.