Mass per volume density.
Milligrams per Gallon to Nanograms per Gallon Converter — mg/gal to ng/gal
Convert Milligram per Gallon (mg/gal) to Nanogram per Gallon (ng/gal) using the exact conversion factor (1 milligram per gallon = 1,000,000 nanogram per gallon). See the formula, worked examples, and conversion table.
Milligrams per Gallon to Nanograms per Gallon 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 0.0002641720524 / 2.64172052e-10.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Gallon to Nanograms per Gallon
Milligram per Gallon and Nanogram per Gallon 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 gallon = milligrams per gallon × 1000000
This factor comes from each unit's defined relationship to the category's base unit: 1 milligram per gallon equals 0.000264172052358 base units, and 1 nanogram per gallon equals 2.641721e-10 base units, so dividing one by the other gives the direct milligram per gallon-to-nanogram per gallon factor of 1000000.
Simple example
1 mg/gal × 1000000 = 1,000,000 ng/gal
1 milligram per gallon = 1,000,000 nanograms per gallon.
Real-world example
1,000 mg/gal × 1000000 = 1,000,000,000 ng/gal
1,000 milligrams per gallon = 1,000,000,000 nanograms per gallon.
Conversion table
| Milligram per Gallon (mg/gal) | Nanogram per Gallon (ng/gal) |
|---|---|
| 0.1 mg/gal | 100,000 ng/gal |
| 1 mg/gal | 1,000,000 ng/gal |
| 10 mg/gal | 10,000,000 ng/gal |
| 100 mg/gal | 100,000,000 ng/gal |
| 1,000 mg/gal | 1,000,000,000 ng/gal |
| 10,000 mg/gal | 10,000,000,000 ng/gal |
Reverse conversion: Nanogram per Gallon to Milligram per Gallon
1 ng/gal × 0.000001 = 0.000001 mg/gal
1 nanogram per gallon = 0.000001 milligrams per gallon.
milligrams per gallon = nanograms per gallon × 0.000001
For a page dedicated to this direction, see Nanogram per Gallon to Milligram per Gallon.
Understanding the Milligram per Gallon (mg/gal)
Mass per volume density.
Understanding the Nanogram per Gallon (ng/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanograms per gallon are in 1 milligram per gallon?
1 milligram per gallon equals 1,000,000 nanograms per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per gallon to nanogram per gallon?
Multiply the milligram per gallon value by 1000000. The converter above does this instantly to whatever precision you set.
How do I convert nanogram per gallon back to milligram per gallon?
Use the reverse factor: 1 nanogram per gallon equals 0.000001 milligrams per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a milligram per gallon?
Milligram per Gallon (mg/gal) is a unit of density.
What is a nanogram per gallon?
Nanogram per Gallon (ng/gal) is a unit of density.
Is the milligram per gallon to nanogram per gallon conversion exact?
Yes. Both milligram per gallon and nanogram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 1000000 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.