Mass per volume density.
Milligrams per Gallon to Nanograms per Imperial gallon Converter — mg/gal to ng/imp gal
Convert Milligram per Gallon (mg/gal) to Nanogram per Imperial gallon (ng/imp gal) using the exact conversion factor (1 milligram per gallon = 1,200,949.926 nanogram per imperial gallon). See the formula, worked examples, and conversion table.
Milligrams per Gallon to Nanograms per Imperial 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 / 2.19969248e-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 Imperial gallon
Milligram per Gallon and Nanogram per Imperial 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 imperial gallon = milligrams per gallon × 1200949.9255
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 imperial gallon equals 2.199692e-10 base units, so dividing one by the other gives the direct milligram per gallon-to-nanogram per imperial gallon factor of 1200949.9255.
Simple example
1 mg/gal × 1200949.926 = 1,200,949.926 ng/imp gal
1 milligram per gallon = 1,200,949.926 nanograms per imperial gallon.
Real-world example
1,000 mg/gal × 1200949.926 = 1,200,949,926 ng/imp gal
1,000 milligrams per gallon = 1,200,949,926 nanograms per imperial gallon.
Conversion table
| Milligram per Gallon (mg/gal) | Nanogram per Imperial gallon (ng/imp gal) |
|---|---|
| 0.1 mg/gal | 120,094.9926 ng/imp gal |
| 1 mg/gal | 1,200,949.926 ng/imp gal |
| 10 mg/gal | 12,009,499.26 ng/imp gal |
| 100 mg/gal | 120,094,992.6 ng/imp gal |
| 1,000 mg/gal | 1,200,949,926 ng/imp gal |
| 10,000 mg/gal | 12,009,499,260 ng/imp gal |
Reverse conversion: Nanogram per Imperial gallon to Milligram per Gallon
1 ng/imp gal × 8.326742e-7 = 8.326742e-7 mg/gal
1 nanogram per imperial gallon = 8.326742e-7 milligrams per gallon.
milligrams per gallon = nanograms per imperial gallon × 8.326742e-7
For a page dedicated to this direction, see Nanogram per Imperial gallon to Milligram per Gallon.
Understanding the Milligram per Gallon (mg/gal)
Mass per volume density.
Understanding the Nanogram per Imperial gallon (ng/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanograms per imperial gallon are in 1 milligram per gallon?
1 milligram per gallon equals 1,200,949.926 nanograms per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per gallon to nanogram per imperial gallon?
Multiply the milligram per gallon value by 1200949.926. The converter above does this instantly to whatever precision you set.
How do I convert nanogram per imperial gallon back to milligram per gallon?
Use the reverse factor: 1 nanogram per imperial gallon equals 8.326742e-7 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 imperial gallon?
Nanogram per Imperial gallon (ng/imp gal) is a unit of density.
Is the milligram per gallon to nanogram per imperial gallon conversion exact?
Yes. Both milligram per gallon and nanogram per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 1200949.926 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.