Mass per volume density.
Nanograms per Gallon to Hectograms per Imperial gallon Converter — ng/gal to hg/imp gal
Convert Nanogram per Gallon (ng/gal) to Hectogram per Imperial gallon (hg/imp gal) using the exact conversion factor (1 nanogram per gallon = 1.20095e-11 hectogram per imperial gallon). See the formula, worked examples, and conversion table.
Nanograms per Gallon to Hectograms 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 2.64172052e-10 / 21.99692483.
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 Hectograms per Imperial gallon
Nanogram per Gallon and Hectogram 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
hectograms per imperial gallon = nanograms per gallon × 1.20095e-11
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 hectogram per imperial gallon equals 21.9969248299 base units, so dividing one by the other gives the direct nanogram per gallon-to-hectogram per imperial gallon factor of 1.20095e-11.
Simple example
1 ng/gal × 1.20095e-11 = 1.20095e-11 hg/imp gal
1 nanogram per gallon = 1.20095e-11 hectograms per imperial gallon.
Real-world example
1,000 ng/gal × 1.20095e-11 = 1.20095e-8 hg/imp gal
1,000 nanograms per gallon = 1.20095e-8 hectograms per imperial gallon.
Conversion table
| Nanogram per Gallon (ng/gal) | Hectogram per Imperial gallon (hg/imp gal) |
|---|---|
| 0.1 ng/gal | 1.20095e-12 hg/imp gal |
| 1 ng/gal | 1.20095e-11 hg/imp gal |
| 10 ng/gal | 1.20095e-10 hg/imp gal |
| 100 ng/gal | 1.20095e-9 hg/imp gal |
| 1,000 ng/gal | 1.20095e-8 hg/imp gal |
| 10,000 ng/gal | 1.20095e-7 hg/imp gal |
Reverse conversion: Hectogram per Imperial gallon to Nanogram per Gallon
1.20095e-11 hg/imp gal × 83267418460 = 1.000000062 ng/gal
1.20095e-11 hectograms per imperial gallon = 1.000000062 nanograms per gallon.
nanograms per gallon = hectograms per imperial gallon × 83267418462.9
For a page dedicated to this direction, see Hectogram per Imperial gallon to Nanogram per Gallon.
Understanding the Nanogram per Gallon (ng/gal)
Mass per volume density.
Understanding the Hectogram per Imperial gallon (hg/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many hectograms per imperial gallon are in 1 nanogram per gallon?
1 nanogram per gallon equals 1.20095e-11 hectograms per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert nanogram per gallon to hectogram per imperial gallon?
Multiply the nanogram per gallon value by 1.20095e-11. The converter above does this instantly to whatever precision you set.
How do I convert hectogram per imperial gallon back to nanogram per gallon?
Use the reverse factor: 1 hectogram per imperial gallon equals 83,267,418,460 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 hectogram per imperial gallon?
Hectogram per Imperial gallon (hg/imp gal) is a unit of density.
Is the nanogram per gallon to hectogram per imperial gallon conversion exact?
Yes. Both nanogram per gallon and hectogram per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 1.20095e-11 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.