Mass per volume density.
Hectograms per Gallon to Kilograms per Imperial gallon Converter — hg/gal to kg/imp gal
Convert Hectogram per Gallon (hg/gal) to Kilogram per Imperial gallon (kg/imp gal) using the exact conversion factor (1 hectogram per gallon = 0.1200949926 kilogram per imperial gallon). See the formula, worked examples, conversion table, and common uses.
Hectograms per Gallon to Kilograms 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 26.41720524 / 219.9692483.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Hectograms per Gallon to Kilograms per Imperial gallon
Hectogram per Gallon and Kilogram 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
kilograms per imperial gallon = hectograms per gallon × 0.12009499255
This factor comes from each unit's defined relationship to the category's base unit: 1 hectogram per gallon equals 26.4172052358 base units, and 1 kilogram per imperial gallon equals 219.969248299 base units, so dividing one by the other gives the direct hectogram per gallon-to-kilogram per imperial gallon factor of 0.12009499255.
Simple example
1 hg/gal × 0.1200949926 = 0.1200949926 kg/imp gal
1 hectogram per gallon = 0.1200949926 kilograms per imperial gallon.
Real-world example
1,000 hg/gal × 0.1200949926 = 120.0949926 kg/imp gal
1,000 hectograms per gallon = 120.0949926 kilograms per imperial gallon.
Conversion table
| Hectogram per Gallon (hg/gal) | Kilogram per Imperial gallon (kg/imp gal) |
|---|---|
| 0.1 hg/gal | 0.0120094993 kg/imp gal |
| 1 hg/gal | 0.1200949926 kg/imp gal |
| 10 hg/gal | 1.200949926 kg/imp gal |
| 100 hg/gal | 12.00949926 kg/imp gal |
| 1,000 hg/gal | 120.0949926 kg/imp gal |
| 10,000 hg/gal | 1,200.949926 kg/imp gal |
Reverse conversion: Kilogram per Imperial gallon to Hectogram per Gallon
0.1200949926 kg/imp gal × 8.326741846 = 1 hg/gal
0.1200949926 kilograms per imperial gallon = 1 hectograms per gallon.
hectograms per gallon = kilograms per imperial gallon × 8.32674184629
For a page dedicated to this direction, see Kilogram per Imperial gallon to Hectogram per Gallon.
Understanding the Hectogram per Gallon (hg/gal)
Mass per volume density.
Understanding the Kilogram per Imperial gallon
Kilogram per Imperial gallon (kg/imp gal) measures density. A mathematically valid way to express liquid density in kilograms per imperial gallon. It is classified as a mixed metric/UK customary density unit.
Uses of the Kilogram per Imperial gallon today
- Can be used to express liquid density in UK/Commonwealth contexts that reference the imperial gallon — in practice, kilograms per liter is the more commonly seen metric density unit even in these regions
Kilogram per Imperial gallon — sources
- UK/Commonwealth liquid-measurement references — The imperial gallon remains in some UK/Commonwealth commercial use, but liquid density is more commonly quoted in kilograms per liter.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per imperial gallon are in 1 hectogram per gallon?
1 hectogram per gallon equals 0.1200949926 kilograms per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert hectogram per gallon to kilogram per imperial gallon?
Multiply the hectogram per gallon value by 0.1200949926. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per imperial gallon back to hectogram per gallon?
Use the reverse factor: 1 kilogram per imperial gallon equals 8.326741846 hectograms per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a hectogram per gallon?
Hectogram per Gallon (hg/gal) is a unit of density.
What is a kilogram per imperial gallon?
Kilogram per Imperial gallon (kg/imp gal) measures density. A mathematically valid way to express liquid density in kilograms per imperial gallon. It is classified as a mixed metric/UK customary density unit.
Is the hectogram per gallon to kilogram per imperial gallon conversion exact?
Yes. Both hectogram per gallon and kilogram per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.1200949926 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.