Mass per volume density.
Hectograms per Imperial gallon to Grains per Liter Converter — hg/imp gal to gr/L
Convert Hectogram per Imperial gallon (hg/imp gal) to Grain per Liter (gr/L) using the exact conversion factor (1 hectogram per imperial gallon = 339.4644266 grain per liter). See the formula, worked examples, and conversion table.
Hectograms per Imperial gallon to Grains 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 21.99692483 / 0.06479891.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Hectograms per Imperial gallon to Grains per Liter
Hectogram per Imperial gallon and Grain 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
grains per liter = hectograms per imperial gallon × 339.464426638
This factor comes from each unit's defined relationship to the category's base unit: 1 hectogram per imperial gallon equals 21.9969248299 base units, and 1 grain per liter equals 0.06479891 base units, so dividing one by the other gives the direct hectogram per imperial gallon-to-grain per liter factor of 339.464426638.
Simple example
1 hg/imp gal × 339.4644266 = 339.4644266 gr/L
1 hectogram per imperial gallon = 339.4644266 grains per liter.
Real-world example
1,000 hg/imp gal × 339.4644266 = 339,464.4266 gr/L
1,000 hectograms per imperial gallon = 339,464.4266 grains per liter.
Conversion table
| Hectogram per Imperial gallon (hg/imp gal) | Grain per Liter (gr/L) |
|---|---|
| 0.1 hg/imp gal | 33.94644266 gr/L |
| 1 hg/imp gal | 339.4644266 gr/L |
| 10 hg/imp gal | 3,394.644266 gr/L |
| 100 hg/imp gal | 33,946.44266 gr/L |
| 1,000 hg/imp gal | 339,464.4266 gr/L |
| 10,000 hg/imp gal | 3,394,644.266 gr/L |
Reverse conversion: Grain per Liter to Hectogram per Imperial gallon
339.4644266 gr/L × 0.002945816768 = 0.9999999999 hg/imp gal
339.4644266 grains per liter = 0.9999999999 hectograms per imperial gallon.
hectograms per imperial gallon = grains per liter × 0.00294581676762
For a page dedicated to this direction, see Grain per Liter to Hectogram per Imperial gallon.
Understanding the Hectogram per Imperial gallon (hg/imp gal)
Mass per volume density.
Understanding the Grain per Liter (gr/L)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per liter are in 1 hectogram per imperial gallon?
1 hectogram per imperial gallon equals 339.4644266 grains per liter, using the exact defined conversion factor rather than an estimate.
How do I convert hectogram per imperial gallon to grain per liter?
Multiply the hectogram per imperial gallon value by 339.4644266. The converter above does this instantly to whatever precision you set.
How do I convert grain per liter back to hectogram per imperial gallon?
Use the reverse factor: 1 grain per liter equals 0.0029458168 hectograms per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a hectogram per imperial gallon?
Hectogram per Imperial gallon (hg/imp gal) is a unit of density.
What is a grain per liter?
Grain per Liter (gr/L) is a unit of density.
Is the hectogram per imperial gallon to grain per liter conversion exact?
Yes. Both hectogram per imperial gallon and grain per liter are defined by fixed standards rather than physical artifacts, so the factor of 339.4644266 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.