Mass per volume density.
Hectograms per Gallon to Pounds per Quart Converter — hg/gal to lb/qt
Convert Hectogram per Gallon (hg/gal) to Pound per Quart (lb/qt) using the exact conversion factor (1 hectogram per gallon = 0.0551155656 pound per quart). See the formula, worked examples, and conversion table.
Hectograms per Gallon to Pounds per Quart 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 / 479.3057093.
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 Pounds per Quart
Hectogram per Gallon and Pound per Quart 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
pounds per quart = hectograms per gallon × 0.0551155655462
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 pound per quart equals 479.305709268 base units, so dividing one by the other gives the direct hectogram per gallon-to-pound per quart factor of 0.0551155655462.
Simple example
1 hg/gal × 0.05511556555 = 0.0551155656 lb/qt
1 hectogram per gallon = 0.0551155656 pounds per quart.
Real-world example
1,000 hg/gal × 0.05511556555 = 55.11556555 lb/qt
1,000 hectograms per gallon = 55.11556555 pounds per quart.
Conversion table
| Hectogram per Gallon (hg/gal) | Pound per Quart (lb/qt) |
|---|---|
| 0.1 hg/gal | 0.0055115566 lb/qt |
| 1 hg/gal | 0.0551155656 lb/qt |
| 10 hg/gal | 0.5511556555 lb/qt |
| 100 hg/gal | 5.511556555 lb/qt |
| 1,000 hg/gal | 55.11556555 lb/qt |
| 10,000 hg/gal | 551.1556555 lb/qt |
Reverse conversion: Pound per Quart to Hectogram per Gallon
0.0551155656 lb/qt × 18.1436948 = 1.000000001 hg/gal
0.0551155656 pounds per quart = 1.000000001 hectograms per gallon.
hectograms per gallon = pounds per quart × 18.1436948
For a page dedicated to this direction, see Pound per Quart to Hectogram per Gallon.
Understanding the Hectogram per Gallon (hg/gal)
Mass per volume density.
Understanding the Pound per Quart (lb/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per quart are in 1 hectogram per gallon?
1 hectogram per gallon equals 0.0551155656 pounds per quart, using the exact defined conversion factor rather than an estimate.
How do I convert hectogram per gallon to pound per quart?
Multiply the hectogram per gallon value by 0.05511556555. The converter above does this instantly to whatever precision you set.
How do I convert pound per quart back to hectogram per gallon?
Use the reverse factor: 1 pound per quart equals 18.1436948 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 pound per quart?
Pound per Quart (lb/qt) is a unit of density.
Is the hectogram per gallon to pound per quart conversion exact?
Yes. Both hectogram per gallon and pound per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.05511556555 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.