Mass per volume density.
Grams per Gallon to Pounds per Quart Converter — g/gal to lb/qt
Convert Gram per Gallon (g/gal) to Pound per Quart (lb/qt) using the exact conversion factor (1 gram per gallon = 0.0005511557 pound per quart). See the formula, worked examples, and conversion table.
Grams 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 0.2641720524 / 479.3057093.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Gallon to Pounds per Quart
Gram 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 = grams per gallon × 0.000551155655462
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per gallon equals 0.264172052358 base units, and 1 pound per quart equals 479.305709268 base units, so dividing one by the other gives the direct gram per gallon-to-pound per quart factor of 0.000551155655462.
Simple example
1 g/gal × 0.0005511556555 = 0.0005511557 lb/qt
1 gram per gallon = 0.0005511557 pounds per quart.
Real-world example
1,000 g/gal × 0.0005511556555 = 0.5511556555 lb/qt
1,000 grams per gallon = 0.5511556555 pounds per quart.
Conversion table
| Gram per Gallon (g/gal) | Pound per Quart (lb/qt) |
|---|---|
| 0.1 g/gal | 0.0000551156 lb/qt |
| 1 g/gal | 0.0005511557 lb/qt |
| 10 g/gal | 0.0055115566 lb/qt |
| 100 g/gal | 0.0551155656 lb/qt |
| 1,000 g/gal | 0.5511556555 lb/qt |
| 10,000 g/gal | 5.511556555 lb/qt |
Reverse conversion: Pound per Quart to Gram per Gallon
0.0005511557 lb/qt × 1814.36948 = 1.000000081 g/gal
0.0005511557 pounds per quart = 1.000000081 grams per gallon.
grams per gallon = pounds per quart × 1814.36948
For a page dedicated to this direction, see Pound per Quart to Gram per Gallon.
Understanding the Gram per Gallon (g/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 gram per gallon?
1 gram per gallon equals 0.0005511557 pounds per quart, using the exact defined conversion factor rather than an estimate.
How do I convert gram per gallon to pound per quart?
Multiply the gram per gallon value by 0.0005511556555. The converter above does this instantly to whatever precision you set.
How do I convert pound per quart back to gram per gallon?
Use the reverse factor: 1 pound per quart equals 1,814.36948 grams per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per gallon?
Gram per Gallon (g/gal) is a unit of density.
What is a pound per quart?
Pound per Quart (lb/qt) is a unit of density.
Is the gram per gallon to pound per quart conversion exact?
Yes. Both gram per gallon and pound per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.0005511556555 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.