Mass per volume density.
Pounds per Imperial gallon to Grains per Quart Converter — lb/imp gal to gr/qt
Convert Pound per Imperial gallon (lb/imp gal) to Grain per Quart (gr/qt) using the exact conversion factor (1 pound per imperial gallon = 1,457.179823 grain per quart). See the formula, worked examples, and conversion table.
Pounds per Imperial gallon to Grains 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 99.77637266 / 0.06847224418.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Imperial gallon to Grains per Quart
Pound per Imperial gallon and Grain 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
grains per quart = pounds per imperial gallon × 1457.1798231
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per imperial gallon equals 99.7763726631 base units, and 1 grain per quart equals 0.0684722441811 base units, so dividing one by the other gives the direct pound per imperial gallon-to-grain per quart factor of 1457.1798231.
Simple example
1 lb/imp gal × 1457.179823 = 1,457.179823 gr/qt
1 pound per imperial gallon = 1,457.179823 grains per quart.
Real-world example
1,000 lb/imp gal × 1457.179823 = 1,457,179.823 gr/qt
1,000 pounds per imperial gallon = 1,457,179.823 grains per quart.
Conversion table
| Pound per Imperial gallon (lb/imp gal) | Grain per Quart (gr/qt) |
|---|---|
| 0.1 lb/imp gal | 145.7179823 gr/qt |
| 1 lb/imp gal | 1,457.179823 gr/qt |
| 10 lb/imp gal | 14,571.79823 gr/qt |
| 100 lb/imp gal | 145,717.9823 gr/qt |
| 1,000 lb/imp gal | 1,457,179.823 gr/qt |
| 10,000 lb/imp gal | 14,571,798.23 gr/qt |
Reverse conversion: Grain per Quart to Pound per Imperial gallon
1 gr/qt × 0.0006862571003 = 0.0006862571 lb/imp gal
1 grain per quart = 0.0006862571 pounds per imperial gallon.
pounds per imperial gallon = grains per quart × 0.000686257100288
For a page dedicated to this direction, see Grain per Quart to Pound per Imperial gallon.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Understanding the Grain per Quart (gr/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per quart are in 1 pound per imperial gallon?
1 pound per imperial gallon equals 1,457.179823 grains per quart, using the exact defined conversion factor rather than an estimate.
How do I convert pound per imperial gallon to grain per quart?
Multiply the pound per imperial gallon value by 1457.179823. The converter above does this instantly to whatever precision you set.
How do I convert grain per quart back to pound per imperial gallon?
Use the reverse factor: 1 grain per quart equals 0.0006862571 pounds per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per imperial gallon?
Pound per Imperial gallon (lb/imp gal) is a unit of density.
What is a grain per quart?
Grain per Quart (gr/qt) is a unit of density.
Is the pound per imperial gallon to grain per quart conversion exact?
Yes. Both pound per imperial gallon and grain per quart are defined by fixed standards rather than physical artifacts, so the factor of 1457.179823 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.