Mass per volume density.
Grains per Quart to Pounds per Imperial gallon Converter — gr/qt to lb/imp gal
Convert Grain per Quart (gr/qt) to Pound per Imperial gallon (lb/imp gal) using the exact conversion factor (1 grain per quart = 0.0006862571 pound per imperial gallon). See the formula, worked examples, and conversion table.
Grains per Quart to Pounds 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 0.06847224418 / 99.77637266.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Quart to Pounds per Imperial gallon
Grain per Quart and Pound 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
pounds per imperial gallon = grains per quart × 0.000686257100288
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per quart equals 0.0684722441811 base units, and 1 pound per imperial gallon equals 99.7763726631 base units, so dividing one by the other gives the direct grain per quart-to-pound per imperial gallon factor of 0.000686257100288.
Simple example
1 gr/qt × 0.0006862571003 = 0.0006862571 lb/imp gal
1 grain per quart = 0.0006862571 pounds per imperial gallon.
Real-world example
1,000 gr/qt × 0.0006862571003 = 0.6862571003 lb/imp gal
1,000 grains per quart = 0.6862571003 pounds per imperial gallon.
Conversion table
| Grain per Quart (gr/qt) | Pound per Imperial gallon (lb/imp gal) |
|---|---|
| 0.1 gr/qt | 0.0000686257 lb/imp gal |
| 1 gr/qt | 0.0006862571 lb/imp gal |
| 10 gr/qt | 0.006862571 lb/imp gal |
| 100 gr/qt | 0.06862571 lb/imp gal |
| 1,000 gr/qt | 0.6862571003 lb/imp gal |
| 10,000 gr/qt | 6.862571003 lb/imp gal |
Reverse conversion: Pound per Imperial gallon to Grain per Quart
0.0006862571 lb/imp gal × 1457.179823 = 0.9999999996 gr/qt
0.0006862571 pounds per imperial gallon = 0.9999999996 grains per quart.
grains per quart = pounds per imperial gallon × 1457.1798231
For a page dedicated to this direction, see Pound per Imperial gallon to Grain per Quart.
Understanding the Grain per Quart (gr/qt)
Mass per volume density.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per imperial gallon are in 1 grain per quart?
1 grain per quart equals 0.0006862571 pounds per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per quart to pound per imperial gallon?
Multiply the grain per quart value by 0.0006862571003. The converter above does this instantly to whatever precision you set.
How do I convert pound per imperial gallon back to grain per quart?
Use the reverse factor: 1 pound per imperial gallon equals 1,457.179823 grains per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per quart?
Grain per Quart (gr/qt) is a unit of density.
What is a pound per imperial gallon?
Pound per Imperial gallon (lb/imp gal) is a unit of density.
Is the grain per quart to pound per imperial gallon conversion exact?
Yes. Both grain per quart and pound per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.0006862571003 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.