Mass per volume density.
Stones per Imperial gallon to Kilograms per Quart Converter — st/imp gal to kg/qt
Convert Stone per Imperial gallon (st/imp gal) to Kilogram per Quart (kg/qt) using the exact conversion factor (1 stone per imperial gallon = 1.321931299 kilogram per quart). See the formula, worked examples, and conversion table.
Stones per Imperial gallon to Kilograms 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 1396.869217 / 1056.688209.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Imperial gallon to Kilograms per Quart
Stone per Imperial gallon and Kilogram 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
kilograms per quart = stones per imperial gallon × 1.32193129895
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per imperial gallon equals 1396.86921728 base units, and 1 kilogram per quart equals 1056.68820943 base units, so dividing one by the other gives the direct stone per imperial gallon-to-kilogram per quart factor of 1.32193129895.
Simple example
1 st/imp gal × 1.321931299 = 1.321931299 kg/qt
1 stone per imperial gallon = 1.321931299 kilograms per quart.
Real-world example
1,000 st/imp gal × 1.321931299 = 1,321.931299 kg/qt
1,000 stones per imperial gallon = 1,321.931299 kilograms per quart.
Conversion table
| Stone per Imperial gallon (st/imp gal) | Kilogram per Quart (kg/qt) |
|---|---|
| 0.1 st/imp gal | 0.1321931299 kg/qt |
| 1 st/imp gal | 1.321931299 kg/qt |
| 10 st/imp gal | 13.21931299 kg/qt |
| 100 st/imp gal | 132.1931299 kg/qt |
| 1,000 st/imp gal | 1,321.931299 kg/qt |
| 10,000 st/imp gal | 13,219.31299 kg/qt |
Reverse conversion: Kilogram per Quart to Stone per Imperial gallon
1.321931299 kg/qt × 0.7564689639 = 1 st/imp gal
1.321931299 kilograms per quart = 1 stones per imperial gallon.
stones per imperial gallon = kilograms per quart × 0.75646896385
For a page dedicated to this direction, see Kilogram per Quart to Stone per Imperial gallon.
Understanding the Stone per Imperial gallon (st/imp gal)
Mass per volume density.
Understanding the Kilogram per Quart (kg/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per quart are in 1 stone per imperial gallon?
1 stone per imperial gallon equals 1.321931299 kilograms per quart, using the exact defined conversion factor rather than an estimate.
How do I convert stone per imperial gallon to kilogram per quart?
Multiply the stone per imperial gallon value by 1.321931299. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per quart back to stone per imperial gallon?
Use the reverse factor: 1 kilogram per quart equals 0.7564689639 stones per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per imperial gallon?
Stone per Imperial gallon (st/imp gal) is a unit of density.
What is a kilogram per quart?
Kilogram per Quart (kg/qt) is a unit of density.
Is the stone per imperial gallon to kilogram per quart conversion exact?
Yes. Both stone per imperial gallon and kilogram per quart are defined by fixed standards rather than physical artifacts, so the factor of 1.321931299 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.