Mass per volume density.
Kilograms per Quart to Stones per Gallon Converter — kg/qt to st/gal
Convert Kilogram per Quart (kg/qt) to Stone per Gallon (st/gal) using the exact conversion factor (1 kilogram per quart = 0.6298921777 stone per gallon). See the formula, worked examples, and conversion table.
Kilograms per Quart to Stones per 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 1056.688209 / 1677.569982.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Quart to Stones per Gallon
Kilogram per Quart and Stone per 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
stones per gallon = kilograms per quart × 0.629892177671
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per quart equals 1056.68820943 base units, and 1 stone per gallon equals 1677.56998244 base units, so dividing one by the other gives the direct kilogram per quart-to-stone per gallon factor of 0.629892177671.
Simple example
1 kg/qt × 0.6298921777 = 0.6298921777 st/gal
1 kilogram per quart = 0.6298921777 stones per gallon.
Real-world example
1,000 kg/qt × 0.6298921777 = 629.8921777 st/gal
1,000 kilograms per quart = 629.8921777 stones per gallon.
Conversion table
| Kilogram per Quart (kg/qt) | Stone per Gallon (st/gal) |
|---|---|
| 0.1 kg/qt | 0.0629892178 st/gal |
| 1 kg/qt | 0.6298921777 st/gal |
| 10 kg/qt | 6.298921777 st/gal |
| 100 kg/qt | 62.98921777 st/gal |
| 1,000 kg/qt | 629.8921777 st/gal |
| 10,000 kg/qt | 6,298.921777 st/gal |
Reverse conversion: Stone per Gallon to Kilogram per Quart
0.6298921777 st/gal × 1.587573295 = 1 kg/qt
0.6298921777 stones per gallon = 1 kilograms per quart.
kilograms per quart = stones per gallon × 1.587573295
For a page dedicated to this direction, see Stone per Gallon to Kilogram per Quart.
Understanding the Kilogram per Quart (kg/qt)
Mass per volume density.
Understanding the Stone per Gallon (st/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per gallon are in 1 kilogram per quart?
1 kilogram per quart equals 0.6298921777 stones per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per quart to stone per gallon?
Multiply the kilogram per quart value by 0.6298921777. The converter above does this instantly to whatever precision you set.
How do I convert stone per gallon back to kilogram per quart?
Use the reverse factor: 1 stone per gallon equals 1.587573295 kilograms per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram per quart?
Kilogram per Quart (kg/qt) is a unit of density.
What is a stone per gallon?
Stone per Gallon (st/gal) is a unit of density.
Is the kilogram per quart to stone per gallon conversion exact?
Yes. Both kilogram per quart and stone per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.6298921777 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.