Mass per volume density.
Kilograms per Quart to Stones per Cup Converter — kg/qt to st/cup
Convert Kilogram per Quart (kg/qt) to Stone per Cup (st/cup) using the exact conversion factor (1 kilogram per quart = 0.0393682611 stone per cup). See the formula, worked examples, and conversion table.
Kilograms per Quart to Stones per Cup 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 / 26841.11972.
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 Cup
Kilogram per Quart and Stone per Cup 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 cup = kilograms per quart × 0.0393682611044
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 cup equals 26841.119719 base units, so dividing one by the other gives the direct kilogram per quart-to-stone per cup factor of 0.0393682611044.
Simple example
1 kg/qt × 0.0393682611 = 0.0393682611 st/cup
1 kilogram per quart = 0.0393682611 stones per cup.
Real-world example
1,000 kg/qt × 0.0393682611 = 39.3682611 st/cup
1,000 kilograms per quart = 39.3682611 stones per cup.
Conversion table
| Kilogram per Quart (kg/qt) | Stone per Cup (st/cup) |
|---|---|
| 0.1 kg/qt | 0.0039368261 st/cup |
| 1 kg/qt | 0.0393682611 st/cup |
| 10 kg/qt | 0.393682611 st/cup |
| 100 kg/qt | 3.93682611 st/cup |
| 1,000 kg/qt | 39.3682611 st/cup |
| 10,000 kg/qt | 393.682611 st/cup |
Reverse conversion: Stone per Cup to Kilogram per Quart
0.0393682611 st/cup × 25.40117272 = 0.9999999999 kg/qt
0.0393682611 stones per cup = 0.9999999999 kilograms per quart.
kilograms per quart = stones per cup × 25.40117272
For a page dedicated to this direction, see Stone per Cup to Kilogram per Quart.
Understanding the Kilogram per Quart (kg/qt)
Mass per volume density.
Understanding the Stone per Cup (st/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cup are in 1 kilogram per quart?
1 kilogram per quart equals 0.0393682611 stones per cup, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per quart to stone per cup?
Multiply the kilogram per quart value by 0.0393682611. The converter above does this instantly to whatever precision you set.
How do I convert stone per cup back to kilogram per quart?
Use the reverse factor: 1 stone per cup equals 25.40117272 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 cup?
Stone per Cup (st/cup) is a unit of density.
Is the kilogram per quart to stone per cup conversion exact?
Yes. Both kilogram per quart and stone per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.0393682611 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.