Mass per volume density.
Kilograms per Cup to Stones per Cubic foot Converter — kg/cup to st/ft3
Convert Kilogram per Cup (kg/cup) to Stone per Cubic foot (st/ft3) using the exact conversion factor (1 kilogram per cup = 18.84768282 stone per cubic foot). See the formula, worked examples, and conversion table.
Kilograms per Cup to Stones per Cubic foot 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 4226.752838 / 224.2584872.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Cup to Stones per Cubic foot
Kilogram per Cup and Stone per Cubic foot 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 cubic foot = kilograms per cup × 18.8476828228
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per cup equals 4226.75283773 base units, and 1 stone per cubic foot equals 224.258487235 base units, so dividing one by the other gives the direct kilogram per cup-to-stone per cubic foot factor of 18.8476828228.
Simple example
1 kg/cup × 18.84768282 = 18.84768282 st/ft3
1 kilogram per cup = 18.84768282 stones per cubic foot.
Real-world example
1,000 kg/cup × 18.84768282 = 18,847.68282 st/ft3
1,000 kilograms per cup = 18,847.68282 stones per cubic foot.
Conversion table
| Kilogram per Cup (kg/cup) | Stone per Cubic foot (st/ft3) |
|---|---|
| 0.1 kg/cup | 1.884768282 st/ft3 |
| 1 kg/cup | 18.84768282 st/ft3 |
| 10 kg/cup | 188.4768282 st/ft3 |
| 100 kg/cup | 1,884.768282 st/ft3 |
| 1,000 kg/cup | 18,847.68282 st/ft3 |
| 10,000 kg/cup | 188,476.8282 st/ft3 |
Reverse conversion: Stone per Cubic foot to Kilogram per Cup
18.84768282 st/ft3 × 0.05305692002 = 0.9999999999 kg/cup
18.84768282 stones per cubic foot = 0.9999999999 kilograms per cup.
kilograms per cup = stones per cubic foot × 0.0530569200152
For a page dedicated to this direction, see Stone per Cubic foot to Kilogram per Cup.
Understanding the Kilogram per Cup (kg/cup)
Mass per volume density.
Understanding the Stone per Cubic foot (st/ft3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cubic foot are in 1 kilogram per cup?
1 kilogram per cup equals 18.84768282 stones per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per cup to stone per cubic foot?
Multiply the kilogram per cup value by 18.84768282. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic foot back to kilogram per cup?
Use the reverse factor: 1 stone per cubic foot equals 0.05305692 kilograms per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram per cup?
Kilogram per Cup (kg/cup) is a unit of density.
What is a stone per cubic foot?
Stone per Cubic foot (st/ft3) is a unit of density.
Is the kilogram per cup to stone per cubic foot conversion exact?
Yes. Both kilogram per cup and stone per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 18.84768282 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.