Mass per volume density.
Stones per Cubic yard to Kilograms per Cubic foot Converter — st/yd3 to kg/ft3
Convert Stone per Cubic yard (st/yd3) to Kilogram per Cubic foot (kg/ft3) using the exact conversion factor (1 stone per cubic yard = 0.2351960437 kilogram per cubic foot). See the formula, worked examples, conversion table, and common uses.
Stones per Cubic yard to Kilograms 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 8.305869898 / 35.31466672.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Cubic yard to Kilograms per Cubic foot
Stone per Cubic yard and Kilogram 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
kilograms per cubic foot = stones per cubic yard × 0.235196043704
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per cubic yard equals 8.30586989761 base units, and 1 kilogram per cubic foot equals 35.3146667215 base units, so dividing one by the other gives the direct stone per cubic yard-to-kilogram per cubic foot factor of 0.235196043704.
Simple example
1 st/yd3 × 0.2351960437 = 0.2351960437 kg/ft3
1 stone per cubic yard = 0.2351960437 kilograms per cubic foot.
Real-world example
1,000 st/yd3 × 0.2351960437 = 235.1960437 kg/ft3
1,000 stones per cubic yard = 235.1960437 kilograms per cubic foot.
Conversion table
| Stone per Cubic yard (st/yd3) | Kilogram per Cubic foot (kg/ft3) |
|---|---|
| 0.1 st/yd3 | 0.0235196044 kg/ft3 |
| 1 st/yd3 | 0.2351960437 kg/ft3 |
| 10 st/yd3 | 2.351960437 kg/ft3 |
| 100 st/yd3 | 23.51960437 kg/ft3 |
| 1,000 st/yd3 | 235.1960437 kg/ft3 |
| 10,000 st/yd3 | 2,351.960437 kg/ft3 |
Reverse conversion: Kilogram per Cubic foot to Stone per Cubic yard
0.2351960437 kg/ft3 × 4.251772199 = 1 st/yd3
0.2351960437 kilograms per cubic foot = 1 stones per cubic yard.
stones per cubic yard = kilograms per cubic foot × 4.25177219928
For a page dedicated to this direction, see Kilogram per Cubic foot to Stone per Cubic yard.
Understanding the Stone per Cubic yard (st/yd3)
Mass per volume density.
Understanding the Kilogram per Cubic foot
Kilogram per Cubic foot (kg/ft3) measures density. A mathematically valid way to express density in kilograms per cubic foot. It is classified as a mixed metric/US customary density unit.
Uses of the Kilogram per Cubic foot today
- Can be used to express the density of construction and bulk materials such as insulation, soil, or aggregate — in practice, pounds per cubic foot (US) or tons per cubic yard are the units more commonly seen in US construction references
Kilogram per Cubic foot — sources
- US construction and materials-estimating references — US construction density figures are typically given in pounds per cubic foot or tons per cubic yard rather than kilograms per cubic foot.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per cubic foot are in 1 stone per cubic yard?
1 stone per cubic yard equals 0.2351960437 kilograms per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert stone per cubic yard to kilogram per cubic foot?
Multiply the stone per cubic yard value by 0.2351960437. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic foot back to stone per cubic yard?
Use the reverse factor: 1 kilogram per cubic foot equals 4.251772199 stones per cubic yard. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per cubic yard?
Stone per Cubic yard (st/yd3) is a unit of density.
What is a kilogram per cubic foot?
Kilogram per Cubic foot (kg/ft3) measures density. A mathematically valid way to express density in kilograms per cubic foot. It is classified as a mixed metric/US customary density unit.
Is the stone per cubic yard to kilogram per cubic foot conversion exact?
Yes. Both stone per cubic yard and kilogram per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 0.2351960437 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.