Mass per volume density.
Kilograms per Cubic foot to Stones per Cubic yard Converter — kg/ft3 to st/yd3
Convert Kilogram per Cubic foot (kg/ft3) to Stone per Cubic yard (st/yd3) using the exact conversion factor (1 kilogram per cubic foot = 4.251772199 stone per cubic yard). See the formula, worked examples, conversion table, and common uses.
Kilograms per Cubic foot to Stones per Cubic yard 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 35.31466672 / 8.305869898.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Cubic foot to Stones per Cubic yard
Kilogram per Cubic foot and Stone per Cubic yard 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. Kilogram per Cubic foot is most often used for 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.
Formula
stones per cubic yard = kilograms per cubic foot × 4.25177219928
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per cubic foot equals 35.3146667215 base units, and 1 stone per cubic yard equals 8.30586989761 base units, so dividing one by the other gives the direct kilogram per cubic foot-to-stone per cubic yard factor of 4.25177219928.
Simple example
1 kg/ft3 × 4.251772199 = 4.251772199 st/yd3
1 kilogram per cubic foot = 4.251772199 stones per cubic yard.
Real-world example
1,000 kg/ft3 × 4.251772199 = 4,251.772199 st/yd3
1,000 kilograms per cubic foot = 4,251.772199 stones per cubic yard.
Conversion table
| Kilogram per Cubic foot (kg/ft3) | Stone per Cubic yard (st/yd3) |
|---|---|
| 0.1 kg/ft3 | 0.4251772199 st/yd3 |
| 1 kg/ft3 | 4.251772199 st/yd3 |
| 10 kg/ft3 | 42.51772199 st/yd3 |
| 100 kg/ft3 | 425.1772199 st/yd3 |
| 1,000 kg/ft3 | 4,251.772199 st/yd3 |
| 10,000 kg/ft3 | 42,517.72199 st/yd3 |
Reverse conversion: Stone per Cubic yard to Kilogram per Cubic foot
4.251772199 st/yd3 × 0.2351960437 = 0.9999999999 kg/ft3
4.251772199 stones per cubic yard = 0.9999999999 kilograms per cubic foot.
kilograms per cubic foot = stones per cubic yard × 0.235196043704
For a page dedicated to this direction, see Stone per Cubic yard to Kilogram per Cubic foot.
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
Understanding the Stone per Cubic yard (st/yd3)
Mass per volume density.
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 stones per cubic yard are in 1 kilogram per cubic foot?
1 kilogram per cubic foot equals 4.251772199 stones per cubic yard, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per cubic foot to stone per cubic yard?
Multiply the kilogram per cubic foot value by 4.251772199. The converter above does this instantly to whatever precision you set.
How do I convert stone per cubic yard back to kilogram per cubic foot?
Use the reverse factor: 1 stone per cubic yard equals 0.2351960437 kilograms per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
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.
What is a stone per cubic yard?
Stone per Cubic yard (st/yd3) is a unit of density.
Is the kilogram per cubic foot to stone per cubic yard conversion exact?
Yes. Both kilogram per cubic foot and stone per cubic yard are defined by fixed standards rather than physical artifacts, so the factor of 4.251772199 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.