Mass per volume density.
Slugs per Cubic foot to Kilograms per Cubic yard Converter — slug/ft3 to kg/yd3
Convert Slug per Cubic foot (slug/ft3) to Kilogram per Cubic yard (kg/yd3) using the exact conversion factor (1 slug per cubic foot = 394.0353793 kilogram per cubic yard). See the formula, worked examples, conversion table, and common uses.
Slugs per Cubic foot to Kilograms 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 515.3788184 / 1.307950619.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Slugs per Cubic foot to Kilograms per Cubic yard
Slug per Cubic foot and Kilogram 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. Both are mass per volume density units.
Formula
kilograms per cubic yard = slugs per cubic foot × 394.035379304
This factor comes from each unit's defined relationship to the category's base unit: 1 slug per cubic foot equals 515.378818393 base units, and 1 kilogram per cubic yard equals 1.30795061931 base units, so dividing one by the other gives the direct slug per cubic foot-to-kilogram per cubic yard factor of 394.035379304.
Simple example
1 slug/ft3 × 394.0353793 = 394.0353793 kg/yd3
1 slug per cubic foot = 394.0353793 kilograms per cubic yard.
Real-world example
1,000 slug/ft3 × 394.0353793 = 394,035.3793 kg/yd3
1,000 slugs per cubic foot = 394,035.3793 kilograms per cubic yard.
Conversion table
| Slug per Cubic foot (slug/ft3) | Kilogram per Cubic yard (kg/yd3) |
|---|---|
| 0.1 slug/ft3 | 39.40353793 kg/yd3 |
| 1 slug/ft3 | 394.0353793 kg/yd3 |
| 10 slug/ft3 | 3,940.353793 kg/yd3 |
| 100 slug/ft3 | 39,403.53793 kg/yd3 |
| 1,000 slug/ft3 | 394,035.3793 kg/yd3 |
| 10,000 slug/ft3 | 3,940,353.793 kg/yd3 |
Reverse conversion: Kilogram per Cubic yard to Slug per Cubic foot
394.0353793 kg/yd3 × 0.00253784318 = 1 slug/ft3
394.0353793 kilograms per cubic yard = 1 slugs per cubic foot.
slugs per cubic foot = kilograms per cubic yard × 0.00253784317988
For a page dedicated to this direction, see Kilogram per Cubic yard to Slug per Cubic foot.
Understanding the Slug per Cubic foot (slug/ft3)
Mass per volume density.
Understanding the Kilogram per Cubic yard
Kilogram per Cubic yard (kg/yd3) measures density. A mathematically valid way to express bulk material density in kilograms per cubic yard. It is classified as a mixed metric/US customary density unit.
Uses of the Kilogram per Cubic yard today
- Can be used to express the density of bulk construction materials such as gravel, soil, or aggregate — in practice, US construction and landscaping references more commonly express this as tons per cubic yard or pounds per cubic foot
Kilogram per Cubic yard — sources
- US construction and landscaping material-estimating references — Bulk material weight by volume is typically reported in tons per cubic yard in US construction and landscaping contexts.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per cubic yard are in 1 slug per cubic foot?
1 slug per cubic foot equals 394.0353793 kilograms per cubic yard, using the exact defined conversion factor rather than an estimate.
How do I convert slug per cubic foot to kilogram per cubic yard?
Multiply the slug per cubic foot value by 394.0353793. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic yard back to slug per cubic foot?
Use the reverse factor: 1 kilogram per cubic yard equals 0.0025378432 slugs per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a slug per cubic foot?
Slug per Cubic foot (slug/ft3) is a unit of density.
What is a kilogram per cubic yard?
Kilogram per Cubic yard (kg/yd3) measures density. A mathematically valid way to express bulk material density in kilograms per cubic yard. It is classified as a mixed metric/US customary density unit.
Is the slug per cubic foot to kilogram per cubic yard conversion exact?
Yes. Both slug per cubic foot and kilogram per cubic yard are defined by fixed standards rather than physical artifacts, so the factor of 394.0353793 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.