Mass per volume density.
Ounces per Cup to Kilograms per Cubic foot Converter — oz/cup to kg/ft3
Convert Ounce per Cup (oz/cup) to Kilogram per Cubic foot (kg/ft3) using the exact conversion factor (1 ounce per cup = 3.39310656 kilogram per cubic foot). See the formula, worked examples, conversion table, and common uses.
Ounces per Cup 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 119.8264273 / 35.31466672.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Cup to Kilograms per Cubic foot
Ounce per Cup 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 = ounces per cup × 3.39310656
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per cup equals 119.826427317 base units, and 1 kilogram per cubic foot equals 35.3146667215 base units, so dividing one by the other gives the direct ounce per cup-to-kilogram per cubic foot factor of 3.39310656.
Simple example
1 oz/cup × 3.39310656 = 3.39310656 kg/ft3
1 ounce per cup = 3.39310656 kilograms per cubic foot.
Real-world example
1,000 oz/cup × 3.39310656 = 3,393.10656 kg/ft3
1,000 ounces per cup = 3,393.10656 kilograms per cubic foot.
Conversion table
| Ounce per Cup (oz/cup) | Kilogram per Cubic foot (kg/ft3) |
|---|---|
| 0.1 oz/cup | 0.339310656 kg/ft3 |
| 1 oz/cup | 3.39310656 kg/ft3 |
| 10 oz/cup | 33.9310656 kg/ft3 |
| 100 oz/cup | 339.310656 kg/ft3 |
| 1,000 oz/cup | 3,393.10656 kg/ft3 |
| 10,000 oz/cup | 33,931.0656 kg/ft3 |
Reverse conversion: Kilogram per Cubic foot to Ounce per Cup
3.39310656 kg/ft3 × 0.2947151769 = 1 oz/cup
3.39310656 kilograms per cubic foot = 1 ounces per cup.
ounces per cup = kilograms per cubic foot × 0.294715176879
For a page dedicated to this direction, see Kilogram per Cubic foot to Ounce per Cup.
Understanding the Ounce per Cup (oz/cup)
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 ounce per cup?
1 ounce per cup equals 3.39310656 kilograms per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per cup to kilogram per cubic foot?
Multiply the ounce per cup value by 3.39310656. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic foot back to ounce per cup?
Use the reverse factor: 1 kilogram per cubic foot equals 0.2947151769 ounces per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per cup?
Ounce per Cup (oz/cup) 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 ounce per cup to kilogram per cubic foot conversion exact?
Yes. Both ounce per cup and kilogram per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 3.39310656 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.