Mass per volume density.
Kilogram per Cubic inches to Kilograms per Cubic foot Converter — kg/in3 to kg/ft3
Convert Kilogram per Cubic inch (kg/in3) to Kilogram per Cubic foot (kg/ft3) using the exact conversion factor (1 kilogram per cubic inch = 1,728 kilogram per cubic foot). See the formula, worked examples, conversion table, and common uses.
Kilogram per Cubic inches 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 61023.74409 / 35.31466672.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilogram per Cubic inches to Kilograms per Cubic foot
Kilogram per Cubic inch 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 = kilogram per cubic inches × 1728
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per cubic inch equals 61023.7440947 base units, and 1 kilogram per cubic foot equals 35.3146667215 base units, so dividing one by the other gives the direct kilogram per cubic inch-to-kilogram per cubic foot factor of 1728.
Simple example
1 kg/in3 × 1728 = 1,728 kg/ft3
1 kilogram per cubic inch = 1,728 kilograms per cubic foot.
Real-world example
1,000 kg/in3 × 1728 = 1,728,000 kg/ft3
1,000 kilogram per cubic inches = 1,728,000 kilograms per cubic foot.
Conversion table
| Kilogram per Cubic inch (kg/in3) | Kilogram per Cubic foot (kg/ft3) |
|---|---|
| 0.1 kg/in3 | 172.8 kg/ft3 |
| 1 kg/in3 | 1,728 kg/ft3 |
| 10 kg/in3 | 17,280 kg/ft3 |
| 100 kg/in3 | 172,800 kg/ft3 |
| 1,000 kg/in3 | 1,728,000 kg/ft3 |
| 10,000 kg/in3 | 17,280,000 kg/ft3 |
Reverse conversion: Kilogram per Cubic foot to Kilogram per Cubic inch
1 kg/ft3 × 0.0005787037037 = 0.0005787037 kg/in3
1 kilogram per cubic foot = 0.0005787037 kilogram per cubic inches.
kilogram per cubic inches = kilograms per cubic foot × 0.000578703703704
For a page dedicated to this direction, see Kilogram per Cubic foot to Kilogram per Cubic inch.
Understanding the Kilogram per Cubic inch (kg/in3)
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 kilogram per cubic inch?
1 kilogram per cubic inch equals 1,728 kilograms per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per cubic inch to kilogram per cubic foot?
Multiply the kilogram per cubic inch value by 1728. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic foot back to kilogram per cubic inch?
Use the reverse factor: 1 kilogram per cubic foot equals 0.0005787037 kilogram per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram per cubic inch?
Kilogram per Cubic inch (kg/in3) 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 kilogram per cubic inch to kilogram per cubic foot conversion exact?
Yes. Both kilogram per cubic inch and kilogram per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 1728 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.