Mass per volume density.
Grams per Cubic foot to Kilograms per Cubic foot Converter — g/ft3 to kg/ft3
Convert Gram per Cubic foot (g/ft3) to Kilogram per Cubic foot (kg/ft3) using the exact conversion factor (1 gram per cubic foot = 0.001 kilogram per cubic foot). See the formula, worked examples, conversion table, unit comparison, and common uses.
Grams per Cubic foot 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 0.03531466672 / 35.31466672.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Cubic foot to Kilograms per Cubic foot
Gram per Cubic foot 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. Gram per Cubic foot is most often used for can be used to express the density of low-density materials such as insulation foam, packaging material, or gas concentration by volume — for typical solid or liquid materials, kilograms per cubic meter or pounds per cubic foot are more commonly encountered.
Formula
kilograms per cubic foot = grams per cubic foot × 0.001
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per cubic foot equals 0.0353146667215 base units, and 1 kilogram per cubic foot equals 35.3146667215 base units, so dividing one by the other gives the direct gram per cubic foot-to-kilogram per cubic foot factor of 0.001.
Simple example
1 g/ft3 × 0.001 = 0.001 kg/ft3
1 gram per cubic foot = 0.001 kilograms per cubic foot.
Real-world example
1,000 g/ft3 × 0.001 = 1 kg/ft3
1,000 grams per cubic foot = 1 kilogram per cubic foot.
Conversion table
| Gram per Cubic foot (g/ft3) | Kilogram per Cubic foot (kg/ft3) |
|---|---|
| 0.1 g/ft3 | 0.0001 kg/ft3 |
| 1 g/ft3 | 0.001 kg/ft3 |
| 10 g/ft3 | 0.01 kg/ft3 |
| 100 g/ft3 | 0.1 kg/ft3 |
| 1,000 g/ft3 | 1 kg/ft3 |
| 10,000 g/ft3 | 10 kg/ft3 |
Reverse conversion: Kilogram per Cubic foot to Gram per Cubic foot
0.001 kg/ft3 × 1000 = 1 g/ft3
0.001 kilograms per cubic foot = 1 gram per cubic foot.
grams per cubic foot = kilograms per cubic foot × 1000
For a page dedicated to this direction, see Kilogram per Cubic foot to Gram per Cubic foot.
Gram per Cubic foot vs. Kilogram per Cubic foot
| Aspect | Gram per Cubic foot | Kilogram per Cubic foot |
|---|---|---|
| Family | mixed metric/US customary density unit | mixed metric/US customary density unit |
| Typical use | Can be used to express the density of low-density materials such as insulation foam, packaging material, or gas concentration by volume — for typical solid or liquid materials, kilograms per cubic meter or pounds per cubic foot are more commonly encountered | 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 Gram per Cubic foot
Gram per Cubic foot (g/ft3) measures density. A gram is a small mass unit and a cubic foot a comparatively large volume, so this combination naturally suits low-density materials rather than typical solids or liquids. It is classified as a mixed metric/US customary density unit.
Uses of the Gram per Cubic foot today
- Can be used to express the density of low-density materials such as insulation foam, packaging material, or gas concentration by volume — for typical solid or liquid materials, kilograms per cubic meter or pounds per cubic foot are more commonly encountered
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
Gram per Cubic foot — sources
- BIPM SI Brochure — Gram and cubic foot as units combinable to express density, though not a standard industry pairing for general materials.
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 gram per cubic foot?
1 gram per cubic foot equals 0.001 kilograms per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cubic foot to kilogram per cubic foot?
Multiply the gram per cubic foot value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic foot back to gram per cubic foot?
Use the reverse factor: 1 kilogram per cubic foot equals 1,000 grams per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per cubic foot?
Gram per Cubic foot (g/ft3) measures density. A gram is a small mass unit and a cubic foot a comparatively large volume, so this combination naturally suits low-density materials rather than typical solids or liquids. It is classified as a mixed metric/US customary density unit.
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 gram per cubic foot to kilogram per cubic foot conversion exact?
Yes. Both gram per cubic foot and kilogram per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 0.001 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.