Mass per volume density.
Grams per Cubic foot to Pounds per Cubic foot Converter — g/ft3 to lb/ft3
Convert Gram per Cubic foot (g/ft3) to Pound per Cubic foot (lb/ft3) using the exact conversion factor (1 gram per cubic foot = 0.0022046226 pound per cubic foot). See the formula, worked examples, conversion table, unit comparison, and common uses.
Grams per Cubic foot to Pounds 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 / 16.01846337.
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 Pounds per Cubic foot
Gram per Cubic foot and Pound 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
pounds per cubic foot = grams per cubic foot × 0.00220462262185
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 pound per cubic foot equals 16.018463374 base units, so dividing one by the other gives the direct gram per cubic foot-to-pound per cubic foot factor of 0.00220462262185.
Simple example
1 g/ft3 × 0.002204622622 = 0.0022046226 lb/ft3
1 gram per cubic foot = 0.0022046226 pounds per cubic foot.
Real-world example
1,000 g/ft3 × 0.002204622622 = 2.204622622 lb/ft3
1,000 grams per cubic foot = 2.204622622 pounds per cubic foot.
Conversion table
| Gram per Cubic foot (g/ft3) | Pound per Cubic foot (lb/ft3) |
|---|---|
| 0.1 g/ft3 | 0.0002204623 lb/ft3 |
| 1 g/ft3 | 0.0022046226 lb/ft3 |
| 10 g/ft3 | 0.0220462262 lb/ft3 |
| 100 g/ft3 | 0.2204622622 lb/ft3 |
| 1,000 g/ft3 | 2.204622622 lb/ft3 |
| 10,000 g/ft3 | 22.04622622 lb/ft3 |
Reverse conversion: Pound per Cubic foot to Gram per Cubic foot
0.0022046226 lb/ft3 × 453.59237 = 0.9999999901 g/ft3
0.0022046226 pounds per cubic foot = 0.9999999901 grams per cubic foot.
grams per cubic foot = pounds per cubic foot × 453.59237
For a page dedicated to this direction, see Pound per Cubic foot to Gram per Cubic foot.
Gram per Cubic foot vs. Pound per Cubic foot
| Aspect | Gram per Cubic foot | Pound per Cubic foot |
|---|---|---|
| Family | mixed metric/US customary density unit | 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 | US construction material density specs (concrete, soil, lumber, insulation) |
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 Pound per Cubic foot
Pound per Cubic foot (lb/ft3) measures density. The US customary unit for expressing density, commonly used in construction and engineering material specifications. It is classified as a US customary density unit.
Where it's used: United States (construction, engineering, materials specifications)
Uses of the Pound per Cubic foot today
- US construction material density specs (concrete, soil, lumber, insulation)
- US engineering material property tables
- Bulk material handling and shipping weight estimates
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.
Pound per Cubic foot — sources
- NIST Handbook 44 — General tables of units including US customary density measures.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per cubic foot are in 1 gram per cubic foot?
1 gram per cubic foot equals 0.0022046226 pounds per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cubic foot to pound per cubic foot?
Multiply the gram per cubic foot value by 0.002204622622. The converter above does this instantly to whatever precision you set.
How do I convert pound per cubic foot back to gram per cubic foot?
Use the reverse factor: 1 pound per cubic foot equals 453.59237 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 pound per cubic foot?
Pound per Cubic foot (lb/ft3) measures density. The US customary unit for expressing density, commonly used in construction and engineering material specifications. It is classified as a US customary density unit.
Is the gram per cubic foot to pound per cubic foot conversion exact?
Yes. Both gram per cubic foot and pound per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 0.002204622622 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.