Mass per volume density.
Kilograms per Cubic foot to Pounds per Gallon Converter — kg/ft3 to lb/gal
Convert Kilogram per Cubic foot (kg/ft3) to Pound per Gallon (lb/gal) using the exact conversion factor (1 kilogram per cubic foot = 0.2947151769 pound per gallon). See the formula, worked examples, conversion table, unit comparison, and common uses.
Kilograms per Cubic foot to Pounds per Gallon 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 35.31466672 / 119.8264273.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Cubic foot to Pounds per Gallon
Kilogram per Cubic foot and Pound per Gallon 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. Kilogram per Cubic foot is most often used for 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.
Formula
pounds per gallon = kilograms per cubic foot × 0.294715176879
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per cubic foot equals 35.3146667215 base units, and 1 pound per gallon equals 119.826427317 base units, so dividing one by the other gives the direct kilogram per cubic foot-to-pound per gallon factor of 0.294715176879.
Simple example
1 kg/ft3 × 0.2947151769 = 0.2947151769 lb/gal
1 kilogram per cubic foot = 0.2947151769 pounds per gallon.
Real-world example
1,000 kg/ft3 × 0.2947151769 = 294.7151769 lb/gal
1,000 kilograms per cubic foot = 294.7151769 pounds per gallon.
Conversion table
| Kilogram per Cubic foot (kg/ft3) | Pound per Gallon (lb/gal) |
|---|---|
| 0.1 kg/ft3 | 0.0294715177 lb/gal |
| 1 kg/ft3 | 0.2947151769 lb/gal |
| 10 kg/ft3 | 2.947151769 lb/gal |
| 100 kg/ft3 | 29.47151769 lb/gal |
| 1,000 kg/ft3 | 294.7151769 lb/gal |
| 10,000 kg/ft3 | 2,947.151769 lb/gal |
Reverse conversion: Pound per Gallon to Kilogram per Cubic foot
0.2947151769 lb/gal × 3.39310656 = 1 kg/ft3
0.2947151769 pounds per gallon = 1 kilograms per cubic foot.
kilograms per cubic foot = pounds per gallon × 3.39310656
For a page dedicated to this direction, see Pound per Gallon to Kilogram per Cubic foot.
Kilogram per Cubic foot vs. Pound per Gallon
| Aspect | Kilogram per Cubic foot | Pound per Gallon |
|---|---|---|
| Family | mixed metric/US customary density unit | US customary density unit |
| Typical use | 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 | US paint and coatings density specifications |
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
Understanding the Pound per Gallon
Pound per Gallon (lb/gal) measures density. The US customary unit for liquid density, based on the US gallon (231 cubic inches). It is classified as a US customary density unit.
Where it's used: United States (paint, fuel, and industrial liquid density specifications)
lb/gal vs. lb/ft³. Both are US customary density units; they're related through the real, fixed relationship between the US gallon and the cubic foot (1 cubic foot ≈ 7.48 US gallons), not a round conversion factor.
Uses of the Pound per Gallon today
- US paint and coatings density specifications
- US fuel and petroleum liquid density specs
- Industrial liquid handling and shipping weight calculations
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.
Pound per Gallon — 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 gallon are in 1 kilogram per cubic foot?
1 kilogram per cubic foot equals 0.2947151769 pounds per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per cubic foot to pound per gallon?
Multiply the kilogram per cubic foot value by 0.2947151769. The converter above does this instantly to whatever precision you set.
How do I convert pound per gallon back to kilogram per cubic foot?
Use the reverse factor: 1 pound per gallon equals 3.39310656 kilograms per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
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.
What is a pound per gallon?
Pound per Gallon (lb/gal) measures density. The US customary unit for liquid density, based on the US gallon (231 cubic inches). It is classified as a US customary density unit.
Is the kilogram per cubic foot to pound per gallon conversion exact?
Yes. Both kilogram per cubic foot and pound per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.2947151769 used above is exact to as many digits as you choose to display.
What is the difference between lb/gal vs. lb/ft³?
Both are US customary density units; they're related through the real, fixed relationship between the US gallon and the cubic foot (1 cubic foot ≈ 7.48 US gallons), not a round conversion factor.