Mass per volume density.
Kilograms per Imperial gallon to Pounds per Cubic foot Converter — kg/imp gal to lb/ft3
Convert Kilogram per Imperial gallon (kg/imp gal) to Pound per Cubic foot (lb/ft3) using the exact conversion factor (1 kilogram per imperial gallon = 13.73223156 pound per cubic foot). See the formula, worked examples, conversion table, unit comparison, and common uses.
Kilograms per Imperial gallon 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 219.9692483 / 16.01846337.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Imperial gallon to Pounds per Cubic foot
Kilogram per Imperial gallon 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. Kilogram per Imperial gallon is most often used for can be used to express liquid density in uk/commonwealth contexts that reference the imperial gallon — in practice, kilograms per liter is the more commonly seen metric density unit even in these regions.
Formula
pounds per cubic foot = kilograms per imperial gallon × 13.7322315608
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per imperial gallon equals 219.969248299 base units, and 1 pound per cubic foot equals 16.018463374 base units, so dividing one by the other gives the direct kilogram per imperial gallon-to-pound per cubic foot factor of 13.7322315608.
Simple example
1 kg/imp gal × 13.73223156 = 13.73223156 lb/ft3
1 kilogram per imperial gallon = 13.73223156 pounds per cubic foot.
Real-world example
1,000 kg/imp gal × 13.73223156 = 13,732.23156 lb/ft3
1,000 kilograms per imperial gallon = 13,732.23156 pounds per cubic foot.
Conversion table
| Kilogram per Imperial gallon (kg/imp gal) | Pound per Cubic foot (lb/ft3) |
|---|---|
| 0.1 kg/imp gal | 1.373223156 lb/ft3 |
| 1 kg/imp gal | 13.73223156 lb/ft3 |
| 10 kg/imp gal | 137.3223156 lb/ft3 |
| 100 kg/imp gal | 1,373.223156 lb/ft3 |
| 1,000 kg/imp gal | 13,732.23156 lb/ft3 |
| 10,000 kg/imp gal | 137,322.3156 lb/ft3 |
Reverse conversion: Pound per Cubic foot to Kilogram per Imperial gallon
13.73223156 lb/ft3 × 0.07282137616 = 0.9999999999 kg/imp gal
13.73223156 pounds per cubic foot = 0.9999999999 kilograms per imperial gallon.
kilograms per imperial gallon = pounds per cubic foot × 0.0728213761597
For a page dedicated to this direction, see Pound per Cubic foot to Kilogram per Imperial gallon.
Kilogram per Imperial gallon vs. Pound per Cubic foot
| Aspect | Kilogram per Imperial gallon | Pound per Cubic foot |
|---|---|---|
| Family | mixed metric/UK customary density unit | US customary density unit |
| Typical use | Can be used to express liquid density in UK/Commonwealth contexts that reference the imperial gallon — in practice, kilograms per liter is the more commonly seen metric density unit even in these regions | US construction material density specs (concrete, soil, lumber, insulation) |
Understanding the Kilogram per Imperial gallon
Kilogram per Imperial gallon (kg/imp gal) measures density. A mathematically valid way to express liquid density in kilograms per imperial gallon. It is classified as a mixed metric/UK customary density unit.
Uses of the Kilogram per Imperial gallon today
- Can be used to express liquid density in UK/Commonwealth contexts that reference the imperial gallon — in practice, kilograms per liter is the more commonly seen metric density unit even in these regions
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
Kilogram per Imperial gallon — sources
- UK/Commonwealth liquid-measurement references — The imperial gallon remains in some UK/Commonwealth commercial use, but liquid density is more commonly quoted in kilograms per liter.
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 kilogram per imperial gallon?
1 kilogram per imperial gallon equals 13.73223156 pounds per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per imperial gallon to pound per cubic foot?
Multiply the kilogram per imperial gallon value by 13.73223156. The converter above does this instantly to whatever precision you set.
How do I convert pound per cubic foot back to kilogram per imperial gallon?
Use the reverse factor: 1 pound per cubic foot equals 0.0728213762 kilograms per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram per imperial gallon?
Kilogram per Imperial gallon (kg/imp gal) measures density. A mathematically valid way to express liquid density in kilograms per imperial gallon. It is classified as a mixed metric/UK 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 kilogram per imperial gallon to pound per cubic foot conversion exact?
Yes. Both kilogram per imperial gallon and pound per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 13.73223156 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.