Mass per volume density.
Grams per Cubic foot to Kilograms per Gallon Converter — g/ft3 to kg/gal
Convert Gram per Cubic foot (g/ft3) to Kilogram per Gallon (kg/gal) using the exact conversion factor (1 gram per cubic foot = 0.0001336806 kilogram per gallon). See the formula, worked examples, conversion table, unit comparison, and common uses.
Grams per Cubic foot to Kilograms 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 0.03531466672 / 264.1720524.
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 Gallon
Gram per Cubic foot and Kilogram 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. 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 gallon = grams per cubic foot × 0.000133680555556
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 gallon equals 264.172052358 base units, so dividing one by the other gives the direct gram per cubic foot-to-kilogram per gallon factor of 0.000133680555556.
Simple example
1 g/ft3 × 0.0001336805556 = 0.0001336806 kg/gal
1 gram per cubic foot = 0.0001336806 kilograms per gallon.
Real-world example
1,000 g/ft3 × 0.0001336805556 = 0.1336805556 kg/gal
1,000 grams per cubic foot = 0.1336805556 kilograms per gallon.
Conversion table
| Gram per Cubic foot (g/ft3) | Kilogram per Gallon (kg/gal) |
|---|---|
| 0.1 g/ft3 | 0.0000133681 kg/gal |
| 1 g/ft3 | 0.0001336806 kg/gal |
| 10 g/ft3 | 0.0013368056 kg/gal |
| 100 g/ft3 | 0.0133680556 kg/gal |
| 1,000 g/ft3 | 0.1336805556 kg/gal |
| 10,000 g/ft3 | 1.336805556 kg/gal |
Reverse conversion: Kilogram per Gallon to Gram per Cubic foot
0.0001336806 kg/gal × 7480.519481 = 1.000000332 g/ft3
0.0001336806 kilograms per gallon = 1.000000332 grams per cubic foot.
grams per cubic foot = kilograms per gallon × 7480.51948052
For a page dedicated to this direction, see Kilogram per Gallon to Gram per Cubic foot.
Gram per Cubic foot vs. Kilogram per Gallon
| Aspect | Gram per Cubic foot | Kilogram per Gallon |
|---|---|---|
| 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 liquid density such as fuel or industrial liquids in kilograms per gallon — in practice, kilograms per liter (metric) and pounds per gallon (US customary) are the specific pairings more commonly seen in fuel and liquid-density 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 Gallon
Kilogram per Gallon (kg/gal) measures density. A mathematically valid way to express liquid density in kilograms per US gallon. It is classified as a mixed metric/US customary density unit.
Uses of the Kilogram per Gallon today
- Can be used to express liquid density such as fuel or industrial liquids in kilograms per gallon — in practice, kilograms per liter (metric) and pounds per gallon (US customary) are the specific pairings more commonly seen in fuel and liquid-density 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 Gallon — sources
- Fuel and petroleum liquid-density references — Liquid density figures for fuels are typically reported in kg/L, kg/m³, or lb/gal rather than kg/gal.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per gallon are in 1 gram per cubic foot?
1 gram per cubic foot equals 0.0001336806 kilograms per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cubic foot to kilogram per gallon?
Multiply the gram per cubic foot value by 0.0001336805556. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per gallon back to gram per cubic foot?
Use the reverse factor: 1 kilogram per gallon equals 7,480.519481 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 gallon?
Kilogram per Gallon (kg/gal) measures density. A mathematically valid way to express liquid density in kilograms per US gallon. It is classified as a mixed metric/US customary density unit.
Is the gram per cubic foot to kilogram per gallon conversion exact?
Yes. Both gram per cubic foot and kilogram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.0001336805556 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.