Mass per volume density.
Long tons per Cubic foot to Pounds per Gallon Converter — long ton/ft3 to lb/gal
Convert Long ton per Cubic foot (long ton/ft3) to Pound per Gallon (lb/gal) using the exact conversion factor (1 long ton per cubic foot = 299.4444444 pound per gallon). See the formula, worked examples, conversion table, and common uses.
Long tons 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 35881.35796 / 119.8264273.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Long tons per Cubic foot to Pounds per Gallon
Long ton 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. Both are mass per volume density units.
Formula
pounds per gallon = long tons per cubic foot × 299.444444444
This factor comes from each unit's defined relationship to the category's base unit: 1 long ton per cubic foot equals 35881.3579577 base units, and 1 pound per gallon equals 119.826427317 base units, so dividing one by the other gives the direct long ton per cubic foot-to-pound per gallon factor of 299.444444444.
Simple example
1 long ton/ft3 × 299.4444444 = 299.4444444 lb/gal
1 long ton per cubic foot = 299.4444444 pounds per gallon.
Real-world example
1,000 long ton/ft3 × 299.4444444 = 299,444.4444 lb/gal
1,000 long tons per cubic foot = 299,444.4444 pounds per gallon.
Conversion table
| Long ton per Cubic foot (long ton/ft3) | Pound per Gallon (lb/gal) |
|---|---|
| 0.1 long ton/ft3 | 29.94444444 lb/gal |
| 1 long ton/ft3 | 299.4444444 lb/gal |
| 10 long ton/ft3 | 2,994.444444 lb/gal |
| 100 long ton/ft3 | 29,944.44444 lb/gal |
| 1,000 long ton/ft3 | 299,444.4444 lb/gal |
| 10,000 long ton/ft3 | 2,994,444.444 lb/gal |
Reverse conversion: Pound per Gallon to Long ton per Cubic foot
299.4444444 lb/gal × 0.003339517625 = 0.9999999999 long ton/ft3
299.4444444 pounds per gallon = 0.9999999999 long tons per cubic foot.
long tons per cubic foot = pounds per gallon × 0.00333951762523
For a page dedicated to this direction, see Pound per Gallon to Long ton per Cubic foot.
Understanding the Long ton per Cubic foot (long ton/ft3)
Mass per volume density.
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
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 long ton per cubic foot?
1 long ton per cubic foot equals 299.4444444 pounds per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert long ton per cubic foot to pound per gallon?
Multiply the long ton per cubic foot value by 299.4444444. The converter above does this instantly to whatever precision you set.
How do I convert pound per gallon back to long ton per cubic foot?
Use the reverse factor: 1 pound per gallon equals 0.0033395176 long tons per cubic foot. You can also use the swap control in the converter above to flip the direction instantly.
What is a long ton per cubic foot?
Long ton per Cubic foot (long ton/ft3) is a unit of density.
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 long ton per cubic foot to pound per gallon conversion exact?
Yes. Both long ton per cubic foot and pound per gallon are defined by fixed standards rather than physical artifacts, so the factor of 299.4444444 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.