Mass per volume density.
Carat per Cubic inches to Pounds per Gallon Converter — ct/in3 to lb/gal
Convert Carat per Cubic inch (ct/in3) to Pound per Gallon (lb/gal) using the exact conversion factor (1 carat per cubic inch = 0.1018535651 pound per gallon). See the formula, worked examples, conversion table, and common uses.
Carat per Cubic inches 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 12.20474882 / 119.8264273.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carat per Cubic inches to Pounds per Gallon
Carat per Cubic inch 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 = carat per cubic inches × 0.101853565129
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per cubic inch equals 12.2047488189 base units, and 1 pound per gallon equals 119.826427317 base units, so dividing one by the other gives the direct carat per cubic inch-to-pound per gallon factor of 0.101853565129.
Simple example
1 ct/in3 × 0.1018535651 = 0.1018535651 lb/gal
1 carat per cubic inch = 0.1018535651 pounds per gallon.
Real-world example
1,000 ct/in3 × 0.1018535651 = 101.8535651 lb/gal
1,000 carat per cubic inches = 101.8535651 pounds per gallon.
Conversion table
| Carat per Cubic inch (ct/in3) | Pound per Gallon (lb/gal) |
|---|---|
| 0.1 ct/in3 | 0.0101853565 lb/gal |
| 1 ct/in3 | 0.1018535651 lb/gal |
| 10 ct/in3 | 1.018535651 lb/gal |
| 100 ct/in3 | 10.18535651 lb/gal |
| 1,000 ct/in3 | 101.8535651 lb/gal |
| 10,000 ct/in3 | 1,018.535651 lb/gal |
Reverse conversion: Pound per Gallon to Carat per Cubic inch
0.1018535651 lb/gal × 9.818016667 = 0.9999999997 ct/in3
0.1018535651 pounds per gallon = 0.9999999997 carat per cubic inches.
carat per cubic inches = pounds per gallon × 9.81801666667
For a page dedicated to this direction, see Pound per Gallon to Carat per Cubic inch.
Understanding the Carat per Cubic inch (ct/in3)
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 carat per cubic inch?
1 carat per cubic inch equals 0.1018535651 pounds per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert carat per cubic inch to pound per gallon?
Multiply the carat per cubic inch value by 0.1018535651. The converter above does this instantly to whatever precision you set.
How do I convert pound per gallon back to carat per cubic inch?
Use the reverse factor: 1 pound per gallon equals 9.818016667 carat per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per cubic inch?
Carat per Cubic inch (ct/in3) 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 carat per cubic inch to pound per gallon conversion exact?
Yes. Both carat per cubic inch and pound per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.1018535651 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.