Mass per volume density.
Pounds per Gallon to Carats per Milliliter Converter — lb/gal to ct/mL
Convert Pound per Gallon (lb/gal) to Carat per Milliliter (ct/mL) using the exact conversion factor (1 pound per gallon = 0.5991321366 carat per milliliter). See the formula, worked examples, conversion table, and common uses.
Pounds per Gallon to Carats per Milliliter 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 119.8264273 / 200.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Gallon to Carats per Milliliter
Pound per Gallon and Carat per Milliliter 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. Pound per Gallon is most often used for us paint and coatings density specifications.
Formula
carats per milliliter = pounds per gallon × 0.599132136584
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per gallon equals 119.826427317 base units, and 1 carat per milliliter equals 200 base units, so dividing one by the other gives the direct pound per gallon-to-carat per milliliter factor of 0.599132136584.
Simple example
1 lb/gal × 0.5991321366 = 0.5991321366 ct/mL
1 pound per gallon = 0.5991321366 carats per milliliter.
Real-world example
1,000 lb/gal × 0.5991321366 = 599.1321366 ct/mL
1,000 pounds per gallon = 599.1321366 carats per milliliter.
Conversion table
| Pound per Gallon (lb/gal) | Carat per Milliliter (ct/mL) |
|---|---|
| 0.1 lb/gal | 0.0599132137 ct/mL |
| 1 lb/gal | 0.5991321366 ct/mL |
| 10 lb/gal | 5.991321366 ct/mL |
| 100 lb/gal | 59.91321366 ct/mL |
| 1,000 lb/gal | 599.1321366 ct/mL |
| 10,000 lb/gal | 5,991.321366 ct/mL |
Reverse conversion: Carat per Milliliter to Pound per Gallon
0.5991321366 ct/mL × 1.66908089 = 1 lb/gal
0.5991321366 carats per milliliter = 1 pounds per gallon.
pounds per gallon = carats per milliliter × 1.6690808904
For a page dedicated to this direction, see Carat per Milliliter to Pound per Gallon.
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
Understanding the Carat per Milliliter (ct/mL)
Mass per volume density.
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 carats per milliliter are in 1 pound per gallon?
1 pound per gallon equals 0.5991321366 carats per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert pound per gallon to carat per milliliter?
Multiply the pound per gallon value by 0.5991321366. The converter above does this instantly to whatever precision you set.
How do I convert carat per milliliter back to pound per gallon?
Use the reverse factor: 1 carat per milliliter equals 1.66908089 pounds per gallon. You can also use the swap control in the converter above to flip the direction instantly.
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.
What is a carat per milliliter?
Carat per Milliliter (ct/mL) is a unit of density.
Is the pound per gallon to carat per milliliter conversion exact?
Yes. Both pound per gallon and carat per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 0.5991321366 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.
Where is the pound per gallon still used today?
United States (paint, fuel, and industrial liquid density specifications)