Mass per volume density.
Grams per Gallon to Carats per Cubic Millimeter Converter — g/gal to ct/mm3
Convert Gram per Gallon (g/gal) to Carat per Cubic Millimeter (ct/mm3) using the exact conversion factor (1 gram per gallon = 0.0000013209 carat per cubic millimeter). See the formula, worked examples, and conversion table.
Grams per Gallon to Carats per Cubic Millimeter 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 0.2641720524 / 200000.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Gallon to Carats per Cubic Millimeter
Gram per Gallon and Carat per Cubic Millimeter 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
carats per cubic millimeter = grams per gallon × 0.00000132086026179
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per gallon equals 0.264172052358 base units, and 1 carat per cubic millimeter equals 200000 base units, so dividing one by the other gives the direct gram per gallon-to-carat per cubic millimeter factor of 0.00000132086026179.
Simple example
1 g/gal × 0.000001320860262 = 0.0000013209 ct/mm3
1 gram per gallon = 0.0000013209 carats per cubic millimeter.
Real-world example
1,000 g/gal × 0.000001320860262 = 0.0013208603 ct/mm3
1,000 grams per gallon = 0.0013208603 carats per cubic millimeter.
Conversion table
| Gram per Gallon (g/gal) | Carat per Cubic Millimeter (ct/mm3) |
|---|---|
| 0.1 g/gal | 1.32086e-7 ct/mm3 |
| 1 g/gal | 0.0000013209 ct/mm3 |
| 10 g/gal | 0.0000132086 ct/mm3 |
| 100 g/gal | 0.000132086 ct/mm3 |
| 1,000 g/gal | 0.0013208603 ct/mm3 |
| 10,000 g/gal | 0.0132086026 ct/mm3 |
Reverse conversion: Carat per Cubic Millimeter to Gram per Gallon
0.0000013209 ct/mm3 × 757082.3568 = 1.000030085 g/gal
0.0000013209 carats per cubic millimeter = 1.000030085 grams per gallon.
grams per gallon = carats per cubic millimeter × 757082.3568
For a page dedicated to this direction, see Carat per Cubic Millimeter to Gram per Gallon.
Understanding the Gram per Gallon (g/gal)
Mass per volume density.
Understanding the Carat per Cubic Millimeter (ct/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per cubic millimeter are in 1 gram per gallon?
1 gram per gallon equals 0.0000013209 carats per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per gallon to carat per cubic millimeter?
Multiply the gram per gallon value by 0.000001320860262. The converter above does this instantly to whatever precision you set.
How do I convert carat per cubic millimeter back to gram per gallon?
Use the reverse factor: 1 carat per cubic millimeter equals 757,082.3568 grams per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per gallon?
Gram per Gallon (g/gal) is a unit of density.
What is a carat per cubic millimeter?
Carat per Cubic Millimeter (ct/mm3) is a unit of density.
Is the gram per gallon to carat per cubic millimeter conversion exact?
Yes. Both gram per gallon and carat per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.000001320860262 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.