Mass per volume density.
Carats per Imperial gallon to Grains per Cubic Millimeter Converter — ct/imp gal to gr/mm3
Convert Carat per Imperial gallon (ct/imp gal) to Grain per Cubic Millimeter (gr/mm3) using the exact conversion factor (1 carat per imperial gallon = 6.789289e-7 grain per cubic millimeter). See the formula, worked examples, and conversion table.
Carats per Imperial gallon to Grains 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 0.04399384966 / 64798.91.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Imperial gallon to Grains per Cubic Millimeter
Carat per Imperial gallon and Grain 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
grains per cubic millimeter = carats per imperial gallon × 6.789289e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per imperial gallon equals 0.0439938496598 base units, and 1 grain per cubic millimeter equals 64798.91 base units, so dividing one by the other gives the direct carat per imperial gallon-to-grain per cubic millimeter factor of 6.789289e-7.
Simple example
1 ct/imp gal × 6.789289e-7 = 6.789289e-7 gr/mm3
1 carat per imperial gallon = 6.789289e-7 grains per cubic millimeter.
Real-world example
1,000 ct/imp gal × 6.789289e-7 = 0.0006789289 gr/mm3
1,000 carats per imperial gallon = 0.0006789289 grains per cubic millimeter.
Conversion table
| Carat per Imperial gallon (ct/imp gal) | Grain per Cubic Millimeter (gr/mm3) |
|---|---|
| 0.1 ct/imp gal | 6.789289e-8 gr/mm3 |
| 1 ct/imp gal | 6.789289e-7 gr/mm3 |
| 10 ct/imp gal | 0.0000067893 gr/mm3 |
| 100 ct/imp gal | 0.0000678929 gr/mm3 |
| 1,000 ct/imp gal | 0.0006789289 gr/mm3 |
| 10,000 ct/imp gal | 0.0067892885 gr/mm3 |
Reverse conversion: Grain per Cubic Millimeter to Carat per Imperial gallon
6.789289e-7 gr/mm3 × 1472908.384 = 1.000000069 ct/imp gal
6.789289e-7 grains per cubic millimeter = 1.000000069 carats per imperial gallon.
carats per imperial gallon = grains per cubic millimeter × 1472908.38381
For a page dedicated to this direction, see Grain per Cubic Millimeter to Carat per Imperial gallon.
Understanding the Carat per Imperial gallon (ct/imp gal)
Mass per volume density.
Understanding the Grain per Cubic Millimeter (gr/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per cubic millimeter are in 1 carat per imperial gallon?
1 carat per imperial gallon equals 6.789289e-7 grains per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert carat per imperial gallon to grain per cubic millimeter?
Multiply the carat per imperial gallon value by 6.789289e-7. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic millimeter back to carat per imperial gallon?
Use the reverse factor: 1 grain per cubic millimeter equals 1,472,908.384 carats per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per imperial gallon?
Carat per Imperial gallon (ct/imp gal) is a unit of density.
What is a grain per cubic millimeter?
Grain per Cubic Millimeter (gr/mm3) is a unit of density.
Is the carat per imperial gallon to grain per cubic millimeter conversion exact?
Yes. Both carat per imperial gallon and grain per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 6.789289e-7 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.