Mass per volume density.
Stones per Gallon to Carat per Cubic inches Converter — st/gal to ct/in3
Convert Stone per Gallon (st/gal) to Carat per Cubic inch (ct/in3) using the exact conversion factor (1 stone per gallon = 137.4522333 carat per cubic inch). See the formula, worked examples, and conversion table.
Stones per Gallon to Carat per Cubic inches 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 1677.569982 / 12.20474882.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Gallon to Carat per Cubic inches
Stone per Gallon and Carat per Cubic inch 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
carat per cubic inches = stones per gallon × 137.452233333
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per gallon equals 1677.56998244 base units, and 1 carat per cubic inch equals 12.2047488189 base units, so dividing one by the other gives the direct stone per gallon-to-carat per cubic inch factor of 137.452233333.
Simple example
1 st/gal × 137.4522333 = 137.4522333 ct/in3
1 stone per gallon = 137.4522333 carat per cubic inches.
Real-world example
1,000 st/gal × 137.4522333 = 137,452.2333 ct/in3
1,000 stones per gallon = 137,452.2333 carat per cubic inches.
Conversion table
| Stone per Gallon (st/gal) | Carat per Cubic inch (ct/in3) |
|---|---|
| 0.1 st/gal | 13.74522333 ct/in3 |
| 1 st/gal | 137.4522333 ct/in3 |
| 10 st/gal | 1,374.522333 ct/in3 |
| 100 st/gal | 13,745.22333 ct/in3 |
| 1,000 st/gal | 137,452.2333 ct/in3 |
| 10,000 st/gal | 1,374,522.333 ct/in3 |
Reverse conversion: Carat per Cubic inch to Stone per Gallon
137.4522333 ct/in3 × 0.007275254652 = 0.9999999998 st/gal
137.4522333 carat per cubic inches = 0.9999999998 stones per gallon.
stones per gallon = carat per cubic inches × 0.0072752546521
For a page dedicated to this direction, see Carat per Cubic inch to Stone per Gallon.
Understanding the Stone per Gallon (st/gal)
Mass per volume density.
Understanding the Carat per Cubic inch (ct/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carat per cubic inches are in 1 stone per gallon?
1 stone per gallon equals 137.4522333 carat per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert stone per gallon to carat per cubic inch?
Multiply the stone per gallon value by 137.4522333. The converter above does this instantly to whatever precision you set.
How do I convert carat per cubic inch back to stone per gallon?
Use the reverse factor: 1 carat per cubic inch equals 0.0072752547 stones per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per gallon?
Stone per Gallon (st/gal) is a unit of density.
What is a carat per cubic inch?
Carat per Cubic inch (ct/in3) is a unit of density.
Is the stone per gallon to carat per cubic inch conversion exact?
Yes. Both stone per gallon and carat per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 137.4522333 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.