Mass per volume density.
Stones per Gallon to Carats per Milliliter Converter — st/gal to ct/mL
Convert Stone per Gallon (st/gal) to Carat per Milliliter (ct/mL) using the exact conversion factor (1 stone per gallon = 8.387849912 carat per milliliter). See the formula, worked examples, and conversion table.
Stones 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 1677.569982 / 200.
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 Carats per Milliliter
Stone 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. Both are mass per volume density units.
Formula
carats per milliliter = stones per gallon × 8.38784991218
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 milliliter equals 200 base units, so dividing one by the other gives the direct stone per gallon-to-carat per milliliter factor of 8.38784991218.
Simple example
1 st/gal × 8.387849912 = 8.387849912 ct/mL
1 stone per gallon = 8.387849912 carats per milliliter.
Real-world example
1,000 st/gal × 8.387849912 = 8,387.849912 ct/mL
1,000 stones per gallon = 8,387.849912 carats per milliliter.
Conversion table
| Stone per Gallon (st/gal) | Carat per Milliliter (ct/mL) |
|---|---|
| 0.1 st/gal | 0.8387849912 ct/mL |
| 1 st/gal | 8.387849912 ct/mL |
| 10 st/gal | 83.87849912 ct/mL |
| 100 st/gal | 838.7849912 ct/mL |
| 1,000 st/gal | 8,387.849912 ct/mL |
| 10,000 st/gal | 83,878.49912 ct/mL |
Reverse conversion: Carat per Milliliter to Stone per Gallon
8.387849912 ct/mL × 0.1192200636 = 1 st/gal
8.387849912 carats per milliliter = 1 stones per gallon.
stones per gallon = carats per milliliter × 0.1192200636
For a page dedicated to this direction, see Carat per Milliliter to Stone per Gallon.
Understanding the Stone per Gallon (st/gal)
Mass per volume density.
Understanding the Carat per Milliliter (ct/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per milliliter are in 1 stone per gallon?
1 stone per gallon equals 8.387849912 carats per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert stone per gallon to carat per milliliter?
Multiply the stone per gallon value by 8.387849912. The converter above does this instantly to whatever precision you set.
How do I convert carat per milliliter back to stone per gallon?
Use the reverse factor: 1 carat per milliliter equals 0.1192200636 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 milliliter?
Carat per Milliliter (ct/mL) is a unit of density.
Is the stone per gallon to carat per milliliter conversion exact?
Yes. Both stone per gallon and carat per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 8.387849912 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.