Mass per volume density.
Stones per Cup to Carats per Gallon Converter — st/cup to ct/gal
Convert Stone per Cup (st/cup) to Carat per Gallon (ct/gal) using the exact conversion factor (1 stone per cup = 508,023.4544 carat per gallon). See the formula, worked examples, and conversion table.
Stones per Cup to Carats per Gallon 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 26841.11972 / 0.05283441047.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Cup to Carats per Gallon
Stone per Cup and Carat per Gallon 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 gallon = stones per cup × 508023.4544
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per cup equals 26841.119719 base units, and 1 carat per gallon equals 0.0528344104716 base units, so dividing one by the other gives the direct stone per cup-to-carat per gallon factor of 508023.4544.
Simple example
1 st/cup × 508023.4544 = 508,023.4544 ct/gal
1 stone per cup = 508,023.4544 carats per gallon.
Real-world example
1,000 st/cup × 508023.4544 = 508,023,454.4 ct/gal
1,000 stones per cup = 508,023,454.4 carats per gallon.
Conversion table
| Stone per Cup (st/cup) | Carat per Gallon (ct/gal) |
|---|---|
| 0.1 st/cup | 50,802.34544 ct/gal |
| 1 st/cup | 508,023.4544 ct/gal |
| 10 st/cup | 5,080,234.544 ct/gal |
| 100 st/cup | 50,802,345.44 ct/gal |
| 1,000 st/cup | 508,023,454.4 ct/gal |
| 10,000 st/cup | 5,080,234,544 ct/gal |
Reverse conversion: Carat per Gallon to Stone per Cup
1 ct/gal × 0.000001968413055 = 0.0000019684 st/cup
1 carat per gallon = 0.0000019684 stones per cup.
stones per cup = carats per gallon × 0.00000196841305522
For a page dedicated to this direction, see Carat per Gallon to Stone per Cup.
Understanding the Stone per Cup (st/cup)
Mass per volume density.
Understanding the Carat per Gallon (ct/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per gallon are in 1 stone per cup?
1 stone per cup equals 508,023.4544 carats per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert stone per cup to carat per gallon?
Multiply the stone per cup value by 508023.4544. The converter above does this instantly to whatever precision you set.
How do I convert carat per gallon back to stone per cup?
Use the reverse factor: 1 carat per gallon equals 0.0000019684 stones per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per cup?
Stone per Cup (st/cup) is a unit of density.
What is a carat per gallon?
Carat per Gallon (ct/gal) is a unit of density.
Is the stone per cup to carat per gallon conversion exact?
Yes. Both stone per cup and carat per gallon are defined by fixed standards rather than physical artifacts, so the factor of 508023.4544 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.