Mass per volume density.
Carats per Cup to Stones per Imperial gallon Converter — ct/cup to st/imp gal
Convert Carat per Cup (ct/cup) to Stone per Imperial gallon (st/imp gal) using the exact conversion factor (1 carat per cup = 0.0006051752 stone per imperial gallon). See the formula, worked examples, and conversion table.
Carats per Cup to Stones per Imperial 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 0.8453505675 / 1396.869217.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Cup to Stones per Imperial gallon
Carat per Cup and Stone per Imperial 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
stones per imperial gallon = carats per cup × 0.00060517517108
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per cup equals 0.845350567546 base units, and 1 stone per imperial gallon equals 1396.86921728 base units, so dividing one by the other gives the direct carat per cup-to-stone per imperial gallon factor of 0.00060517517108.
Simple example
1 ct/cup × 0.0006051751711 = 0.0006051752 st/imp gal
1 carat per cup = 0.0006051752 stones per imperial gallon.
Real-world example
1,000 ct/cup × 0.0006051751711 = 0.6051751711 st/imp gal
1,000 carats per cup = 0.6051751711 stones per imperial gallon.
Conversion table
| Carat per Cup (ct/cup) | Stone per Imperial gallon (st/imp gal) |
|---|---|
| 0.1 ct/cup | 0.0000605175 st/imp gal |
| 1 ct/cup | 0.0006051752 st/imp gal |
| 10 ct/cup | 0.0060517517 st/imp gal |
| 100 ct/cup | 0.0605175171 st/imp gal |
| 1,000 ct/cup | 0.6051751711 st/imp gal |
| 10,000 ct/cup | 6.051751711 st/imp gal |
Reverse conversion: Stone per Imperial gallon to Carat per Cup
0.0006051752 st/imp gal × 1652.414124 = 1.000000048 ct/cup
0.0006051752 stones per imperial gallon = 1.000000048 carats per cup.
carats per cup = stones per imperial gallon × 1652.41412369
For a page dedicated to this direction, see Stone per Imperial gallon to Carat per Cup.
Understanding the Carat per Cup (ct/cup)
Mass per volume density.
Understanding the Stone per Imperial gallon (st/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per imperial gallon are in 1 carat per cup?
1 carat per cup equals 0.0006051752 stones per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert carat per cup to stone per imperial gallon?
Multiply the carat per cup value by 0.0006051751711. The converter above does this instantly to whatever precision you set.
How do I convert stone per imperial gallon back to carat per cup?
Use the reverse factor: 1 stone per imperial gallon equals 1,652.414124 carats per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per cup?
Carat per Cup (ct/cup) is a unit of density.
What is a stone per imperial gallon?
Stone per Imperial gallon (st/imp gal) is a unit of density.
Is the carat per cup to stone per imperial gallon conversion exact?
Yes. Both carat per cup and stone per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.0006051751711 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.