Mass per volume density.
Stones per Cup to Kilograms per Imperial gallon Converter — st/cup to kg/imp gal
Convert Stone per Cup (st/cup) to Kilogram per Imperial gallon (kg/imp gal) using the exact conversion factor (1 stone per cup = 122.0221459 kilogram per imperial gallon). See the formula, worked examples, conversion table, and common uses.
Stones per Cup to Kilograms 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 26841.11972 / 219.9692483.
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 Kilograms per Imperial gallon
Stone per Cup and Kilogram 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
kilograms per imperial gallon = stones per cup × 122.022145943
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 kilogram per imperial gallon equals 219.969248299 base units, so dividing one by the other gives the direct stone per cup-to-kilogram per imperial gallon factor of 122.022145943.
Simple example
1 st/cup × 122.0221459 = 122.0221459 kg/imp gal
1 stone per cup = 122.0221459 kilograms per imperial gallon.
Real-world example
1,000 st/cup × 122.0221459 = 122,022.1459 kg/imp gal
1,000 stones per cup = 122,022.1459 kilograms per imperial gallon.
Conversion table
| Stone per Cup (st/cup) | Kilogram per Imperial gallon (kg/imp gal) |
|---|---|
| 0.1 st/cup | 12.20221459 kg/imp gal |
| 1 st/cup | 122.0221459 kg/imp gal |
| 10 st/cup | 1,220.221459 kg/imp gal |
| 100 st/cup | 12,202.21459 kg/imp gal |
| 1,000 st/cup | 122,022.1459 kg/imp gal |
| 10,000 st/cup | 1,220,221.459 kg/imp gal |
Reverse conversion: Kilogram per Imperial gallon to Stone per Cup
122.0221459 kg/imp gal × 0.008195233679 = 0.9999999996 st/cup
122.0221459 kilograms per imperial gallon = 0.9999999996 stones per cup.
stones per cup = kilograms per imperial gallon × 0.00819523367885
For a page dedicated to this direction, see Kilogram per Imperial gallon to Stone per Cup.
Understanding the Stone per Cup (st/cup)
Mass per volume density.
Understanding the Kilogram per Imperial gallon
Kilogram per Imperial gallon (kg/imp gal) measures density. A mathematically valid way to express liquid density in kilograms per imperial gallon. It is classified as a mixed metric/UK customary density unit.
Uses of the Kilogram per Imperial gallon today
- Can be used to express liquid density in UK/Commonwealth contexts that reference the imperial gallon — in practice, kilograms per liter is the more commonly seen metric density unit even in these regions
Kilogram per Imperial gallon — sources
- UK/Commonwealth liquid-measurement references — The imperial gallon remains in some UK/Commonwealth commercial use, but liquid density is more commonly quoted in kilograms per liter.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per imperial gallon are in 1 stone per cup?
1 stone per cup equals 122.0221459 kilograms per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert stone per cup to kilogram per imperial gallon?
Multiply the stone per cup value by 122.0221459. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per imperial gallon back to stone per cup?
Use the reverse factor: 1 kilogram per imperial gallon equals 0.0081952337 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 kilogram per imperial gallon?
Kilogram per Imperial gallon (kg/imp gal) measures density. A mathematically valid way to express liquid density in kilograms per imperial gallon. It is classified as a mixed metric/UK customary density unit.
Is the stone per cup to kilogram per imperial gallon conversion exact?
Yes. Both stone per cup and kilogram per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 122.0221459 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.