Mass per volume density.
Stones per Liter to Grains per Cup Converter — st/L to gr/cup
Convert Stone per Liter (st/L) to Grain per Cup (gr/cup) using the exact conversion factor (1 stone per liter = 23,185.64718 grain per cup). See the formula, worked examples, and conversion table.
Stones per Liter to Grains per Cup 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 6350.29318 / 0.2738889767.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Liter to Grains per Cup
Stone per Liter and Grain per Cup 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
grains per cup = stones per liter × 23185.647177
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per liter equals 6350.29318 base units, and 1 grain per cup equals 0.273888976724 base units, so dividing one by the other gives the direct stone per liter-to-grain per cup factor of 23185.647177.
Simple example
1 st/L × 23185.64718 = 23,185.64718 gr/cup
1 stone per liter = 23,185.64718 grains per cup.
Real-world example
1,000 st/L × 23185.64718 = 23,185,647.18 gr/cup
1,000 stones per liter = 23,185,647.18 grains per cup.
Conversion table
| Stone per Liter (st/L) | Grain per Cup (gr/cup) |
|---|---|
| 0.1 st/L | 2,318.564718 gr/cup |
| 1 st/L | 23,185.64718 gr/cup |
| 10 st/L | 231,856.4718 gr/cup |
| 100 st/L | 2,318,564.718 gr/cup |
| 1,000 st/L | 23,185,647.18 gr/cup |
| 10,000 st/L | 231,856,471.8 gr/cup |
Reverse conversion: Grain per Cup to Stone per Liter
1 gr/cup × 0.000043130131 = 0.0000431301 st/L
1 grain per cup = 0.0000431301 stones per liter.
stones per liter = grains per cup × 0.0000431301309972
For a page dedicated to this direction, see Grain per Cup to Stone per Liter.
Understanding the Stone per Liter (st/L)
Mass per volume density.
Understanding the Grain per Cup (gr/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per cup are in 1 stone per liter?
1 stone per liter equals 23,185.64718 grains per cup, using the exact defined conversion factor rather than an estimate.
How do I convert stone per liter to grain per cup?
Multiply the stone per liter value by 23185.64718. The converter above does this instantly to whatever precision you set.
How do I convert grain per cup back to stone per liter?
Use the reverse factor: 1 grain per cup equals 0.0000431301 stones per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per liter?
Stone per Liter (st/L) is a unit of density.
What is a grain per cup?
Grain per Cup (gr/cup) is a unit of density.
Is the stone per liter to grain per cup conversion exact?
Yes. Both stone per liter and grain per cup are defined by fixed standards rather than physical artifacts, so the factor of 23185.64718 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.