Mass per volume density.
Stones per Cubic Millimeter to Grains per Cubic Centimeter Converter — st/mm3 to gr/cm3
Convert Stone per Cubic Millimeter (st/mm3) to Grain per Cubic Centimeter (gr/cm3) using the exact conversion factor (1 stone per cubic millimeter = 98,000,000 grain per cubic centimeter). See the formula, worked examples, and conversion table.
Stones per Cubic Millimeter to Grains per Cubic Centimeter 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 6.35029318e+9 / 64.79891.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Cubic Millimeter to Grains per Cubic Centimeter
Stone per Cubic Millimeter and Grain per Cubic Centimeter 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 cubic centimeter = stones per cubic millimeter × 98000000
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per cubic millimeter equals 6350293180 base units, and 1 grain per cubic centimeter equals 64.79891 base units, so dividing one by the other gives the direct stone per cubic millimeter-to-grain per cubic centimeter factor of 98000000.
Simple example
1 st/mm3 × 98000000 = 98,000,000 gr/cm3
1 stone per cubic millimeter = 98,000,000 grains per cubic centimeter.
Real-world example
1,000 st/mm3 × 98000000 = 98,000,000,000 gr/cm3
1,000 stones per cubic millimeter = 98,000,000,000 grains per cubic centimeter.
Conversion table
| Stone per Cubic Millimeter (st/mm3) | Grain per Cubic Centimeter (gr/cm3) |
|---|---|
| 0.1 st/mm3 | 9,800,000 gr/cm3 |
| 1 st/mm3 | 98,000,000 gr/cm3 |
| 10 st/mm3 | 980,000,000 gr/cm3 |
| 100 st/mm3 | 9,800,000,000 gr/cm3 |
| 1,000 st/mm3 | 98,000,000,000 gr/cm3 |
| 10,000 st/mm3 | 980,000,000,000 gr/cm3 |
Reverse conversion: Grain per Cubic Centimeter to Stone per Cubic Millimeter
1 gr/cm3 × 1.020408e-8 = 1.020408e-8 st/mm3
1 grain per cubic centimeter = 1.020408e-8 stones per cubic millimeter.
stones per cubic millimeter = grains per cubic centimeter × 1.020408e-8
For a page dedicated to this direction, see Grain per Cubic Centimeter to Stone per Cubic Millimeter.
Understanding the Stone per Cubic Millimeter (st/mm3)
Mass per volume density.
Understanding the Grain per Cubic Centimeter (gr/cm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per cubic centimeter are in 1 stone per cubic millimeter?
1 stone per cubic millimeter equals 98,000,000 grains per cubic centimeter, using the exact defined conversion factor rather than an estimate.
How do I convert stone per cubic millimeter to grain per cubic centimeter?
Multiply the stone per cubic millimeter value by 98000000. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic centimeter back to stone per cubic millimeter?
Use the reverse factor: 1 grain per cubic centimeter equals 1.020408e-8 stones per cubic millimeter. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per cubic millimeter?
Stone per Cubic Millimeter (st/mm3) is a unit of density.
What is a grain per cubic centimeter?
Grain per Cubic Centimeter (gr/cm3) is a unit of density.
Is the stone per cubic millimeter to grain per cubic centimeter conversion exact?
Yes. Both stone per cubic millimeter and grain per cubic centimeter are defined by fixed standards rather than physical artifacts, so the factor of 98000000 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.