Mass per volume density.
Carats per Cubic Millimeter to Stones per Fluid ounce Converter — ct/mm3 to st/fl oz
Convert Carat per Cubic Millimeter (ct/mm3) to Stone per Fluid ounce (st/fl oz) using the exact conversion factor (1 carat per cubic millimeter = 0.9314067469 stone per fluid ounce). See the formula, worked examples, and conversion table.
Carats per Cubic Millimeter to Stones per Fluid ounce 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 200000 / 214728.9578.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Cubic Millimeter to Stones per Fluid ounce
Carat per Cubic Millimeter and Stone per Fluid ounce 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 fluid ounce = carats per cubic millimeter × 0.931406746877
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per cubic millimeter equals 200000 base units, and 1 stone per fluid ounce equals 214728.957752 base units, so dividing one by the other gives the direct carat per cubic millimeter-to-stone per fluid ounce factor of 0.931406746877.
Simple example
1 ct/mm3 × 0.9314067469 = 0.9314067469 st/fl oz
1 carat per cubic millimeter = 0.9314067469 stones per fluid ounce.
Real-world example
1,000 ct/mm3 × 0.9314067469 = 931.4067469 st/fl oz
1,000 carats per cubic millimeter = 931.4067469 stones per fluid ounce.
Conversion table
| Carat per Cubic Millimeter (ct/mm3) | Stone per Fluid ounce (st/fl oz) |
|---|---|
| 0.1 ct/mm3 | 0.0931406747 st/fl oz |
| 1 ct/mm3 | 0.9314067469 st/fl oz |
| 10 ct/mm3 | 9.314067469 st/fl oz |
| 100 ct/mm3 | 93.14067469 st/fl oz |
| 1,000 ct/mm3 | 931.4067469 st/fl oz |
| 10,000 ct/mm3 | 9,314.067469 st/fl oz |
Reverse conversion: Stone per Fluid ounce to Carat per Cubic Millimeter
0.9314067469 st/fl oz × 1.073644789 = 1 ct/mm3
0.9314067469 stones per fluid ounce = 1 carats per cubic millimeter.
carats per cubic millimeter = stones per fluid ounce × 1.07364478876
For a page dedicated to this direction, see Stone per Fluid ounce to Carat per Cubic Millimeter.
Understanding the Carat per Cubic Millimeter (ct/mm3)
Mass per volume density.
Understanding the Stone per Fluid ounce (st/fl oz)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per fluid ounce are in 1 carat per cubic millimeter?
1 carat per cubic millimeter equals 0.9314067469 stones per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert carat per cubic millimeter to stone per fluid ounce?
Multiply the carat per cubic millimeter value by 0.9314067469. The converter above does this instantly to whatever precision you set.
How do I convert stone per fluid ounce back to carat per cubic millimeter?
Use the reverse factor: 1 stone per fluid ounce equals 1.073644789 carats per cubic millimeter. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per cubic millimeter?
Carat per Cubic Millimeter (ct/mm3) is a unit of density.
What is a stone per fluid ounce?
Stone per Fluid ounce (st/fl oz) is a unit of density.
Is the carat per cubic millimeter to stone per fluid ounce conversion exact?
Yes. Both carat per cubic millimeter and stone per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 0.9314067469 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.