Mass per volume density.
Grains per Fluid ounce to Stones per Fluid ounce Converter — gr/fl oz to st/fl oz
Convert Grain per Fluid ounce (gr/fl oz) to Stone per Fluid ounce (st/fl oz) using the exact conversion factor (1 grain per fluid ounce = 0.0000102041 stone per fluid ounce). See the formula, worked examples, and conversion table.
Grains per Fluid ounce 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 2.191111814 / 214728.9578.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Fluid ounce to Stones per Fluid ounce
Grain per Fluid ounce 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 = grains per fluid ounce × 0.0000102040816327
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per fluid ounce equals 2.19111181379 base units, and 1 stone per fluid ounce equals 214728.957752 base units, so dividing one by the other gives the direct grain per fluid ounce-to-stone per fluid ounce factor of 0.0000102040816327.
Simple example
1 gr/fl oz × 0.00001020408163 = 0.0000102041 st/fl oz
1 grain per fluid ounce = 0.0000102041 stones per fluid ounce.
Real-world example
1,000 gr/fl oz × 0.00001020408163 = 0.0102040816 st/fl oz
1,000 grains per fluid ounce = 0.0102040816 stones per fluid ounce.
Conversion table
| Grain per Fluid ounce (gr/fl oz) | Stone per Fluid ounce (st/fl oz) |
|---|---|
| 0.1 gr/fl oz | 0.0000010204 st/fl oz |
| 1 gr/fl oz | 0.0000102041 st/fl oz |
| 10 gr/fl oz | 0.0001020408 st/fl oz |
| 100 gr/fl oz | 0.0010204082 st/fl oz |
| 1,000 gr/fl oz | 0.0102040816 st/fl oz |
| 10,000 gr/fl oz | 0.1020408163 st/fl oz |
Reverse conversion: Stone per Fluid ounce to Grain per Fluid ounce
0.0000102041 st/fl oz × 98000 = 1.0000018 gr/fl oz
0.0000102041 stones per fluid ounce = 1.0000018 grains per fluid ounce.
grains per fluid ounce = stones per fluid ounce × 98000
For a page dedicated to this direction, see Stone per Fluid ounce to Grain per Fluid ounce.
Understanding the Grain per Fluid ounce (gr/fl oz)
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 grain per fluid ounce?
1 grain per fluid ounce equals 0.0000102041 stones per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert grain per fluid ounce to stone per fluid ounce?
Multiply the grain per fluid ounce value by 0.00001020408163. The converter above does this instantly to whatever precision you set.
How do I convert stone per fluid ounce back to grain per fluid ounce?
Use the reverse factor: 1 stone per fluid ounce equals 98,000 grains per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per fluid ounce?
Grain per Fluid ounce (gr/fl oz) 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 grain per fluid ounce to stone per fluid ounce conversion exact?
Yes. Both grain per fluid ounce and stone per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 0.00001020408163 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.