Mass per volume density.
Stones per Pint to Grains per Quart Converter — st/pt to gr/qt
Convert Stone per Pint (st/pt) to Grain per Quart (gr/qt) using the exact conversion factor (1 stone per pint = 196,000 grain per quart). See the formula, worked examples, and conversion table.
Stones per Pint to Grains per Quart 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 13420.55986 / 0.06847224418.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Pint to Grains per Quart
Stone per Pint and Grain per Quart 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 quart = stones per pint × 196000
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per pint equals 13420.5598595 base units, and 1 grain per quart equals 0.0684722441811 base units, so dividing one by the other gives the direct stone per pint-to-grain per quart factor of 196000.
Simple example
1 st/pt × 196000 = 196,000 gr/qt
1 stone per pint = 196,000 grains per quart.
Real-world example
1,000 st/pt × 196000 = 196,000,000 gr/qt
1,000 stones per pint = 196,000,000 grains per quart.
Conversion table
| Stone per Pint (st/pt) | Grain per Quart (gr/qt) |
|---|---|
| 0.1 st/pt | 19,600 gr/qt |
| 1 st/pt | 196,000 gr/qt |
| 10 st/pt | 1,960,000 gr/qt |
| 100 st/pt | 19,600,000 gr/qt |
| 1,000 st/pt | 196,000,000 gr/qt |
| 10,000 st/pt | 1,960,000,000 gr/qt |
Reverse conversion: Grain per Quart to Stone per Pint
1 gr/qt × 0.000005102040816 = 0.000005102 st/pt
1 grain per quart = 0.000005102 stones per pint.
stones per pint = grains per quart × 0.00000510204081633
For a page dedicated to this direction, see Grain per Quart to Stone per Pint.
Understanding the Stone per Pint (st/pt)
Mass per volume density.
Understanding the Grain per Quart (gr/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per quart are in 1 stone per pint?
1 stone per pint equals 196,000 grains per quart, using the exact defined conversion factor rather than an estimate.
How do I convert stone per pint to grain per quart?
Multiply the stone per pint value by 196000. The converter above does this instantly to whatever precision you set.
How do I convert grain per quart back to stone per pint?
Use the reverse factor: 1 grain per quart equals 0.000005102 stones per pint. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per pint?
Stone per Pint (st/pt) is a unit of density.
What is a grain per quart?
Grain per Quart (gr/qt) is a unit of density.
Is the stone per pint to grain per quart conversion exact?
Yes. Both stone per pint and grain per quart are defined by fixed standards rather than physical artifacts, so the factor of 196000 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.