Mass per volume density.
Stones per Quart to Megagrams per Quart Converter — st/qt to Mg/qt
Convert Stone per Quart (st/qt) to Megagram per Quart (Mg/qt) using the exact conversion factor (1 stone per quart = 0.0063502932 megagram per quart). See the formula, worked examples, and conversion table.
Stones per Quart to Megagrams 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 6710.27993 / 1.05668821e+6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Quart to Megagrams per Quart
Stone per Quart and Megagram 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
megagrams per quart = stones per quart × 0.00635029318
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per quart equals 6710.27992975 base units, and 1 megagram per quart equals 1056688.20943 base units, so dividing one by the other gives the direct stone per quart-to-megagram per quart factor of 0.00635029318.
Simple example
1 st/qt × 0.00635029318 = 0.0063502932 Mg/qt
1 stone per quart = 0.0063502932 megagrams per quart.
Real-world example
1,000 st/qt × 0.00635029318 = 6.35029318 Mg/qt
1,000 stones per quart = 6.35029318 megagrams per quart.
Conversion table
| Stone per Quart (st/qt) | Megagram per Quart (Mg/qt) |
|---|---|
| 0.1 st/qt | 0.0006350293 Mg/qt |
| 1 st/qt | 0.0063502932 Mg/qt |
| 10 st/qt | 0.0635029318 Mg/qt |
| 100 st/qt | 0.635029318 Mg/qt |
| 1,000 st/qt | 6.35029318 Mg/qt |
| 10,000 st/qt | 63.5029318 Mg/qt |
Reverse conversion: Megagram per Quart to Stone per Quart
0.0063502932 Mg/qt × 157.4730444 = 1.000000003 st/qt
0.0063502932 megagrams per quart = 1.000000003 stones per quart.
stones per quart = megagrams per quart × 157.473044418
For a page dedicated to this direction, see Megagram per Quart to Stone per Quart.
Understanding the Stone per Quart (st/qt)
Mass per volume density.
Understanding the Megagram per Quart (Mg/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many megagrams per quart are in 1 stone per quart?
1 stone per quart equals 0.0063502932 megagrams per quart, using the exact defined conversion factor rather than an estimate.
How do I convert stone per quart to megagram per quart?
Multiply the stone per quart value by 0.00635029318. The converter above does this instantly to whatever precision you set.
How do I convert megagram per quart back to stone per quart?
Use the reverse factor: 1 megagram per quart equals 157.4730444 stones per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per quart?
Stone per Quart (st/qt) is a unit of density.
What is a megagram per quart?
Megagram per Quart (Mg/qt) is a unit of density.
Is the stone per quart to megagram per quart conversion exact?
Yes. Both stone per quart and megagram per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.00635029318 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.