Mass per volume density.
Stones per Pint to Megagrams per Gallon Converter — st/pt to Mg/gal
Convert Stone per Pint (st/pt) to Megagram per Gallon (Mg/gal) using the exact conversion factor (1 stone per pint = 0.0508023454 megagram per gallon). See the formula, worked examples, and conversion table.
Stones per Pint to Megagrams per Gallon 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 / 264172.0524.
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 Megagrams per Gallon
Stone per Pint and Megagram per Gallon 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 gallon = stones per pint × 0.05080234544
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 megagram per gallon equals 264172.052358 base units, so dividing one by the other gives the direct stone per pint-to-megagram per gallon factor of 0.05080234544.
Simple example
1 st/pt × 0.05080234544 = 0.0508023454 Mg/gal
1 stone per pint = 0.0508023454 megagrams per gallon.
Real-world example
1,000 st/pt × 0.05080234544 = 50.80234544 Mg/gal
1,000 stones per pint = 50.80234544 megagrams per gallon.
Conversion table
| Stone per Pint (st/pt) | Megagram per Gallon (Mg/gal) |
|---|---|
| 0.1 st/pt | 0.0050802345 Mg/gal |
| 1 st/pt | 0.0508023454 Mg/gal |
| 10 st/pt | 0.5080234544 Mg/gal |
| 100 st/pt | 5.080234544 Mg/gal |
| 1,000 st/pt | 50.80234544 Mg/gal |
| 10,000 st/pt | 508.0234544 Mg/gal |
Reverse conversion: Megagram per Gallon to Stone per Pint
0.0508023454 Mg/gal × 19.68413055 = 0.9999999992 st/pt
0.0508023454 megagrams per gallon = 0.9999999992 stones per pint.
stones per pint = megagrams per gallon × 19.6841305522
For a page dedicated to this direction, see Megagram per Gallon to Stone per Pint.
Understanding the Stone per Pint (st/pt)
Mass per volume density.
Understanding the Megagram per Gallon (Mg/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many megagrams per gallon are in 1 stone per pint?
1 stone per pint equals 0.0508023454 megagrams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert stone per pint to megagram per gallon?
Multiply the stone per pint value by 0.05080234544. The converter above does this instantly to whatever precision you set.
How do I convert megagram per gallon back to stone per pint?
Use the reverse factor: 1 megagram per gallon equals 19.68413055 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 megagram per gallon?
Megagram per Gallon (Mg/gal) is a unit of density.
Is the stone per pint to megagram per gallon conversion exact?
Yes. Both stone per pint and megagram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.05080234544 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.