Mass per volume density.
Megagrams per Imperial gallon to Stones per Gallon Converter — Mg/imp gal to st/gal
Convert Megagram per Imperial gallon (Mg/imp gal) to Stone per Gallon (st/gal) using the exact conversion factor (1 megagram per imperial gallon = 131.1237389 stone per gallon). See the formula, worked examples, and conversion table.
Megagrams per Imperial gallon to Stones 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 219969.2483 / 1677.569982.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Megagrams per Imperial gallon to Stones per Gallon
Megagram per Imperial gallon and Stone 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
stones per gallon = megagrams per imperial gallon × 131.123738862
This factor comes from each unit's defined relationship to the category's base unit: 1 megagram per imperial gallon equals 219969.248299 base units, and 1 stone per gallon equals 1677.56998244 base units, so dividing one by the other gives the direct megagram per imperial gallon-to-stone per gallon factor of 131.123738862.
Simple example
1 Mg/imp gal × 131.1237389 = 131.1237389 st/gal
1 megagram per imperial gallon = 131.1237389 stones per gallon.
Real-world example
1,000 Mg/imp gal × 131.1237389 = 131,123.7389 st/gal
1,000 megagrams per imperial gallon = 131,123.7389 stones per gallon.
Conversion table
| Megagram per Imperial gallon (Mg/imp gal) | Stone per Gallon (st/gal) |
|---|---|
| 0.1 Mg/imp gal | 13.11237389 st/gal |
| 1 Mg/imp gal | 131.1237389 st/gal |
| 10 Mg/imp gal | 1,311.237389 st/gal |
| 100 Mg/imp gal | 13,112.37389 st/gal |
| 1,000 Mg/imp gal | 131,123.7389 st/gal |
| 10,000 Mg/imp gal | 1,311,237.389 st/gal |
Reverse conversion: Stone per Gallon to Megagram per Imperial gallon
131.1237389 st/gal × 0.007626384121 = 1 Mg/imp gal
131.1237389 stones per gallon = 1 megagrams per imperial gallon.
megagrams per imperial gallon = stones per gallon × 0.00762638412145
For a page dedicated to this direction, see Stone per Gallon to Megagram per Imperial gallon.
Understanding the Megagram per Imperial gallon (Mg/imp gal)
Mass per volume density.
Understanding the Stone per Gallon (st/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per gallon are in 1 megagram per imperial gallon?
1 megagram per imperial gallon equals 131.1237389 stones per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert megagram per imperial gallon to stone per gallon?
Multiply the megagram per imperial gallon value by 131.1237389. The converter above does this instantly to whatever precision you set.
How do I convert stone per gallon back to megagram per imperial gallon?
Use the reverse factor: 1 stone per gallon equals 0.0076263841 megagrams per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a megagram per imperial gallon?
Megagram per Imperial gallon (Mg/imp gal) is a unit of density.
What is a stone per gallon?
Stone per Gallon (st/gal) is a unit of density.
Is the megagram per imperial gallon to stone per gallon conversion exact?
Yes. Both megagram per imperial gallon and stone per gallon are defined by fixed standards rather than physical artifacts, so the factor of 131.1237389 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.