Mass per volume density.
Milligrams per Gallon to Stones per Liter Converter — mg/gal to st/L
Convert Milligram per Gallon (mg/gal) to Stone per Liter (st/L) using the exact conversion factor (1 milligram per gallon = 4.159998e-8 stone per liter). See the formula, worked examples, and conversion table.
Milligrams per Gallon to Stones per Liter 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 0.0002641720524 / 6350.29318.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Gallon to Stones per Liter
Milligram per Gallon and Stone per Liter 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 liter = milligrams per gallon × 4.159998e-8
This factor comes from each unit's defined relationship to the category's base unit: 1 milligram per gallon equals 0.000264172052358 base units, and 1 stone per liter equals 6350.29318 base units, so dividing one by the other gives the direct milligram per gallon-to-stone per liter factor of 4.159998e-8.
Simple example
1 mg/gal × 4.159998e-8 = 4.159998e-8 st/L
1 milligram per gallon = 4.159998e-8 stones per liter.
Real-world example
1,000 mg/gal × 4.159998e-8 = 0.0000416 st/L
1,000 milligrams per gallon = 0.0000416 stones per liter.
Conversion table
| Milligram per Gallon (mg/gal) | Stone per Liter (st/L) |
|---|---|
| 0.1 mg/gal | 4.159998e-9 st/L |
| 1 mg/gal | 4.159998e-8 st/L |
| 10 mg/gal | 4.159998e-7 st/L |
| 100 mg/gal | 0.00000416 st/L |
| 1,000 mg/gal | 0.0000416 st/L |
| 10,000 mg/gal | 0.0004159998 st/L |
Reverse conversion: Stone per Liter to Milligram per Gallon
4.159998e-8 st/L × 24038474.64 = 1.000000064 mg/gal
4.159998e-8 stones per liter = 1.000000064 milligrams per gallon.
milligrams per gallon = stones per liter × 24038474.6354
For a page dedicated to this direction, see Stone per Liter to Milligram per Gallon.
Understanding the Milligram per Gallon (mg/gal)
Mass per volume density.
Understanding the Stone per Liter (st/L)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per liter are in 1 milligram per gallon?
1 milligram per gallon equals 4.159998e-8 stones per liter, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per gallon to stone per liter?
Multiply the milligram per gallon value by 4.159998e-8. The converter above does this instantly to whatever precision you set.
How do I convert stone per liter back to milligram per gallon?
Use the reverse factor: 1 stone per liter equals 24,038,474.64 milligrams per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a milligram per gallon?
Milligram per Gallon (mg/gal) is a unit of density.
What is a stone per liter?
Stone per Liter (st/L) is a unit of density.
Is the milligram per gallon to stone per liter conversion exact?
Yes. Both milligram per gallon and stone per liter are defined by fixed standards rather than physical artifacts, so the factor of 4.159998e-8 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.