Mass per volume density.
Hectograms per Gallon to Stones per Gallon Converter — hg/gal to st/gal
Convert Hectogram per Gallon (hg/gal) to Stone per Gallon (st/gal) using the exact conversion factor (1 hectogram per gallon = 0.0157473044 stone per gallon). See the formula, worked examples, and conversion table.
Hectograms per 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 26.41720524 / 1677.569982.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Hectograms per Gallon to Stones per Gallon
Hectogram per 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 = hectograms per gallon × 0.0157473044418
This factor comes from each unit's defined relationship to the category's base unit: 1 hectogram per gallon equals 26.4172052358 base units, and 1 stone per gallon equals 1677.56998244 base units, so dividing one by the other gives the direct hectogram per gallon-to-stone per gallon factor of 0.0157473044418.
Simple example
1 hg/gal × 0.01574730444 = 0.0157473044 st/gal
1 hectogram per gallon = 0.0157473044 stones per gallon.
Real-world example
1,000 hg/gal × 0.01574730444 = 15.74730444 st/gal
1,000 hectograms per gallon = 15.74730444 stones per gallon.
Conversion table
| Hectogram per Gallon (hg/gal) | Stone per Gallon (st/gal) |
|---|---|
| 0.1 hg/gal | 0.0015747304 st/gal |
| 1 hg/gal | 0.0157473044 st/gal |
| 10 hg/gal | 0.1574730444 st/gal |
| 100 hg/gal | 1.574730444 st/gal |
| 1,000 hg/gal | 15.74730444 st/gal |
| 10,000 hg/gal | 157.4730444 st/gal |
Reverse conversion: Stone per Gallon to Hectogram per Gallon
0.0157473044 st/gal × 63.5029318 = 0.9999999973 hg/gal
0.0157473044 stones per gallon = 0.9999999973 hectograms per gallon.
hectograms per gallon = stones per gallon × 63.5029318
For a page dedicated to this direction, see Stone per Gallon to Hectogram per Gallon.
Understanding the Hectogram per Gallon (hg/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 hectogram per gallon?
1 hectogram per gallon equals 0.0157473044 stones per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert hectogram per gallon to stone per gallon?
Multiply the hectogram per gallon value by 0.01574730444. The converter above does this instantly to whatever precision you set.
How do I convert stone per gallon back to hectogram per gallon?
Use the reverse factor: 1 stone per gallon equals 63.5029318 hectograms per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a hectogram per gallon?
Hectogram per Gallon (hg/gal) is a unit of density.
What is a stone per gallon?
Stone per Gallon (st/gal) is a unit of density.
Is the hectogram per gallon to stone per gallon conversion exact?
Yes. Both hectogram per gallon and stone per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.01574730444 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.