Mass per volume density.
Stones per Gallon to Slugs per Cubic foot Converter — st/gal to slug/ft3
Convert Stone per Gallon (st/gal) to Slug per Cubic foot (slug/ft3) using the exact conversion factor (1 stone per gallon = 3.255023145 slug per cubic foot). See the formula, worked examples, and conversion table.
Stones per Gallon to Slugs per Cubic foot 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 1677.569982 / 515.3788184.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Gallon to Slugs per Cubic foot
Stone per Gallon and Slug per Cubic foot 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
slugs per cubic foot = stones per gallon × 3.25502314524
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per gallon equals 1677.56998244 base units, and 1 slug per cubic foot equals 515.378818393 base units, so dividing one by the other gives the direct stone per gallon-to-slug per cubic foot factor of 3.25502314524.
Simple example
1 st/gal × 3.255023145 = 3.255023145 slug/ft3
1 stone per gallon = 3.255023145 slugs per cubic foot.
Real-world example
1,000 st/gal × 3.255023145 = 3,255.023145 slug/ft3
1,000 stones per gallon = 3,255.023145 slugs per cubic foot.
Conversion table
| Stone per Gallon (st/gal) | Slug per Cubic foot (slug/ft3) |
|---|---|
| 0.1 st/gal | 0.3255023145 slug/ft3 |
| 1 st/gal | 3.255023145 slug/ft3 |
| 10 st/gal | 32.55023145 slug/ft3 |
| 100 st/gal | 325.5023145 slug/ft3 |
| 1,000 st/gal | 3,255.023145 slug/ft3 |
| 10,000 st/gal | 32,550.23145 slug/ft3 |
Reverse conversion: Slug per Cubic foot to Stone per Gallon
3.255023145 slug/ft3 × 0.3072174775 = 0.9999999999 st/gal
3.255023145 slugs per cubic foot = 0.9999999999 stones per gallon.
stones per gallon = slugs per cubic foot × 0.307217477535
For a page dedicated to this direction, see Slug per Cubic foot to Stone per Gallon.
Understanding the Stone per Gallon (st/gal)
Mass per volume density.
Understanding the Slug per Cubic foot (slug/ft3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many slugs per cubic foot are in 1 stone per gallon?
1 stone per gallon equals 3.255023145 slugs per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert stone per gallon to slug per cubic foot?
Multiply the stone per gallon value by 3.255023145. The converter above does this instantly to whatever precision you set.
How do I convert slug per cubic foot back to stone per gallon?
Use the reverse factor: 1 slug per cubic foot equals 0.3072174775 stones per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per gallon?
Stone per Gallon (st/gal) is a unit of density.
What is a slug per cubic foot?
Slug per Cubic foot (slug/ft3) is a unit of density.
Is the stone per gallon to slug per cubic foot conversion exact?
Yes. Both stone per gallon and slug per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 3.255023145 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.