Mass per volume density.
Slugs per Quart to Grains per Gallon Converter — slug/qt to gr/gal
Convert Slug per Quart (slug/qt) to Grain per Gallon (gr/gal) using the exact conversion factor (1 slug per quart = 900,873.3596 grain per gallon). See the formula, worked examples, and conversion table.
Slugs per Quart to Grains 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 15421.20516 / 0.01711806105.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Slugs per Quart to Grains per Gallon
Slug per Quart and Grain 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
grains per gallon = slugs per quart × 900873.35958
This factor comes from each unit's defined relationship to the category's base unit: 1 slug per quart equals 15421.2051633 base units, and 1 grain per gallon equals 0.0171180610453 base units, so dividing one by the other gives the direct slug per quart-to-grain per gallon factor of 900873.35958.
Simple example
1 slug/qt × 900873.3596 = 900,873.3596 gr/gal
1 slug per quart = 900,873.3596 grains per gallon.
Real-world example
1,000 slug/qt × 900873.3596 = 900,873,359.6 gr/gal
1,000 slugs per quart = 900,873,359.6 grains per gallon.
Conversion table
| Slug per Quart (slug/qt) | Grain per Gallon (gr/gal) |
|---|---|
| 0.1 slug/qt | 90,087.33596 gr/gal |
| 1 slug/qt | 900,873.3596 gr/gal |
| 10 slug/qt | 9,008,733.596 gr/gal |
| 100 slug/qt | 90,087,335.96 gr/gal |
| 1,000 slug/qt | 900,873,359.6 gr/gal |
| 10,000 slug/qt | 9,008,733,596 gr/gal |
Reverse conversion: Grain per Gallon to Slug per Quart
1 gr/gal × 0.000001110033935 = 0.00000111 slug/qt
1 grain per gallon = 0.00000111 slugs per quart.
slugs per quart = grains per gallon × 0.0000011100339347
For a page dedicated to this direction, see Grain per Gallon to Slug per Quart.
Understanding the Slug per Quart (slug/qt)
Mass per volume density.
Understanding the Grain per Gallon (gr/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per gallon are in 1 slug per quart?
1 slug per quart equals 900,873.3596 grains per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert slug per quart to grain per gallon?
Multiply the slug per quart value by 900873.3596. The converter above does this instantly to whatever precision you set.
How do I convert grain per gallon back to slug per quart?
Use the reverse factor: 1 grain per gallon equals 0.00000111 slugs per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a slug per quart?
Slug per Quart (slug/qt) is a unit of density.
What is a grain per gallon?
Grain per Gallon (gr/gal) is a unit of density.
Is the slug per quart to grain per gallon conversion exact?
Yes. Both slug per quart and grain per gallon are defined by fixed standards rather than physical artifacts, so the factor of 900873.3596 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.