Mass per volume density.
Grains per Gallon to Slugs per Gallon Converter — gr/gal to slug/gal
Convert Grain per Gallon (gr/gal) to Slug per Gallon (slug/gal) using the exact conversion factor (1 grain per gallon = 0.0000044401 slug per gallon). See the formula, worked examples, and conversion table.
Grains per Gallon to Slugs 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 0.01711806105 / 3855.301291.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Gallon to Slugs per Gallon
Grain per Gallon and Slug 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
slugs per gallon = grains per gallon × 0.0000044401357388
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per gallon equals 0.0171180610453 base units, and 1 slug per gallon equals 3855.30129084 base units, so dividing one by the other gives the direct grain per gallon-to-slug per gallon factor of 0.0000044401357388.
Simple example
1 gr/gal × 0.000004440135739 = 0.0000044401 slug/gal
1 grain per gallon = 0.0000044401 slugs per gallon.
Real-world example
1,000 gr/gal × 0.000004440135739 = 0.0044401357 slug/gal
1,000 grains per gallon = 0.0044401357 slugs per gallon.
Conversion table
| Grain per Gallon (gr/gal) | Slug per Gallon (slug/gal) |
|---|---|
| 0.1 gr/gal | 4.440136e-7 slug/gal |
| 1 gr/gal | 0.0000044401 slug/gal |
| 10 gr/gal | 0.0000444014 slug/gal |
| 100 gr/gal | 0.0004440136 slug/gal |
| 1,000 gr/gal | 0.0044401357 slug/gal |
| 10,000 gr/gal | 0.0444013574 slug/gal |
Reverse conversion: Slug per Gallon to Grain per Gallon
0.0000044401 slug/gal × 225218.3399 = 0.999991951 gr/gal
0.0000044401 slugs per gallon = 0.999991951 grains per gallon.
grains per gallon = slugs per gallon × 225218.339895
For a page dedicated to this direction, see Slug per Gallon to Grain per Gallon.
Understanding the Grain per Gallon (gr/gal)
Mass per volume density.
Understanding the Slug per Gallon (slug/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many slugs per gallon are in 1 grain per gallon?
1 grain per gallon equals 0.0000044401 slugs per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per gallon to slug per gallon?
Multiply the grain per gallon value by 0.000004440135739. The converter above does this instantly to whatever precision you set.
How do I convert slug per gallon back to grain per gallon?
Use the reverse factor: 1 slug per gallon equals 225,218.3399 grains per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per gallon?
Grain per Gallon (gr/gal) is a unit of density.
What is a slug per gallon?
Slug per Gallon (slug/gal) is a unit of density.
Is the grain per gallon to slug per gallon conversion exact?
Yes. Both grain per gallon and slug per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.000004440135739 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.