Mass per volume density.
Grains per Fluid ounce to Slugs per Gallon Converter — gr/fl oz to slug/gal
Convert Grain per Fluid ounce (gr/fl oz) to Slug per Gallon (slug/gal) using the exact conversion factor (1 grain per fluid ounce = 0.0005683374 slug per gallon). See the formula, worked examples, and conversion table.
Grains per Fluid ounce 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 2.191111814 / 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 Fluid ounce to Slugs per Gallon
Grain per Fluid ounce 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 fluid ounce × 0.000568337374566
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per fluid ounce equals 2.19111181379 base units, and 1 slug per gallon equals 3855.30129084 base units, so dividing one by the other gives the direct grain per fluid ounce-to-slug per gallon factor of 0.000568337374566.
Simple example
1 gr/fl oz × 0.0005683373746 = 0.0005683374 slug/gal
1 grain per fluid ounce = 0.0005683374 slugs per gallon.
Real-world example
1,000 gr/fl oz × 0.0005683373746 = 0.5683373746 slug/gal
1,000 grains per fluid ounce = 0.5683373746 slugs per gallon.
Conversion table
| Grain per Fluid ounce (gr/fl oz) | Slug per Gallon (slug/gal) |
|---|---|
| 0.1 gr/fl oz | 0.0000568337 slug/gal |
| 1 gr/fl oz | 0.0005683374 slug/gal |
| 10 gr/fl oz | 0.0056833737 slug/gal |
| 100 gr/fl oz | 0.0568337375 slug/gal |
| 1,000 gr/fl oz | 0.5683373746 slug/gal |
| 10,000 gr/fl oz | 5.683373746 slug/gal |
Reverse conversion: Slug per Gallon to Grain per Fluid ounce
0.0005683374 slug/gal × 1759.51828 = 1.000000045 gr/fl oz
0.0005683374 slugs per gallon = 1.000000045 grains per fluid ounce.
grains per fluid ounce = slugs per gallon × 1759.51828043
For a page dedicated to this direction, see Slug per Gallon to Grain per Fluid ounce.
Understanding the Grain per Fluid ounce (gr/fl oz)
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 fluid ounce?
1 grain per fluid ounce equals 0.0005683374 slugs per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per fluid ounce to slug per gallon?
Multiply the grain per fluid ounce value by 0.0005683373746. The converter above does this instantly to whatever precision you set.
How do I convert slug per gallon back to grain per fluid ounce?
Use the reverse factor: 1 slug per gallon equals 1,759.51828 grains per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per fluid ounce?
Grain per Fluid ounce (gr/fl oz) 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 fluid ounce to slug per gallon conversion exact?
Yes. Both grain per fluid ounce and slug per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.0005683373746 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.