Mass per volume density.
Pounds per Imperial gallon to Slugs per Cubic Millimeter Converter — lb/imp gal to slug/mm3
Convert Pound per Imperial gallon (lb/imp gal) to Slug per Cubic Millimeter (slug/mm3) using the exact conversion factor (1 pound per imperial gallon = 6.836853e-9 slug per cubic millimeter). See the formula, worked examples, and conversion table.
Pounds per Imperial gallon to Slugs per Cubic Millimeter 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 99.77637266 / 1.45939029e+10.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Imperial gallon to Slugs per Cubic Millimeter
Pound per Imperial gallon and Slug per Cubic Millimeter 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 millimeter = pounds per imperial gallon × 6.836853e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per imperial gallon equals 99.7763726631 base units, and 1 slug per cubic millimeter equals 14593902937.2 base units, so dividing one by the other gives the direct pound per imperial gallon-to-slug per cubic millimeter factor of 6.836853e-9.
Simple example
1 lb/imp gal × 6.836853e-9 = 6.836853e-9 slug/mm3
1 pound per imperial gallon = 6.836853e-9 slugs per cubic millimeter.
Real-world example
1,000 lb/imp gal × 6.836853e-9 = 0.0000068369 slug/mm3
1,000 pounds per imperial gallon = 0.0000068369 slugs per cubic millimeter.
Conversion table
| Pound per Imperial gallon (lb/imp gal) | Slug per Cubic Millimeter (slug/mm3) |
|---|---|
| 0.1 lb/imp gal | 6.836853e-10 slug/mm3 |
| 1 lb/imp gal | 6.836853e-9 slug/mm3 |
| 10 lb/imp gal | 6.836853e-8 slug/mm3 |
| 100 lb/imp gal | 6.836853e-7 slug/mm3 |
| 1,000 lb/imp gal | 0.0000068369 slug/mm3 |
| 10,000 lb/imp gal | 0.0000683685 slug/mm3 |
Reverse conversion: Slug per Cubic Millimeter to Pound per Imperial gallon
6.836853e-9 slug/mm3 × 146266120.4 = 0.9999999641 lb/imp gal
6.836853e-9 slugs per cubic millimeter = 0.9999999641 pounds per imperial gallon.
pounds per imperial gallon = slugs per cubic millimeter × 146266120.402
For a page dedicated to this direction, see Slug per Cubic Millimeter to Pound per Imperial gallon.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Understanding the Slug per Cubic Millimeter (slug/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many slugs per cubic millimeter are in 1 pound per imperial gallon?
1 pound per imperial gallon equals 6.836853e-9 slugs per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert pound per imperial gallon to slug per cubic millimeter?
Multiply the pound per imperial gallon value by 6.836853e-9. The converter above does this instantly to whatever precision you set.
How do I convert slug per cubic millimeter back to pound per imperial gallon?
Use the reverse factor: 1 slug per cubic millimeter equals 146,266,120.4 pounds per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per imperial gallon?
Pound per Imperial gallon (lb/imp gal) is a unit of density.
What is a slug per cubic millimeter?
Slug per Cubic Millimeter (slug/mm3) is a unit of density.
Is the pound per imperial gallon to slug per cubic millimeter conversion exact?
Yes. Both pound per imperial gallon and slug per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 6.836853e-9 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.