Mass per volume density.
Slugs per Imperial gallon to Long tons per Cubic Millimeter Converter — slug/imp gal to long ton/mm3
Convert Slug per Imperial gallon (slug/imp gal) to Long ton per Cubic Millimeter (long ton/mm3) using the exact conversion factor (1 slug per imperial gallon = 3.159509e-9 long ton per cubic millimeter). See the formula, worked examples, and conversion table.
Slugs per Imperial gallon to Long tons 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 3210.209859 / 1.01604691e+12.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Slugs per Imperial gallon to Long tons per Cubic Millimeter
Slug per Imperial gallon and Long ton 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
long tons per cubic millimeter = slugs per imperial gallon × 3.159509e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 slug per imperial gallon equals 3210.20985885 base units, and 1 long ton per cubic millimeter equals 1.016047e+12 base units, so dividing one by the other gives the direct slug per imperial gallon-to-long ton per cubic millimeter factor of 3.159509e-9.
Simple example
1 slug/imp gal × 3.159509e-9 = 3.159509e-9 long ton/mm3
1 slug per imperial gallon = 3.159509e-9 long tons per cubic millimeter.
Real-world example
1,000 slug/imp gal × 3.159509e-9 = 0.0000031595 long ton/mm3
1,000 slugs per imperial gallon = 0.0000031595 long tons per cubic millimeter.
Conversion table
| Slug per Imperial gallon (slug/imp gal) | Long ton per Cubic Millimeter (long ton/mm3) |
|---|---|
| 0.1 slug/imp gal | 3.159509e-10 long ton/mm3 |
| 1 slug/imp gal | 3.159509e-9 long ton/mm3 |
| 10 slug/imp gal | 3.159509e-8 long ton/mm3 |
| 100 slug/imp gal | 3.159509e-7 long ton/mm3 |
| 1,000 slug/imp gal | 0.0000031595 long ton/mm3 |
| 10,000 slug/imp gal | 0.0000315951 long ton/mm3 |
Reverse conversion: Long ton per Cubic Millimeter to Slug per Imperial gallon
3.159509e-9 long ton/mm3 × 316504824.8 = 0.9999998424 slug/imp gal
3.159509e-9 long tons per cubic millimeter = 0.9999998424 slugs per imperial gallon.
slugs per imperial gallon = long tons per cubic millimeter × 316504824.755
For a page dedicated to this direction, see Long ton per Cubic Millimeter to Slug per Imperial gallon.
Understanding the Slug per Imperial gallon (slug/imp gal)
Mass per volume density.
Understanding the Long ton per Cubic Millimeter (long ton/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many long tons per cubic millimeter are in 1 slug per imperial gallon?
1 slug per imperial gallon equals 3.159509e-9 long tons per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert slug per imperial gallon to long ton per cubic millimeter?
Multiply the slug per imperial gallon value by 3.159509e-9. The converter above does this instantly to whatever precision you set.
How do I convert long ton per cubic millimeter back to slug per imperial gallon?
Use the reverse factor: 1 long ton per cubic millimeter equals 316,504,824.8 slugs per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a slug per imperial gallon?
Slug per Imperial gallon (slug/imp gal) is a unit of density.
What is a long ton per cubic millimeter?
Long ton per Cubic Millimeter (long ton/mm3) is a unit of density.
Is the slug per imperial gallon to long ton per cubic millimeter conversion exact?
Yes. Both slug per imperial gallon and long ton per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 3.159509e-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.