Mass per volume density.
Long tons per Gallon to Short tons per Cubic Millimeter Converter — long ton/gal to ton/mm3
Convert Long ton per Gallon (long ton/gal) to Short ton per Cubic Millimeter (ton/mm3) using the exact conversion factor (1 long ton per gallon = 2.958727e-7 short ton per cubic millimeter). See the formula, worked examples, and conversion table.
Long tons per Gallon to Short 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 268411.1972 / 9.0718474e+11.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Long tons per Gallon to Short tons per Cubic Millimeter
Long ton per Gallon and Short 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
short tons per cubic millimeter = long tons per gallon × 2.958727e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 long ton per gallon equals 268411.19719 base units, and 1 short ton per cubic millimeter equals 907184740000 base units, so dividing one by the other gives the direct long ton per gallon-to-short ton per cubic millimeter factor of 2.958727e-7.
Simple example
1 long ton/gal × 2.958727e-7 = 2.958727e-7 ton/mm3
1 long ton per gallon = 2.958727e-7 short tons per cubic millimeter.
Real-world example
1,000 long ton/gal × 2.958727e-7 = 0.0002958727 ton/mm3
1,000 long tons per gallon = 0.0002958727 short tons per cubic millimeter.
Conversion table
| Long ton per Gallon (long ton/gal) | Short ton per Cubic Millimeter (ton/mm3) |
|---|---|
| 0.1 long ton/gal | 2.958727e-8 ton/mm3 |
| 1 long ton/gal | 2.958727e-7 ton/mm3 |
| 10 long ton/gal | 0.0000029587 ton/mm3 |
| 100 long ton/gal | 0.0000295873 ton/mm3 |
| 1,000 long ton/gal | 0.0002958727 ton/mm3 |
| 10,000 long ton/gal | 0.002958727 ton/mm3 |
Reverse conversion: Short ton per Cubic Millimeter to Long ton per Gallon
2.958727e-7 ton/mm3 × 3379831.95 = 1.000000005 long ton/gal
2.958727e-7 short tons per cubic millimeter = 1.000000005 long tons per gallon.
long tons per gallon = short tons per cubic millimeter × 3379831.95
For a page dedicated to this direction, see Short ton per Cubic Millimeter to Long ton per Gallon.
Understanding the Long ton per Gallon (long ton/gal)
Mass per volume density.
Understanding the Short ton per Cubic Millimeter (ton/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many short tons per cubic millimeter are in 1 long ton per gallon?
1 long ton per gallon equals 2.958727e-7 short tons per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert long ton per gallon to short ton per cubic millimeter?
Multiply the long ton per gallon value by 2.958727e-7. The converter above does this instantly to whatever precision you set.
How do I convert short ton per cubic millimeter back to long ton per gallon?
Use the reverse factor: 1 short ton per cubic millimeter equals 3,379,831.95 long tons per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a long ton per gallon?
Long ton per Gallon (long ton/gal) is a unit of density.
What is a short ton per cubic millimeter?
Short ton per Cubic Millimeter (ton/mm3) is a unit of density.
Is the long ton per gallon to short ton per cubic millimeter conversion exact?
Yes. Both long ton per gallon and short ton per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 2.958727e-7 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.