Mass per volume density.
Long tons per Cup to Troy ounces per Cubic Millimeter Converter — long ton/cup to oz t/mm3
Convert Long ton per Cup (long ton/cup) to Troy ounce per Cubic Millimeter (oz t/mm3) using the exact conversion factor (1 long ton per cup = 0.138073926 troy ounce per cubic millimeter). See the formula, worked examples, and conversion table.
Long tons per Cup to Troy ounces 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 4.29457916e+6 / 3.11034768e+7.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Long tons per Cup to Troy ounces per Cubic Millimeter
Long ton per Cup and Troy ounce 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
troy ounces per cubic millimeter = long tons per cup × 0.138073926033
This factor comes from each unit's defined relationship to the category's base unit: 1 long ton per cup equals 4294579.15504 base units, and 1 troy ounce per cubic millimeter equals 31103476.8 base units, so dividing one by the other gives the direct long ton per cup-to-troy ounce per cubic millimeter factor of 0.138073926033.
Simple example
1 long ton/cup × 0.138073926 = 0.138073926 oz t/mm3
1 long ton per cup = 0.138073926 troy ounces per cubic millimeter.
Real-world example
1,000 long ton/cup × 0.138073926 = 138.073926 oz t/mm3
1,000 long tons per cup = 138.073926 troy ounces per cubic millimeter.
Conversion table
| Long ton per Cup (long ton/cup) | Troy ounce per Cubic Millimeter (oz t/mm3) |
|---|---|
| 0.1 long ton/cup | 0.0138073926 oz t/mm3 |
| 1 long ton/cup | 0.138073926 oz t/mm3 |
| 10 long ton/cup | 1.38073926 oz t/mm3 |
| 100 long ton/cup | 13.8073926 oz t/mm3 |
| 1,000 long ton/cup | 138.073926 oz t/mm3 |
| 10,000 long ton/cup | 1,380.73926 oz t/mm3 |
Reverse conversion: Troy ounce per Cubic Millimeter to Long ton per Cup
0.138073926 oz t/mm3 × 7.242497036 = 0.9999999998 long ton/cup
0.138073926 troy ounces per cubic millimeter = 0.9999999998 long tons per cup.
long tons per cup = troy ounces per cubic millimeter × 7.24249703571
For a page dedicated to this direction, see Troy ounce per Cubic Millimeter to Long ton per Cup.
Understanding the Long ton per Cup (long ton/cup)
Mass per volume density.
Understanding the Troy ounce per Cubic Millimeter (oz t/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many troy ounces per cubic millimeter are in 1 long ton per cup?
1 long ton per cup equals 0.138073926 troy ounces per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert long ton per cup to troy ounce per cubic millimeter?
Multiply the long ton per cup value by 0.138073926. The converter above does this instantly to whatever precision you set.
How do I convert troy ounce per cubic millimeter back to long ton per cup?
Use the reverse factor: 1 troy ounce per cubic millimeter equals 7.242497036 long tons per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a long ton per cup?
Long ton per Cup (long ton/cup) is a unit of density.
What is a troy ounce per cubic millimeter?
Troy ounce per Cubic Millimeter (oz t/mm3) is a unit of density.
Is the long ton per cup to troy ounce per cubic millimeter conversion exact?
Yes. Both long ton per cup and troy ounce per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.138073926 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.