Mass per volume density.
Kilograms per Cubic Millimeter to Long tons per Cubic yard Converter — kg/mm3 to long ton/yd3
Convert Kilogram per Cubic Millimeter (kg/mm3) to Long ton per Cubic yard (long ton/yd3) using the exact conversion factor (1 kilogram per cubic millimeter = 752,479.8819 long ton per cubic yard). See the formula, worked examples, and conversion table.
Kilograms per Cubic Millimeter to Long tons per Cubic yard 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 1e+9 / 1328.939184.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Cubic Millimeter to Long tons per Cubic yard
Kilogram per Cubic Millimeter and Long ton per Cubic yard 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 yard = kilograms per cubic millimeter × 752479.881945
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per cubic millimeter equals 1000000000 base units, and 1 long ton per cubic yard equals 1328.93918362 base units, so dividing one by the other gives the direct kilogram per cubic millimeter-to-long ton per cubic yard factor of 752479.881945.
Simple example
1 kg/mm3 × 752479.8819 = 752,479.8819 long ton/yd3
1 kilogram per cubic millimeter = 752,479.8819 long tons per cubic yard.
Real-world example
1,000 kg/mm3 × 752479.8819 = 752,479,881.9 long ton/yd3
1,000 kilograms per cubic millimeter = 752,479,881.9 long tons per cubic yard.
Conversion table
| Kilogram per Cubic Millimeter (kg/mm3) | Long ton per Cubic yard (long ton/yd3) |
|---|---|
| 0.1 kg/mm3 | 75,247.98819 long ton/yd3 |
| 1 kg/mm3 | 752,479.8819 long ton/yd3 |
| 10 kg/mm3 | 7,524,798.819 long ton/yd3 |
| 100 kg/mm3 | 75,247,988.19 long ton/yd3 |
| 1,000 kg/mm3 | 752,479,881.9 long ton/yd3 |
| 10,000 kg/mm3 | 7,524,798,819 long ton/yd3 |
Reverse conversion: Long ton per Cubic yard to Kilogram per Cubic Millimeter
1 long ton/yd3 × 0.000001328939184 = 0.0000013289 kg/mm3
1 long ton per cubic yard = 0.0000013289 kilograms per cubic millimeter.
kilograms per cubic millimeter = long tons per cubic yard × 0.00000132893918362
For a page dedicated to this direction, see Long ton per Cubic yard to Kilogram per Cubic Millimeter.
Understanding the Kilogram per Cubic Millimeter (kg/mm3)
Mass per volume density.
Understanding the Long ton per Cubic yard (long ton/yd3)
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 yard are in 1 kilogram per cubic millimeter?
1 kilogram per cubic millimeter equals 752,479.8819 long tons per cubic yard, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per cubic millimeter to long ton per cubic yard?
Multiply the kilogram per cubic millimeter value by 752479.8819. The converter above does this instantly to whatever precision you set.
How do I convert long ton per cubic yard back to kilogram per cubic millimeter?
Use the reverse factor: 1 long ton per cubic yard equals 0.0000013289 kilograms per cubic millimeter. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram per cubic millimeter?
Kilogram per Cubic Millimeter (kg/mm3) is a unit of density.
What is a long ton per cubic yard?
Long ton per Cubic yard (long ton/yd3) is a unit of density.
Is the kilogram per cubic millimeter to long ton per cubic yard conversion exact?
Yes. Both kilogram per cubic millimeter and long ton per cubic yard are defined by fixed standards rather than physical artifacts, so the factor of 752479.8819 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.