Mass per volume density.
Pounds per Cubic yard to Metric tons per Cubic Millimeter Converter — lb/yd3 to t/mm3
Convert Pound per Cubic yard (lb/yd3) to Metric ton per Cubic Millimeter (t/mm3) using the exact conversion factor (1 pound per cubic yard = 5.932764e-13 metric ton per cubic millimeter). See the formula, worked examples, and conversion table.
Pounds per Cubic yard to Metric 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 0.5932764213 / 1e+12.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Cubic yard to Metric tons per Cubic Millimeter
Pound per Cubic yard and Metric 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
metric tons per cubic millimeter = pounds per cubic yard × 5.932764e-13
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per cubic yard equals 0.593276421258 base units, and 1 metric ton per cubic millimeter equals 1000000000000 base units, so dividing one by the other gives the direct pound per cubic yard-to-metric ton per cubic millimeter factor of 5.932764e-13.
Simple example
1 lb/yd3 × 5.932764e-13 = 5.932764e-13 t/mm3
1 pound per cubic yard = 5.932764e-13 metric tons per cubic millimeter.
Real-world example
1,000 lb/yd3 × 5.932764e-13 = 5.932764e-10 t/mm3
1,000 pounds per cubic yard = 5.932764e-10 metric tons per cubic millimeter.
Conversion table
| Pound per Cubic yard (lb/yd3) | Metric ton per Cubic Millimeter (t/mm3) |
|---|---|
| 0.1 lb/yd3 | 5.932764e-14 t/mm3 |
| 1 lb/yd3 | 5.932764e-13 t/mm3 |
| 10 lb/yd3 | 5.932764e-12 t/mm3 |
| 100 lb/yd3 | 5.932764e-11 t/mm3 |
| 1,000 lb/yd3 | 5.932764e-10 t/mm3 |
| 10,000 lb/yd3 | 5.932764e-9 t/mm3 |
Reverse conversion: Metric ton per Cubic Millimeter to Pound per Cubic yard
5.932764e-13 t/mm3 × 1.685555e+12 = 0.9999999642 lb/yd3
5.932764e-13 metric tons per cubic millimeter = 0.9999999642 pounds per cubic yard.
pounds per cubic yard = metric tons per cubic millimeter × 1.685555e+12
For a page dedicated to this direction, see Metric ton per Cubic Millimeter to Pound per Cubic yard.
Understanding the Pound per Cubic yard (lb/yd3)
Mass per volume density.
Understanding the Metric ton per Cubic Millimeter (t/mm3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many metric tons per cubic millimeter are in 1 pound per cubic yard?
1 pound per cubic yard equals 5.932764e-13 metric tons per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic yard to metric ton per cubic millimeter?
Multiply the pound per cubic yard value by 5.932764e-13. The converter above does this instantly to whatever precision you set.
How do I convert metric ton per cubic millimeter back to pound per cubic yard?
Use the reverse factor: 1 metric ton per cubic millimeter equals 1.685555e+12 pounds per cubic yard. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per cubic yard?
Pound per Cubic yard (lb/yd3) is a unit of density.
What is a metric ton per cubic millimeter?
Metric ton per Cubic Millimeter (t/mm3) is a unit of density.
Is the pound per cubic yard to metric ton per cubic millimeter conversion exact?
Yes. Both pound per cubic yard and metric ton per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 5.932764e-13 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.