Mass per volume density.
Pound per Cubic inches to US hundredweights per Cubic Millimeter Converter — lb/in3 to cwt/mm3
Convert Pound per Cubic inch (lb/in3) to US hundredweight per Cubic Millimeter (cwt/mm3) using the exact conversion factor (1 pound per cubic inch = 6.102374e-7 us hundredweight per cubic millimeter). See the formula, worked examples, conversion table, and common uses.
Pound per Cubic inches to US hundredweights 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 27679.90471 / 4.5359237e+10.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pound per Cubic inches to US hundredweights per Cubic Millimeter
Pound per Cubic inch and US hundredweight 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. Pound per Cubic inch is most often used for used in machining and materials engineering, particularly for describing the density of metals, where a smaller volume unit than the cubic foot gives a more convenient figure.
Formula
us hundredweights per cubic millimeter = pound per cubic inches × 6.102374e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per cubic inch equals 27679.9047102 base units, and 1 us hundredweight per cubic millimeter equals 45359237000 base units, so dividing one by the other gives the direct pound per cubic inch-to-us hundredweight per cubic millimeter factor of 6.102374e-7.
Simple example
1 lb/in3 × 6.102374e-7 = 6.102374e-7 cwt/mm3
1 pound per cubic inch = 6.102374e-7 us hundredweights per cubic millimeter.
Real-world example
1,000 lb/in3 × 6.102374e-7 = 0.0006102374 cwt/mm3
1,000 pound per cubic inches = 0.0006102374 us hundredweights per cubic millimeter.
Conversion table
| Pound per Cubic inch (lb/in3) | US hundredweight per Cubic Millimeter (cwt/mm3) |
|---|---|
| 0.1 lb/in3 | 6.102374e-8 cwt/mm3 |
| 1 lb/in3 | 6.102374e-7 cwt/mm3 |
| 10 lb/in3 | 0.0000061024 cwt/mm3 |
| 100 lb/in3 | 0.0000610237 cwt/mm3 |
| 1,000 lb/in3 | 0.0006102374 cwt/mm3 |
| 10,000 lb/in3 | 0.0061023744 cwt/mm3 |
Reverse conversion: US hundredweight per Cubic Millimeter to Pound per Cubic inch
6.102374e-7 cwt/mm3 × 1638706.4 = 0.9999999329 lb/in3
6.102374e-7 us hundredweights per cubic millimeter = 0.9999999329 pound per cubic inches.
pound per cubic inches = us hundredweights per cubic millimeter × 1638706.4
For a page dedicated to this direction, see US hundredweight per Cubic Millimeter to Pound per Cubic inch.
Understanding the Pound per Cubic inch
Pound per Cubic inch (lb/in3) measures density. A US customary density unit suited to describing dense materials in a small volume. It is classified as a US customary density unit.
Where it's used: United States
Uses of the Pound per Cubic inch today
- Used in machining and materials engineering, particularly for describing the density of metals, where a smaller volume unit than the cubic foot gives a more convenient figure
Understanding the US hundredweight per Cubic Millimeter (cwt/mm3)
Mass per volume density.
Pound per Cubic inch — sources
- US materials-engineering reference tables — Pounds per cubic inch is a commonly tabulated density unit for metals in US machining and materials references.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many us hundredweights per cubic millimeter are in 1 pound per cubic inch?
1 pound per cubic inch equals 6.102374e-7 us hundredweights per cubic millimeter, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic inch to us hundredweight per cubic millimeter?
Multiply the pound per cubic inch value by 6.102374e-7. The converter above does this instantly to whatever precision you set.
How do I convert us hundredweight per cubic millimeter back to pound per cubic inch?
Use the reverse factor: 1 us hundredweight per cubic millimeter equals 1,638,706.4 pound per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per cubic inch?
Pound per Cubic inch (lb/in3) measures density. A US customary density unit suited to describing dense materials in a small volume. It is classified as a US customary density unit.
What is a us hundredweight per cubic millimeter?
US hundredweight per Cubic Millimeter (cwt/mm3) is a unit of density.
Is the pound per cubic inch to us hundredweight per cubic millimeter conversion exact?
Yes. Both pound per cubic inch and us hundredweight per cubic millimeter are defined by fixed standards rather than physical artifacts, so the factor of 6.102374e-7 used above is exact to as many digits as you choose to display.
Where is the pound per cubic inch still used today?
United States
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.
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