Mass per volume density.
Pound per Cubic inches to US hundredweights per Cubic foot Converter — lb/in3 to cwt/ft3
Convert Pound per Cubic inch (lb/in3) to US hundredweight per Cubic foot (cwt/ft3) using the exact conversion factor (1 pound per cubic inch = 17.28 us hundredweight per cubic foot). See the formula, worked examples, conversion table, and common uses.
Pound per Cubic inches to US hundredweights per Cubic foot 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 / 1601.846337.
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 foot
Pound per Cubic inch and US hundredweight per Cubic foot 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 foot = pound per cubic inches × 17.28
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 foot equals 1601.8463374 base units, so dividing one by the other gives the direct pound per cubic inch-to-us hundredweight per cubic foot factor of 17.28.
Simple example
1 lb/in3 × 17.28 = 17.28 cwt/ft3
1 pound per cubic inch = 17.28 us hundredweights per cubic foot.
Real-world example
1,000 lb/in3 × 17.28 = 17,280 cwt/ft3
1,000 pound per cubic inches = 17,280 us hundredweights per cubic foot.
Conversion table
| Pound per Cubic inch (lb/in3) | US hundredweight per Cubic foot (cwt/ft3) |
|---|---|
| 0.1 lb/in3 | 1.728 cwt/ft3 |
| 1 lb/in3 | 17.28 cwt/ft3 |
| 10 lb/in3 | 172.8 cwt/ft3 |
| 100 lb/in3 | 1,728 cwt/ft3 |
| 1,000 lb/in3 | 17,280 cwt/ft3 |
| 10,000 lb/in3 | 172,800 cwt/ft3 |
Reverse conversion: US hundredweight per Cubic foot to Pound per Cubic inch
17.28 cwt/ft3 × 0.05787037037 = 1 lb/in3
17.28 us hundredweights per cubic foot = 1 pound per cubic inches.
pound per cubic inches = us hundredweights per cubic foot × 0.0578703703704
For a page dedicated to this direction, see US hundredweight per Cubic foot 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 foot (cwt/ft3)
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 foot are in 1 pound per cubic inch?
1 pound per cubic inch equals 17.28 us hundredweights per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic inch to us hundredweight per cubic foot?
Multiply the pound per cubic inch value by 17.28. The converter above does this instantly to whatever precision you set.
How do I convert us hundredweight per cubic foot back to pound per cubic inch?
Use the reverse factor: 1 us hundredweight per cubic foot equals 0.0578703704 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 foot?
US hundredweight per Cubic foot (cwt/ft3) is a unit of density.
Is the pound per cubic inch to us hundredweight per cubic foot conversion exact?
Yes. Both pound per cubic inch and us hundredweight per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 17.28 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.