Mass per volume density.
Slug per Cubic inches to Pound per Cubic inches Converter — slug/in3 to lb/in3
Convert Slug per Cubic inch (slug/in3) to Pound per Cubic inch (lb/in3) using the exact conversion factor (1 slug per cubic inch = 32.17404856 pound per cubic inch). See the formula, worked examples, conversion table, and common uses.
Slug per Cubic inches to Pound per Cubic inches 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 890574.5982 / 27679.90471.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Slug per Cubic inches to Pound per Cubic inches
Slug per Cubic inch and Pound per Cubic inch 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
pound per cubic inches = slug per cubic inches × 32.1740485564
This factor comes from each unit's defined relationship to the category's base unit: 1 slug per cubic inch equals 890574.598183 base units, and 1 pound per cubic inch equals 27679.9047102 base units, so dividing one by the other gives the direct slug per cubic inch-to-pound per cubic inch factor of 32.1740485564.
Simple example
1 slug/in3 × 32.17404856 = 32.17404856 lb/in3
1 slug per cubic inch = 32.17404856 pound per cubic inches.
Real-world example
1,000 slug/in3 × 32.17404856 = 32,174.04856 lb/in3
1,000 slug per cubic inches = 32,174.04856 pound per cubic inches.
Conversion table
| Slug per Cubic inch (slug/in3) | Pound per Cubic inch (lb/in3) |
|---|---|
| 0.1 slug/in3 | 3.217404856 lb/in3 |
| 1 slug/in3 | 32.17404856 lb/in3 |
| 10 slug/in3 | 321.7404856 lb/in3 |
| 100 slug/in3 | 3,217.404856 lb/in3 |
| 1,000 slug/in3 | 32,174.04856 lb/in3 |
| 10,000 slug/in3 | 321,740.4856 lb/in3 |
Reverse conversion: Pound per Cubic inch to Slug per Cubic inch
32.17404856 lb/in3 × 0.03108095017 = 1 slug/in3
32.17404856 pound per cubic inches = 1 slug per cubic inches.
slug per cubic inches = pound per cubic inches × 0.0310809501716
For a page dedicated to this direction, see Pound per Cubic inch to Slug per Cubic inch.
Understanding the Slug per Cubic inch (slug/in3)
Mass per volume density.
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
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 pound per cubic inches are in 1 slug per cubic inch?
1 slug per cubic inch equals 32.17404856 pound per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert slug per cubic inch to pound per cubic inch?
Multiply the slug per cubic inch value by 32.17404856. The converter above does this instantly to whatever precision you set.
How do I convert pound per cubic inch back to slug per cubic inch?
Use the reverse factor: 1 pound per cubic inch equals 0.0310809502 slug per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a slug per cubic inch?
Slug per Cubic inch (slug/in3) is a unit of density.
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.
Is the slug per cubic inch to pound per cubic inch conversion exact?
Yes. Both slug per cubic inch and pound per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 32.17404856 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.