Mass per volume density.
Pound per Cubic inches to Drams per Cubic foot Converter — lb/in3 to dr/ft3
Convert Pound per Cubic inch (lb/in3) to Dram per Cubic foot (dr/ft3) using the exact conversion factor (1 pound per cubic inch = 442,368 dram per cubic foot). See the formula, worked examples, conversion table, and common uses.
Pound per Cubic inches to Drams 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 / 0.06257212255.
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 Drams per Cubic foot
Pound per Cubic inch and Dram 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
drams per cubic foot = pound per cubic inches × 442368
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 dram per cubic foot equals 0.0625721225545 base units, so dividing one by the other gives the direct pound per cubic inch-to-dram per cubic foot factor of 442368.
Simple example
1 lb/in3 × 442368 = 442,368 dr/ft3
1 pound per cubic inch = 442,368 drams per cubic foot.
Real-world example
1,000 lb/in3 × 442368 = 442,368,000 dr/ft3
1,000 pound per cubic inches = 442,368,000 drams per cubic foot.
Conversion table
| Pound per Cubic inch (lb/in3) | Dram per Cubic foot (dr/ft3) |
|---|---|
| 0.1 lb/in3 | 44,236.8 dr/ft3 |
| 1 lb/in3 | 442,368 dr/ft3 |
| 10 lb/in3 | 4,423,680 dr/ft3 |
| 100 lb/in3 | 44,236,800 dr/ft3 |
| 1,000 lb/in3 | 442,368,000 dr/ft3 |
| 10,000 lb/in3 | 4,423,680,000 dr/ft3 |
Reverse conversion: Dram per Cubic foot to Pound per Cubic inch
1 dr/ft3 × 0.000002260561343 = 0.0000022606 lb/in3
1 dram per cubic foot = 0.0000022606 pound per cubic inches.
pound per cubic inches = drams per cubic foot × 0.00000226056134259
For a page dedicated to this direction, see Dram 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 Dram per Cubic foot (dr/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 drams per cubic foot are in 1 pound per cubic inch?
1 pound per cubic inch equals 442,368 drams per cubic foot, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic inch to dram per cubic foot?
Multiply the pound per cubic inch value by 442368. The converter above does this instantly to whatever precision you set.
How do I convert dram per cubic foot back to pound per cubic inch?
Use the reverse factor: 1 dram per cubic foot equals 0.0000022606 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 dram per cubic foot?
Dram per Cubic foot (dr/ft3) is a unit of density.
Is the pound per cubic inch to dram per cubic foot conversion exact?
Yes. Both pound per cubic inch and dram per cubic foot are defined by fixed standards rather than physical artifacts, so the factor of 442368 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.