Mass per volume density.
Pound per Cubic inches to Carats per Liter Converter — lb/in3 to ct/L
Convert Pound per Cubic inch (lb/in3) to Carat per Liter (ct/L) using the exact conversion factor (1 pound per cubic inch = 138,399.5236 carat per liter). See the formula, worked examples, conversion table, and common uses.
Pound per Cubic inches to Carats per Liter 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 / 0.2.
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 Carats per Liter
Pound per Cubic inch and Carat per Liter 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
carats per liter = pound per cubic inches × 138399.523551
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 carat per liter equals 0.2 base units, so dividing one by the other gives the direct pound per cubic inch-to-carat per liter factor of 138399.523551.
Simple example
1 lb/in3 × 138399.5236 = 138,399.5236 ct/L
1 pound per cubic inch = 138,399.5236 carats per liter.
Real-world example
1,000 lb/in3 × 138399.5236 = 138,399,523.6 ct/L
1,000 pound per cubic inches = 138,399,523.6 carats per liter.
Conversion table
| Pound per Cubic inch (lb/in3) | Carat per Liter (ct/L) |
|---|---|
| 0.1 lb/in3 | 13,839.95236 ct/L |
| 1 lb/in3 | 138,399.5236 ct/L |
| 10 lb/in3 | 1,383,995.236 ct/L |
| 100 lb/in3 | 13,839,952.36 ct/L |
| 1,000 lb/in3 | 138,399,523.6 ct/L |
| 10,000 lb/in3 | 1,383,995,236 ct/L |
Reverse conversion: Carat per Liter to Pound per Cubic inch
1 ct/L × 0.0000072254584 = 0.0000072255 lb/in3
1 carat per liter = 0.0000072255 pound per cubic inches.
pound per cubic inches = carats per liter × 0.00000722545840002
For a page dedicated to this direction, see Carat per Liter 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 Carat per Liter (ct/L)
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 carats per liter are in 1 pound per cubic inch?
1 pound per cubic inch equals 138,399.5236 carats per liter, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic inch to carat per liter?
Multiply the pound per cubic inch value by 138399.5236. The converter above does this instantly to whatever precision you set.
How do I convert carat per liter back to pound per cubic inch?
Use the reverse factor: 1 carat per liter equals 0.0000072255 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 carat per liter?
Carat per Liter (ct/L) is a unit of density.
Is the pound per cubic inch to carat per liter conversion exact?
Yes. Both pound per cubic inch and carat per liter are defined by fixed standards rather than physical artifacts, so the factor of 138399.5236 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.