Mass per volume density.
Pound per Cubic inches to Kilograms per Liter Converter — lb/in3 to kg/L
Convert Pound per Cubic inch (lb/in3) to Kilogram per Liter (kg/L) using the exact conversion factor (1 pound per cubic inch = 27.67990471 kilogram per liter). See the formula, worked examples, conversion table, unit comparison, and common uses.
Pound per Cubic inches to Kilograms 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 / 1000.
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 Kilograms per Liter
Pound per Cubic inch and Kilogram 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 typically associated with united States, while Kilogram per Liter is typically associated with widely used internationally for fuel, oil, and food-industry density specifications.
Formula
kilograms per liter = pound per cubic inches × 27.6799047102
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 kilogram per liter equals 1000 base units, so dividing one by the other gives the direct pound per cubic inch-to-kilogram per liter factor of 27.6799047102.
Simple example
1 lb/in3 × 27.67990471 = 27.67990471 kg/L
1 pound per cubic inch = 27.67990471 kilograms per liter.
Real-world example
1,000 lb/in3 × 27.67990471 = 27,679.90471 kg/L
1,000 pound per cubic inches = 27,679.90471 kilograms per liter.
Conversion table
| Pound per Cubic inch (lb/in3) | Kilogram per Liter (kg/L) |
|---|---|
| 0.1 lb/in3 | 2.767990471 kg/L |
| 1 lb/in3 | 27.67990471 kg/L |
| 10 lb/in3 | 276.7990471 kg/L |
| 100 lb/in3 | 2,767.990471 kg/L |
| 1,000 lb/in3 | 27,679.90471 kg/L |
| 10,000 lb/in3 | 276,799.0471 kg/L |
Reverse conversion: Kilogram per Liter to Pound per Cubic inch
27.67990471 kg/L × 0.036127292 = 1 lb/in3
27.67990471 kilograms per liter = 1 pound per cubic inches.
pound per cubic inches = kilograms per liter × 0.0361272920001
For a page dedicated to this direction, see Kilogram per Liter to Pound per Cubic inch.
Pound per Cubic inch vs. Kilogram per Liter
| Aspect | Pound per Cubic inch | Kilogram per Liter |
|---|---|---|
| Family | US customary density unit | metric derived density unit |
| Typical use | 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 | Fuel and petroleum density specifications (diesel is roughly 0.85 kg/L, gasoline roughly 0.74 kg/L) |
| Where it's used | United States | Widely used internationally for fuel, oil, and food-industry density specifications |
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 Kilogram per Liter
Kilogram per Liter (kg/L) measures density. Numerically identical to grams per milliliter and to specific gravity for water-based substances, since water has a density of very nearly 1 kg/L. It is classified as a metric derived density unit.
Where it's used: Widely used internationally for fuel, oil, and food-industry density specifications
Uses of the Kilogram per Liter today
- Fuel and petroleum density specifications (diesel is roughly 0.85 kg/L, gasoline roughly 0.74 kg/L)
- Food and beverage industry quality control
- Quick density comparisons against water, since water is almost exactly 1 kg/L
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.
Kilogram per Liter — sources
- BIPM SI Brochure — Litre and kilogram as accepted SI and SI-derived units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per liter are in 1 pound per cubic inch?
1 pound per cubic inch equals 27.67990471 kilograms per liter, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic inch to kilogram per liter?
Multiply the pound per cubic inch value by 27.67990471. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per liter back to pound per cubic inch?
Use the reverse factor: 1 kilogram per liter equals 0.036127292 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 kilogram per liter?
Kilogram per Liter (kg/L) measures density. Numerically identical to grams per milliliter and to specific gravity for water-based substances, since water has a density of very nearly 1 kg/L. It is classified as a metric derived density unit.
Is the pound per cubic inch to kilogram per liter conversion exact?
Yes. Both pound per cubic inch and kilogram per liter are defined by fixed standards rather than physical artifacts, so the factor of 27.67990471 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.