Mass per volume density.
Pounds per Fluid ounce to Kilogram per Cubic inches Converter — lb/fl oz to kg/in3
Convert Pound per Fluid ounce (lb/fl oz) to Kilogram per Cubic inch (kg/in3) using the exact conversion factor (1 pound per fluid ounce = 0.2513412267 kilogram per cubic inch). See the formula, worked examples, and conversion table.
Pounds per Fluid ounce to Kilogram 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 15337.7827 / 61023.74409.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Fluid ounce to Kilogram per Cubic inches
Pound per Fluid ounce and Kilogram 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
kilogram per cubic inches = pounds per fluid ounce × 0.251341226667
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per fluid ounce equals 15337.7826966 base units, and 1 kilogram per cubic inch equals 61023.7440947 base units, so dividing one by the other gives the direct pound per fluid ounce-to-kilogram per cubic inch factor of 0.251341226667.
Simple example
1 lb/fl oz × 0.2513412267 = 0.2513412267 kg/in3
1 pound per fluid ounce = 0.2513412267 kilogram per cubic inches.
Real-world example
1,000 lb/fl oz × 0.2513412267 = 251.3412267 kg/in3
1,000 pounds per fluid ounce = 251.3412267 kilogram per cubic inches.
Conversion table
| Pound per Fluid ounce (lb/fl oz) | Kilogram per Cubic inch (kg/in3) |
|---|---|
| 0.1 lb/fl oz | 0.0251341227 kg/in3 |
| 1 lb/fl oz | 0.2513412267 kg/in3 |
| 10 lb/fl oz | 2.513412267 kg/in3 |
| 100 lb/fl oz | 25.13412267 kg/in3 |
| 1,000 lb/fl oz | 251.3412267 kg/in3 |
| 10,000 lb/fl oz | 2,513.412267 kg/in3 |
Reverse conversion: Kilogram per Cubic inch to Pound per Fluid ounce
0.2513412267 kg/in3 × 3.978654888 = 1 lb/fl oz
0.2513412267 kilogram per cubic inches = 1 pounds per fluid ounce.
pounds per fluid ounce = kilogram per cubic inches × 3.97865488787
For a page dedicated to this direction, see Kilogram per Cubic inch to Pound per Fluid ounce.
Understanding the Pound per Fluid ounce (lb/fl oz)
Mass per volume density.
Understanding the Kilogram per Cubic inch (kg/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilogram per cubic inches are in 1 pound per fluid ounce?
1 pound per fluid ounce equals 0.2513412267 kilogram per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert pound per fluid ounce to kilogram per cubic inch?
Multiply the pound per fluid ounce value by 0.2513412267. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic inch back to pound per fluid ounce?
Use the reverse factor: 1 kilogram per cubic inch equals 3.978654888 pounds per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per fluid ounce?
Pound per Fluid ounce (lb/fl oz) is a unit of density.
What is a kilogram per cubic inch?
Kilogram per Cubic inch (kg/in3) is a unit of density.
Is the pound per fluid ounce to kilogram per cubic inch conversion exact?
Yes. Both pound per fluid ounce and kilogram per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 0.2513412267 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.