Mass per volume density.
Kilograms per Fluid ounce to Pound per Cubic inches Converter — kg/fl oz to lb/in3
Convert Kilogram per Fluid ounce (kg/fl oz) to Pound per Cubic inch (lb/in3) using the exact conversion factor (1 kilogram per fluid ounce = 1.221609072 pound per cubic inch). See the formula, worked examples, conversion table, and common uses.
Kilograms per Fluid ounce 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 33814.0227 / 27679.90471.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Fluid ounce to Pound per Cubic inches
Kilogram per Fluid ounce 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 = kilograms per fluid ounce × 1.22160907185
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per fluid ounce equals 33814.0227018 base units, and 1 pound per cubic inch equals 27679.9047102 base units, so dividing one by the other gives the direct kilogram per fluid ounce-to-pound per cubic inch factor of 1.22160907185.
Simple example
1 kg/fl oz × 1.221609072 = 1.221609072 lb/in3
1 kilogram per fluid ounce = 1.221609072 pound per cubic inches.
Real-world example
1,000 kg/fl oz × 1.221609072 = 1,221.609072 lb/in3
1,000 kilograms per fluid ounce = 1,221.609072 pound per cubic inches.
Conversion table
| Kilogram per Fluid ounce (kg/fl oz) | Pound per Cubic inch (lb/in3) |
|---|---|
| 0.1 kg/fl oz | 0.1221609072 lb/in3 |
| 1 kg/fl oz | 1.221609072 lb/in3 |
| 10 kg/fl oz | 12.21609072 lb/in3 |
| 100 kg/fl oz | 122.1609072 lb/in3 |
| 1,000 kg/fl oz | 1,221.609072 lb/in3 |
| 10,000 kg/fl oz | 12,216.09072 lb/in3 |
Reverse conversion: Pound per Cubic inch to Kilogram per Fluid ounce
1.221609072 lb/in3 × 0.8185924802 = 1 kg/fl oz
1.221609072 pound per cubic inches = 1 kilograms per fluid ounce.
kilograms per fluid ounce = pound per cubic inches × 0.818592480234
For a page dedicated to this direction, see Pound per Cubic inch to Kilogram per Fluid ounce.
Understanding the Kilogram per Fluid ounce (kg/fl oz)
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 kilogram per fluid ounce?
1 kilogram per fluid ounce equals 1.221609072 pound per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per fluid ounce to pound per cubic inch?
Multiply the kilogram per fluid ounce value by 1.221609072. The converter above does this instantly to whatever precision you set.
How do I convert pound per cubic inch back to kilogram per fluid ounce?
Use the reverse factor: 1 pound per cubic inch equals 0.8185924802 kilograms per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram per fluid ounce?
Kilogram per Fluid ounce (kg/fl oz) 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 kilogram per fluid ounce to pound per cubic inch conversion exact?
Yes. Both kilogram per fluid ounce and pound per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 1.221609072 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.