Mass per volume density.
Pounds per Cubic Meter to Kilogram per Cubic inches Converter — lb/m3 to kg/in3
Convert Pound per Cubic Meter (lb/m3) to Kilogram per Cubic inch (kg/in3) using the exact conversion factor (1 pound per cubic meter = 0.000007433 kilogram per cubic inch). See the formula, worked examples, and conversion table.
Pounds per Cubic Meter 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 0.45359237 / 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 Cubic Meter to Kilogram per Cubic inches
Pound per Cubic Meter 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 cubic meter × 0.0000074330471971
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per cubic meter equals 0.45359237 base units, and 1 kilogram per cubic inch equals 61023.7440947 base units, so dividing one by the other gives the direct pound per cubic meter-to-kilogram per cubic inch factor of 0.0000074330471971.
Simple example
1 lb/m3 × 0.000007433047197 = 0.000007433 kg/in3
1 pound per cubic meter = 0.000007433 kilogram per cubic inches.
Real-world example
1,000 lb/m3 × 0.000007433047197 = 0.0074330472 kg/in3
1,000 pounds per cubic meter = 0.0074330472 kilogram per cubic inches.
Conversion table
| Pound per Cubic Meter (lb/m3) | Kilogram per Cubic inch (kg/in3) |
|---|---|
| 0.1 lb/m3 | 7.433047e-7 kg/in3 |
| 1 lb/m3 | 0.000007433 kg/in3 |
| 10 lb/m3 | 0.0000743305 kg/in3 |
| 100 lb/m3 | 0.0007433047 kg/in3 |
| 1,000 lb/m3 | 0.0074330472 kg/in3 |
| 10,000 lb/m3 | 0.074330472 kg/in3 |
Reverse conversion: Kilogram per Cubic inch to Pound per Cubic Meter
0.000007433 kg/in3 × 134534.3267 = 0.9999936504 lb/m3
0.000007433 kilogram per cubic inches = 0.9999936504 pounds per cubic meter.
pounds per cubic meter = kilogram per cubic inches × 134534.326701
For a page dedicated to this direction, see Kilogram per Cubic inch to Pound per Cubic Meter.
Understanding the Pound per Cubic Meter (lb/m3)
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 cubic meter?
1 pound per cubic meter equals 0.000007433 kilogram per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic meter to kilogram per cubic inch?
Multiply the pound per cubic meter value by 0.000007433047197. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cubic inch back to pound per cubic meter?
Use the reverse factor: 1 kilogram per cubic inch equals 134,534.3267 pounds per cubic meter. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per cubic meter?
Pound per Cubic Meter (lb/m3) 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 cubic meter to kilogram per cubic inch conversion exact?
Yes. Both pound per cubic meter and kilogram per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 0.000007433047197 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.