Mass per volume density.
Pounds per Cubic Meter to Dram per Cubic inches Converter — lb/m3 to dr/in3
Convert Pound per Cubic Meter (lb/m3) to Dram per Cubic inch (dr/in3) using the exact conversion factor (1 pound per cubic meter = 0.0041950884 dram per cubic inch). See the formula, worked examples, and conversion table.
Pounds per Cubic Meter to Dram 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 / 108.1246278.
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 Dram per Cubic inches
Pound per Cubic Meter and Dram 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
dram per cubic inches = pounds per cubic meter × 0.004195088384
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 dram per cubic inch equals 108.124627774 base units, so dividing one by the other gives the direct pound per cubic meter-to-dram per cubic inch factor of 0.004195088384.
Simple example
1 lb/m3 × 0.004195088384 = 0.0041950884 dr/in3
1 pound per cubic meter = 0.0041950884 dram per cubic inches.
Real-world example
1,000 lb/m3 × 0.004195088384 = 4.195088384 dr/in3
1,000 pounds per cubic meter = 4.195088384 dram per cubic inches.
Conversion table
| Pound per Cubic Meter (lb/m3) | Dram per Cubic inch (dr/in3) |
|---|---|
| 0.1 lb/m3 | 0.0004195088 dr/in3 |
| 1 lb/m3 | 0.0041950884 dr/in3 |
| 10 lb/m3 | 0.0419508838 dr/in3 |
| 100 lb/m3 | 0.4195088384 dr/in3 |
| 1,000 lb/m3 | 4.195088384 dr/in3 |
| 10,000 lb/m3 | 41.95088384 dr/in3 |
Reverse conversion: Dram per Cubic inch to Pound per Cubic Meter
0.0041950884 dr/in3 × 238.3740004 = 1.000000004 lb/m3
0.0041950884 dram per cubic inches = 1.000000004 pounds per cubic meter.
pounds per cubic meter = dram per cubic inches × 238.37400037
For a page dedicated to this direction, see Dram per Cubic inch to Pound per Cubic Meter.
Understanding the Pound per Cubic Meter (lb/m3)
Mass per volume density.
Understanding the Dram per Cubic inch (dr/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many dram per cubic inches are in 1 pound per cubic meter?
1 pound per cubic meter equals 0.0041950884 dram per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cubic meter to dram per cubic inch?
Multiply the pound per cubic meter value by 0.004195088384. The converter above does this instantly to whatever precision you set.
How do I convert dram per cubic inch back to pound per cubic meter?
Use the reverse factor: 1 dram per cubic inch equals 238.3740004 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 dram per cubic inch?
Dram per Cubic inch (dr/in3) is a unit of density.
Is the pound per cubic meter to dram per cubic inch conversion exact?
Yes. Both pound per cubic meter and dram per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 0.004195088384 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.