Mass per volume density.
Grains per Imperial gallon to Pounds per Cubic Meter Converter — gr/imp gal to lb/m3
Convert Grain per Imperial gallon (gr/imp gal) to Pound per Cubic Meter (lb/m3) using the exact conversion factor (1 grain per imperial gallon = 0.0314241783 pound per cubic meter). See the formula, worked examples, and conversion table.
Grains per Imperial gallon to Pounds per Cubic Meter 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 0.01425376752 / 0.45359237.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Imperial gallon to Pounds per Cubic Meter
Grain per Imperial gallon and Pound per Cubic Meter 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
pounds per cubic meter = grains per imperial gallon × 0.0314241783284
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per imperial gallon equals 0.0142537675233 base units, and 1 pound per cubic meter equals 0.45359237 base units, so dividing one by the other gives the direct grain per imperial gallon-to-pound per cubic meter factor of 0.0314241783284.
Simple example
1 gr/imp gal × 0.03142417833 = 0.0314241783 lb/m3
1 grain per imperial gallon = 0.0314241783 pounds per cubic meter.
Real-world example
1,000 gr/imp gal × 0.03142417833 = 31.42417833 lb/m3
1,000 grains per imperial gallon = 31.42417833 pounds per cubic meter.
Conversion table
| Grain per Imperial gallon (gr/imp gal) | Pound per Cubic Meter (lb/m3) |
|---|---|
| 0.1 gr/imp gal | 0.0031424178 lb/m3 |
| 1 gr/imp gal | 0.0314241783 lb/m3 |
| 10 gr/imp gal | 0.3142417833 lb/m3 |
| 100 gr/imp gal | 3.142417833 lb/m3 |
| 1,000 gr/imp gal | 31.42417833 lb/m3 |
| 10,000 gr/imp gal | 314.2417833 lb/m3 |
Reverse conversion: Pound per Cubic Meter to Grain per Imperial gallon
0.0314241783 lb/m3 × 31.82263 = 0.9999999991 gr/imp gal
0.0314241783 pounds per cubic meter = 0.9999999991 grains per imperial gallon.
grains per imperial gallon = pounds per cubic meter × 31.82263
For a page dedicated to this direction, see Pound per Cubic Meter to Grain per Imperial gallon.
Understanding the Grain per Imperial gallon (gr/imp gal)
Mass per volume density.
Understanding the Pound per Cubic Meter (lb/m3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per cubic meter are in 1 grain per imperial gallon?
1 grain per imperial gallon equals 0.0314241783 pounds per cubic meter, using the exact defined conversion factor rather than an estimate.
How do I convert grain per imperial gallon to pound per cubic meter?
Multiply the grain per imperial gallon value by 0.03142417833. The converter above does this instantly to whatever precision you set.
How do I convert pound per cubic meter back to grain per imperial gallon?
Use the reverse factor: 1 pound per cubic meter equals 31.82263 grains per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per imperial gallon?
Grain per Imperial gallon (gr/imp gal) is a unit of density.
What is a pound per cubic meter?
Pound per Cubic Meter (lb/m3) is a unit of density.
Is the grain per imperial gallon to pound per cubic meter conversion exact?
Yes. Both grain per imperial gallon and pound per cubic meter are defined by fixed standards rather than physical artifacts, so the factor of 0.03142417833 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.