Mass per volume density.
Grams per Cubic Meter to Grams per Imperial gallon Converter — g/m3 to g/imp gal
Convert Gram per Cubic Meter (g/m3) to Gram per Imperial gallon (g/imp gal) using the exact conversion factor (1 gram per cubic meter = 0.00454609 gram per imperial gallon). See the formula, worked examples, and conversion table.
Grams per Cubic Meter to Grams per Imperial gallon 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 0.001 / 0.2199692483.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Cubic Meter to Grams per Imperial gallon
Gram per Cubic Meter and Gram per Imperial gallon 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
grams per imperial gallon = grams per cubic meter × 0.00454609
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per cubic meter equals 0.001 base units, and 1 gram per imperial gallon equals 0.219969248299 base units, so dividing one by the other gives the direct gram per cubic meter-to-gram per imperial gallon factor of 0.00454609.
Simple example
1 g/m3 × 0.00454609 = 0.00454609 g/imp gal
1 gram per cubic meter = 0.00454609 grams per imperial gallon.
Real-world example
1,000 g/m3 × 0.00454609 = 4.54609 g/imp gal
1,000 grams per cubic meter = 4.54609 grams per imperial gallon.
Conversion table
| Gram per Cubic Meter (g/m3) | Gram per Imperial gallon (g/imp gal) |
|---|---|
| 0.1 g/m3 | 0.000454609 g/imp gal |
| 1 g/m3 | 0.00454609 g/imp gal |
| 10 g/m3 | 0.0454609 g/imp gal |
| 100 g/m3 | 0.454609 g/imp gal |
| 1,000 g/m3 | 4.54609 g/imp gal |
| 10,000 g/m3 | 45.4609 g/imp gal |
Reverse conversion: Gram per Imperial gallon to Gram per Cubic Meter
0.00454609 g/imp gal × 219.9692483 = 1 g/m3
0.00454609 grams per imperial gallon = 1 gram per cubic meter.
grams per cubic meter = grams per imperial gallon × 219.969248299
For a page dedicated to this direction, see Gram per Imperial gallon to Gram per Cubic Meter.
Understanding the Gram per Cubic Meter (g/m3)
Mass per volume density.
Understanding the Gram per Imperial gallon (g/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grams per imperial gallon are in 1 gram per cubic meter?
1 gram per cubic meter equals 0.00454609 grams per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cubic meter to gram per imperial gallon?
Multiply the gram per cubic meter value by 0.00454609. The converter above does this instantly to whatever precision you set.
How do I convert gram per imperial gallon back to gram per cubic meter?
Use the reverse factor: 1 gram per imperial gallon equals 219.9692483 grams per cubic meter. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per cubic meter?
Gram per Cubic Meter (g/m3) is a unit of density.
What is a gram per imperial gallon?
Gram per Imperial gallon (g/imp gal) is a unit of density.
Is the gram per cubic meter to gram per imperial gallon conversion exact?
Yes. Both gram per cubic meter and gram per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.00454609 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.