Mass per volume density.
Grams per Imperial gallon to Megagrams per Gallon Converter — g/imp gal to Mg/gal
Convert Gram per Imperial gallon (g/imp gal) to Megagram per Gallon (Mg/gal) using the exact conversion factor (1 gram per imperial gallon = 8.326742e-7 megagram per gallon). See the formula, worked examples, and conversion table.
Grams per Imperial gallon to Megagrams per 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 0.2199692483 / 264172.0524.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Imperial gallon to Megagrams per Gallon
Gram per Imperial gallon and Megagram per 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
megagrams per gallon = grams per imperial gallon × 8.326742e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per imperial gallon equals 0.219969248299 base units, and 1 megagram per gallon equals 264172.052358 base units, so dividing one by the other gives the direct gram per imperial gallon-to-megagram per gallon factor of 8.326742e-7.
Simple example
1 g/imp gal × 8.326742e-7 = 8.326742e-7 Mg/gal
1 gram per imperial gallon = 8.326742e-7 megagrams per gallon.
Real-world example
1,000 g/imp gal × 8.326742e-7 = 0.0008326742 Mg/gal
1,000 grams per imperial gallon = 0.0008326742 megagrams per gallon.
Conversion table
| Gram per Imperial gallon (g/imp gal) | Megagram per Gallon (Mg/gal) |
|---|---|
| 0.1 g/imp gal | 8.326742e-8 Mg/gal |
| 1 g/imp gal | 8.326742e-7 Mg/gal |
| 10 g/imp gal | 0.0000083267 Mg/gal |
| 100 g/imp gal | 0.0000832674 Mg/gal |
| 1,000 g/imp gal | 0.0008326742 Mg/gal |
| 10,000 g/imp gal | 0.0083267418 Mg/gal |
Reverse conversion: Megagram per Gallon to Gram per Imperial gallon
8.326742e-7 Mg/gal × 1200949.926 = 1.000000018 g/imp gal
8.326742e-7 megagrams per gallon = 1.000000018 grams per imperial gallon.
grams per imperial gallon = megagrams per gallon × 1200949.9255
For a page dedicated to this direction, see Megagram per Gallon to Gram per Imperial gallon.
Understanding the Gram per Imperial gallon (g/imp gal)
Mass per volume density.
Understanding the Megagram per Gallon (Mg/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many megagrams per gallon are in 1 gram per imperial gallon?
1 gram per imperial gallon equals 8.326742e-7 megagrams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert gram per imperial gallon to megagram per gallon?
Multiply the gram per imperial gallon value by 8.326742e-7. The converter above does this instantly to whatever precision you set.
How do I convert megagram per gallon back to gram per imperial gallon?
Use the reverse factor: 1 megagram per gallon equals 1,200,949.926 grams per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per imperial gallon?
Gram per Imperial gallon (g/imp gal) is a unit of density.
What is a megagram per gallon?
Megagram per Gallon (Mg/gal) is a unit of density.
Is the gram per imperial gallon to megagram per gallon conversion exact?
Yes. Both gram per imperial gallon and megagram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 8.326742e-7 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.