Mass per volume density.
Pounds per Imperial gallon to Grams per Gallon Converter — lb/imp gal to g/gal
Convert Pound per Imperial gallon (lb/imp gal) to Gram per Gallon (g/gal) using the exact conversion factor (1 pound per imperial gallon = 377.6946568 gram per gallon). See the formula, worked examples, and conversion table.
Pounds per Imperial gallon to Grams 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 99.77637266 / 0.2641720524.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Imperial gallon to Grams per Gallon
Pound per Imperial gallon and Gram 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
grams per gallon = pounds per imperial gallon × 377.694656844
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per imperial gallon equals 99.7763726631 base units, and 1 gram per gallon equals 0.264172052358 base units, so dividing one by the other gives the direct pound per imperial gallon-to-gram per gallon factor of 377.694656844.
Simple example
1 lb/imp gal × 377.6946568 = 377.6946568 g/gal
1 pound per imperial gallon = 377.6946568 grams per gallon.
Real-world example
1,000 lb/imp gal × 377.6946568 = 377,694.6568 g/gal
1,000 pounds per imperial gallon = 377,694.6568 grams per gallon.
Conversion table
| Pound per Imperial gallon (lb/imp gal) | Gram per Gallon (g/gal) |
|---|---|
| 0.1 lb/imp gal | 37.76946568 g/gal |
| 1 lb/imp gal | 377.6946568 g/gal |
| 10 lb/imp gal | 3,776.946568 g/gal |
| 100 lb/imp gal | 37,769.46568 g/gal |
| 1,000 lb/imp gal | 377,694.6568 g/gal |
| 10,000 lb/imp gal | 3,776,946.568 g/gal |
Reverse conversion: Gram per Gallon to Pound per Imperial gallon
377.6946568 g/gal × 0.002647641373 = 0.9999999999 lb/imp gal
377.6946568 grams per gallon = 0.9999999999 pounds per imperial gallon.
pounds per imperial gallon = grams per gallon × 0.00264764137348
For a page dedicated to this direction, see Gram per Gallon to Pound per Imperial gallon.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Understanding the Gram per Gallon (g/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grams per gallon are in 1 pound per imperial gallon?
1 pound per imperial gallon equals 377.6946568 grams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert pound per imperial gallon to gram per gallon?
Multiply the pound per imperial gallon value by 377.6946568. The converter above does this instantly to whatever precision you set.
How do I convert gram per gallon back to pound per imperial gallon?
Use the reverse factor: 1 gram per gallon equals 0.0026476414 pounds per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per imperial gallon?
Pound per Imperial gallon (lb/imp gal) is a unit of density.
What is a gram per gallon?
Gram per Gallon (g/gal) is a unit of density.
Is the pound per imperial gallon to gram per gallon conversion exact?
Yes. Both pound per imperial gallon and gram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 377.6946568 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.