Mass per volume density.
Grams per Imperial gallon to Pounds per Milliliter Converter — g/imp gal to lb/mL
Convert Gram per Imperial gallon (g/imp gal) to Pound per Milliliter (lb/mL) using the exact conversion factor (1 gram per imperial gallon = 4.849492e-7 pound per milliliter). See the formula, worked examples, and conversion table.
Grams per Imperial gallon to Pounds per Milliliter 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 / 453592.37.
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 Pounds per Milliliter
Gram per Imperial gallon and Pound per Milliliter 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 milliliter = grams per imperial gallon × 4.849492e-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 pound per milliliter equals 453592.37 base units, so dividing one by the other gives the direct gram per imperial gallon-to-pound per milliliter factor of 4.849492e-7.
Simple example
1 g/imp gal × 4.849492e-7 = 4.849492e-7 lb/mL
1 gram per imperial gallon = 4.849492e-7 pounds per milliliter.
Real-world example
1,000 g/imp gal × 4.849492e-7 = 0.0004849492 lb/mL
1,000 grams per imperial gallon = 0.0004849492 pounds per milliliter.
Conversion table
| Gram per Imperial gallon (g/imp gal) | Pound per Milliliter (lb/mL) |
|---|---|
| 0.1 g/imp gal | 4.849492e-8 lb/mL |
| 1 g/imp gal | 4.849492e-7 lb/mL |
| 10 g/imp gal | 0.0000048495 lb/mL |
| 100 g/imp gal | 0.0000484949 lb/mL |
| 1,000 g/imp gal | 0.0004849492 lb/mL |
| 10,000 g/imp gal | 0.0048494918 lb/mL |
Reverse conversion: Pound per Milliliter to Gram per Imperial gallon
4.849492e-7 lb/mL × 2062071.737 = 1.000000039 g/imp gal
4.849492e-7 pounds per milliliter = 1.000000039 grams per imperial gallon.
grams per imperial gallon = pounds per milliliter × 2062071.73733
For a page dedicated to this direction, see Pound per Milliliter to Gram per Imperial gallon.
Understanding the Gram per Imperial gallon (g/imp gal)
Mass per volume density.
Understanding the Pound per Milliliter (lb/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per milliliter are in 1 gram per imperial gallon?
1 gram per imperial gallon equals 4.849492e-7 pounds per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per imperial gallon to pound per milliliter?
Multiply the gram per imperial gallon value by 4.849492e-7. The converter above does this instantly to whatever precision you set.
How do I convert pound per milliliter back to gram per imperial gallon?
Use the reverse factor: 1 pound per milliliter equals 2,062,071.737 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 pound per milliliter?
Pound per Milliliter (lb/mL) is a unit of density.
Is the gram per imperial gallon to pound per milliliter conversion exact?
Yes. Both gram per imperial gallon and pound per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 4.849492e-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.