Mass per volume density.
Milligrams per Imperial gallon to Pounds per Liter Converter — mg/imp gal to lb/L
Convert Milligram per Imperial gallon (mg/imp gal) to Pound per Liter (lb/L) using the exact conversion factor (1 milligram per imperial gallon = 4.849492e-7 pound per liter). See the formula, worked examples, and conversion table.
Milligrams per Imperial gallon to Pounds per Liter 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 0.0002199692483 / 453.59237.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Imperial gallon to Pounds per Liter
Milligram per Imperial gallon and Pound per Liter 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 liter = milligrams per imperial gallon × 4.849492e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 milligram per imperial gallon equals 0.000219969248299 base units, and 1 pound per liter equals 453.59237 base units, so dividing one by the other gives the direct milligram per imperial gallon-to-pound per liter factor of 4.849492e-7.
Simple example
1 mg/imp gal × 4.849492e-7 = 4.849492e-7 lb/L
1 milligram per imperial gallon = 4.849492e-7 pounds per liter.
Real-world example
1,000 mg/imp gal × 4.849492e-7 = 0.0004849492 lb/L
1,000 milligrams per imperial gallon = 0.0004849492 pounds per liter.
Conversion table
| Milligram per Imperial gallon (mg/imp gal) | Pound per Liter (lb/L) |
|---|---|
| 0.1 mg/imp gal | 4.849492e-8 lb/L |
| 1 mg/imp gal | 4.849492e-7 lb/L |
| 10 mg/imp gal | 0.0000048495 lb/L |
| 100 mg/imp gal | 0.0000484949 lb/L |
| 1,000 mg/imp gal | 0.0004849492 lb/L |
| 10,000 mg/imp gal | 0.0048494918 lb/L |
Reverse conversion: Pound per Liter to Milligram per Imperial gallon
4.849492e-7 lb/L × 2062071.737 = 1.000000039 mg/imp gal
4.849492e-7 pounds per liter = 1.000000039 milligrams per imperial gallon.
milligrams per imperial gallon = pounds per liter × 2062071.73733
For a page dedicated to this direction, see Pound per Liter to Milligram per Imperial gallon.
Understanding the Milligram per Imperial gallon (mg/imp gal)
Mass per volume density.
Understanding the Pound per Liter (lb/L)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per liter are in 1 milligram per imperial gallon?
1 milligram per imperial gallon equals 4.849492e-7 pounds per liter, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per imperial gallon to pound per liter?
Multiply the milligram 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 liter back to milligram per imperial gallon?
Use the reverse factor: 1 pound per liter equals 2,062,071.737 milligrams per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a milligram per imperial gallon?
Milligram per Imperial gallon (mg/imp gal) is a unit of density.
What is a pound per liter?
Pound per Liter (lb/L) is a unit of density.
Is the milligram per imperial gallon to pound per liter conversion exact?
Yes. Both milligram per imperial gallon and pound per liter 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.