Mass per volume density.
Grains per Liter to Pounds per Imperial gallon Converter — gr/L to lb/imp gal
Convert Grain per Liter (gr/L) to Pound per Imperial gallon (lb/imp gal) using the exact conversion factor (1 grain per liter = 0.0006494414 pound per imperial gallon). See the formula, worked examples, and conversion table.
Grains per Liter to Pounds 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 0.06479891 / 99.77637266.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Liter to Pounds per Imperial gallon
Grain per Liter and Pound 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
pounds per imperial gallon = grains per liter × 0.000649441428571
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per liter equals 0.06479891 base units, and 1 pound per imperial gallon equals 99.7763726631 base units, so dividing one by the other gives the direct grain per liter-to-pound per imperial gallon factor of 0.000649441428571.
Simple example
1 gr/L × 0.0006494414286 = 0.0006494414 lb/imp gal
1 grain per liter = 0.0006494414 pounds per imperial gallon.
Real-world example
1,000 gr/L × 0.0006494414286 = 0.6494414286 lb/imp gal
1,000 grains per liter = 0.6494414286 pounds per imperial gallon.
Conversion table
| Grain per Liter (gr/L) | Pound per Imperial gallon (lb/imp gal) |
|---|---|
| 0.1 gr/L | 0.0000649441 lb/imp gal |
| 1 gr/L | 0.0006494414 lb/imp gal |
| 10 gr/L | 0.0064944143 lb/imp gal |
| 100 gr/L | 0.0649441429 lb/imp gal |
| 1,000 gr/L | 0.6494414286 lb/imp gal |
| 10,000 gr/L | 6.494414286 lb/imp gal |
Reverse conversion: Pound per Imperial gallon to Grain per Liter
0.0006494414 lb/imp gal × 1539.784738 = 0.999999956 gr/L
0.0006494414 pounds per imperial gallon = 0.999999956 grains per liter.
grains per liter = pounds per imperial gallon × 1539.78473809
For a page dedicated to this direction, see Pound per Imperial gallon to Grain per Liter.
Understanding the Grain per Liter (gr/L)
Mass per volume density.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per imperial gallon are in 1 grain per liter?
1 grain per liter equals 0.0006494414 pounds per imperial gallon, using the exact defined conversion factor rather than an estimate.
How do I convert grain per liter to pound per imperial gallon?
Multiply the grain per liter value by 0.0006494414286. The converter above does this instantly to whatever precision you set.
How do I convert pound per imperial gallon back to grain per liter?
Use the reverse factor: 1 pound per imperial gallon equals 1,539.784738 grains per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per liter?
Grain per Liter (gr/L) is a unit of density.
What is a pound per imperial gallon?
Pound per Imperial gallon (lb/imp gal) is a unit of density.
Is the grain per liter to pound per imperial gallon conversion exact?
Yes. Both grain per liter and pound per imperial gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.0006494414286 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.