Mass per volume density.
Milligrams per Imperial gallon to Grains per Liter Converter — mg/imp gal to gr/L
Convert Milligram per Imperial gallon (mg/imp gal) to Grain per Liter (gr/L) using the exact conversion factor (1 milligram per imperial gallon = 0.0033946443 grain per liter). See the formula, worked examples, and conversion table.
Milligrams per Imperial gallon to Grains 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 / 0.06479891.
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 Grains per Liter
Milligram per Imperial gallon and Grain 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
grains per liter = milligrams per imperial gallon × 0.00339464426638
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 grain per liter equals 0.06479891 base units, so dividing one by the other gives the direct milligram per imperial gallon-to-grain per liter factor of 0.00339464426638.
Simple example
1 mg/imp gal × 0.003394644266 = 0.0033946443 gr/L
1 milligram per imperial gallon = 0.0033946443 grains per liter.
Real-world example
1,000 mg/imp gal × 0.003394644266 = 3.394644266 gr/L
1,000 milligrams per imperial gallon = 3.394644266 grains per liter.
Conversion table
| Milligram per Imperial gallon (mg/imp gal) | Grain per Liter (gr/L) |
|---|---|
| 0.1 mg/imp gal | 0.0003394644 gr/L |
| 1 mg/imp gal | 0.0033946443 gr/L |
| 10 mg/imp gal | 0.0339464427 gr/L |
| 100 mg/imp gal | 0.3394644266 gr/L |
| 1,000 mg/imp gal | 3.394644266 gr/L |
| 10,000 mg/imp gal | 33.94644266 gr/L |
Reverse conversion: Grain per Liter to Milligram per Imperial gallon
0.0033946443 gr/L × 294.5816768 = 1.00000001 mg/imp gal
0.0033946443 grains per liter = 1.00000001 milligrams per imperial gallon.
milligrams per imperial gallon = grains per liter × 294.581676762
For a page dedicated to this direction, see Grain per Liter to Milligram per Imperial gallon.
Understanding the Milligram per Imperial gallon (mg/imp gal)
Mass per volume density.
Understanding the Grain per Liter (gr/L)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per liter are in 1 milligram per imperial gallon?
1 milligram per imperial gallon equals 0.0033946443 grains per liter, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per imperial gallon to grain per liter?
Multiply the milligram per imperial gallon value by 0.003394644266. The converter above does this instantly to whatever precision you set.
How do I convert grain per liter back to milligram per imperial gallon?
Use the reverse factor: 1 grain per liter equals 294.5816768 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 grain per liter?
Grain per Liter (gr/L) is a unit of density.
Is the milligram per imperial gallon to grain per liter conversion exact?
Yes. Both milligram per imperial gallon and grain per liter are defined by fixed standards rather than physical artifacts, so the factor of 0.003394644266 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.