Mass per volume density.
Grains per Liter to Milligrams per Quart Converter — gr/L to mg/qt
Convert Grain per Liter (gr/L) to Milligram per Quart (mg/qt) using the exact conversion factor (1 grain per liter = 61.32263938 milligram per quart). See the formula, worked examples, and conversion table.
Grains per Liter to Milligrams per Quart 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 / 0.001056688209.
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 Milligrams per Quart
Grain per Liter and Milligram per Quart 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
milligrams per quart = grains per liter × 61.3226393761
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 milligram per quart equals 0.00105668820943 base units, so dividing one by the other gives the direct grain per liter-to-milligram per quart factor of 61.3226393761.
Simple example
1 gr/L × 61.32263938 = 61.32263938 mg/qt
1 grain per liter = 61.32263938 milligrams per quart.
Real-world example
1,000 gr/L × 61.32263938 = 61,322.63938 mg/qt
1,000 grains per liter = 61,322.63938 milligrams per quart.
Conversion table
| Grain per Liter (gr/L) | Milligram per Quart (mg/qt) |
|---|---|
| 0.1 gr/L | 6.132263938 mg/qt |
| 1 gr/L | 61.32263938 mg/qt |
| 10 gr/L | 613.2263938 mg/qt |
| 100 gr/L | 6,132.263938 mg/qt |
| 1,000 gr/L | 61,322.63938 mg/qt |
| 10,000 gr/L | 613,226.3938 mg/qt |
Reverse conversion: Milligram per Quart to Grain per Liter
61.32263938 mg/qt × 0.01630719112 = 1 gr/L
61.32263938 milligrams per quart = 1 grains per liter.
grains per liter = milligrams per quart × 0.0163071911153
For a page dedicated to this direction, see Milligram per Quart to Grain per Liter.
Understanding the Grain per Liter (gr/L)
Mass per volume density.
Understanding the Milligram per Quart (mg/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per quart are in 1 grain per liter?
1 grain per liter equals 61.32263938 milligrams per quart, using the exact defined conversion factor rather than an estimate.
How do I convert grain per liter to milligram per quart?
Multiply the grain per liter value by 61.32263938. The converter above does this instantly to whatever precision you set.
How do I convert milligram per quart back to grain per liter?
Use the reverse factor: 1 milligram per quart equals 0.0163071911 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 milligram per quart?
Milligram per Quart (mg/qt) is a unit of density.
Is the grain per liter to milligram per quart conversion exact?
Yes. Both grain per liter and milligram per quart are defined by fixed standards rather than physical artifacts, so the factor of 61.32263938 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.