Mass per volume density.
Milligrams per Gallon to Carats per Quart Converter — mg/gal to ct/qt
Convert Milligram per Gallon (mg/gal) to Carat per Quart (ct/qt) using the exact conversion factor (1 milligram per gallon = 0.00125 carat per quart). See the formula, worked examples, and conversion table.
Milligrams per Gallon to Carats 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 0.0002641720524 / 0.2113376419.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Gallon to Carats per Quart
Milligram per Gallon and Carat 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
carats per quart = milligrams per gallon × 0.00125
This factor comes from each unit's defined relationship to the category's base unit: 1 milligram per gallon equals 0.000264172052358 base units, and 1 carat per quart equals 0.211337641887 base units, so dividing one by the other gives the direct milligram per gallon-to-carat per quart factor of 0.00125.
Simple example
1 mg/gal × 0.00125 = 0.00125 ct/qt
1 milligram per gallon = 0.00125 carats per quart.
Real-world example
1,000 mg/gal × 0.00125 = 1.25 ct/qt
1,000 milligrams per gallon = 1.25 carats per quart.
Conversion table
| Milligram per Gallon (mg/gal) | Carat per Quart (ct/qt) |
|---|---|
| 0.1 mg/gal | 0.000125 ct/qt |
| 1 mg/gal | 0.00125 ct/qt |
| 10 mg/gal | 0.0125 ct/qt |
| 100 mg/gal | 0.125 ct/qt |
| 1,000 mg/gal | 1.25 ct/qt |
| 10,000 mg/gal | 12.5 ct/qt |
Reverse conversion: Carat per Quart to Milligram per Gallon
0.00125 ct/qt × 800 = 1 mg/gal
0.00125 carats per quart = 1 milligrams per gallon.
milligrams per gallon = carats per quart × 800
For a page dedicated to this direction, see Carat per Quart to Milligram per Gallon.
Understanding the Milligram per Gallon (mg/gal)
Mass per volume density.
Understanding the Carat per Quart (ct/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per quart are in 1 milligram per gallon?
1 milligram per gallon equals 0.00125 carats per quart, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per gallon to carat per quart?
Multiply the milligram per gallon value by 0.00125. The converter above does this instantly to whatever precision you set.
How do I convert carat per quart back to milligram per gallon?
Use the reverse factor: 1 carat per quart equals 800 milligrams per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a milligram per gallon?
Milligram per Gallon (mg/gal) is a unit of density.
What is a carat per quart?
Carat per Quart (ct/qt) is a unit of density.
Is the milligram per gallon to carat per quart conversion exact?
Yes. Both milligram per gallon and carat per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.00125 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.