Mass per volume density.
Pounds per Quart to Megagrams per Gallon Converter — lb/qt to Mg/gal
Convert Pound per Quart (lb/qt) to Megagram per Gallon (Mg/gal) using the exact conversion factor (1 pound per quart = 0.0018143695 megagram per gallon). See the formula, worked examples, and conversion table.
Pounds per Quart to Megagrams per 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 479.3057093 / 264172.0524.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Quart to Megagrams per Gallon
Pound per Quart and Megagram per 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
megagrams per gallon = pounds per quart × 0.00181436948
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per quart equals 479.305709268 base units, and 1 megagram per gallon equals 264172.052358 base units, so dividing one by the other gives the direct pound per quart-to-megagram per gallon factor of 0.00181436948.
Simple example
1 lb/qt × 0.00181436948 = 0.0018143695 Mg/gal
1 pound per quart = 0.0018143695 megagrams per gallon.
Real-world example
1,000 lb/qt × 0.00181436948 = 1.81436948 Mg/gal
1,000 pounds per quart = 1.81436948 megagrams per gallon.
Conversion table
| Pound per Quart (lb/qt) | Megagram per Gallon (Mg/gal) |
|---|---|
| 0.1 lb/qt | 0.0001814369 Mg/gal |
| 1 lb/qt | 0.0018143695 Mg/gal |
| 10 lb/qt | 0.0181436948 Mg/gal |
| 100 lb/qt | 0.181436948 Mg/gal |
| 1,000 lb/qt | 1.81436948 Mg/gal |
| 10,000 lb/qt | 18.1436948 Mg/gal |
Reverse conversion: Megagram per Gallon to Pound per Quart
0.0018143695 Mg/gal × 551.1556555 = 1.000000011 lb/qt
0.0018143695 megagrams per gallon = 1.000000011 pounds per quart.
pounds per quart = megagrams per gallon × 551.155655462
For a page dedicated to this direction, see Megagram per Gallon to Pound per Quart.
Understanding the Pound per Quart (lb/qt)
Mass per volume density.
Understanding the Megagram per Gallon (Mg/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many megagrams per gallon are in 1 pound per quart?
1 pound per quart equals 0.0018143695 megagrams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert pound per quart to megagram per gallon?
Multiply the pound per quart value by 0.00181436948. The converter above does this instantly to whatever precision you set.
How do I convert megagram per gallon back to pound per quart?
Use the reverse factor: 1 megagram per gallon equals 551.1556555 pounds per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per quart?
Pound per Quart (lb/qt) is a unit of density.
What is a megagram per gallon?
Megagram per Gallon (Mg/gal) is a unit of density.
Is the pound per quart to megagram per gallon conversion exact?
Yes. Both pound per quart and megagram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.00181436948 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.