Mass per volume density.
Pounds per Cup to Kilograms per Quart Converter — lb/cup to kg/qt
Convert Pound per Cup (lb/cup) to Kilogram per Quart (kg/qt) using the exact conversion factor (1 pound per cup = 1.81436948 kilogram per quart). See the formula, worked examples, and conversion table.
Pounds per Cup to Kilograms 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 1917.222837 / 1056.688209.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Cup to Kilograms per Quart
Pound per Cup and Kilogram 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
kilograms per quart = pounds per cup × 1.81436948
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per cup equals 1917.22283707 base units, and 1 kilogram per quart equals 1056.68820943 base units, so dividing one by the other gives the direct pound per cup-to-kilogram per quart factor of 1.81436948.
Simple example
1 lb/cup × 1.81436948 = 1.81436948 kg/qt
1 pound per cup = 1.81436948 kilograms per quart.
Real-world example
1,000 lb/cup × 1.81436948 = 1,814.36948 kg/qt
1,000 pounds per cup = 1,814.36948 kilograms per quart.
Conversion table
| Pound per Cup (lb/cup) | Kilogram per Quart (kg/qt) |
|---|---|
| 0.1 lb/cup | 0.181436948 kg/qt |
| 1 lb/cup | 1.81436948 kg/qt |
| 10 lb/cup | 18.1436948 kg/qt |
| 100 lb/cup | 181.436948 kg/qt |
| 1,000 lb/cup | 1,814.36948 kg/qt |
| 10,000 lb/cup | 18,143.6948 kg/qt |
Reverse conversion: Kilogram per Quart to Pound per Cup
1.81436948 kg/qt × 0.5511556555 = 1 lb/cup
1.81436948 kilograms per quart = 1 pound per cup.
pounds per cup = kilograms per quart × 0.551155655462
For a page dedicated to this direction, see Kilogram per Quart to Pound per Cup.
Understanding the Pound per Cup (lb/cup)
Mass per volume density.
Understanding the Kilogram per Quart (kg/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per quart are in 1 pound per cup?
1 pound per cup equals 1.81436948 kilograms per quart, using the exact defined conversion factor rather than an estimate.
How do I convert pound per cup to kilogram per quart?
Multiply the pound per cup value by 1.81436948. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per quart back to pound per cup?
Use the reverse factor: 1 kilogram per quart equals 0.5511556555 pounds per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per cup?
Pound per Cup (lb/cup) is a unit of density.
What is a kilogram per quart?
Kilogram per Quart (kg/qt) is a unit of density.
Is the pound per cup to kilogram per quart conversion exact?
Yes. Both pound per cup and kilogram per quart are defined by fixed standards rather than physical artifacts, so the factor of 1.81436948 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.