Mass per volume density.
Pounds per Quart to Kilograms per Cup Converter — lb/qt to kg/cup
Convert Pound per Quart (lb/qt) to Kilogram per Cup (kg/cup) using the exact conversion factor (1 pound per quart = 0.1133980925 kilogram per cup). See the formula, worked examples, and conversion table.
Pounds per Quart to Kilograms per Cup 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 / 4226.752838.
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 Kilograms per Cup
Pound per Quart and Kilogram per Cup 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 cup = pounds per quart × 0.1133980925
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 kilogram per cup equals 4226.75283773 base units, so dividing one by the other gives the direct pound per quart-to-kilogram per cup factor of 0.1133980925.
Simple example
1 lb/qt × 0.1133980925 = 0.1133980925 kg/cup
1 pound per quart = 0.1133980925 kilograms per cup.
Real-world example
1,000 lb/qt × 0.1133980925 = 113.3980925 kg/cup
1,000 pounds per quart = 113.3980925 kilograms per cup.
Conversion table
| Pound per Quart (lb/qt) | Kilogram per Cup (kg/cup) |
|---|---|
| 0.1 lb/qt | 0.0113398093 kg/cup |
| 1 lb/qt | 0.1133980925 kg/cup |
| 10 lb/qt | 1.133980925 kg/cup |
| 100 lb/qt | 11.33980925 kg/cup |
| 1,000 lb/qt | 113.3980925 kg/cup |
| 10,000 lb/qt | 1,133.980925 kg/cup |
Reverse conversion: Kilogram per Cup to Pound per Quart
0.1133980925 kg/cup × 8.818490487 = 1 lb/qt
0.1133980925 kilograms per cup = 1 pound per quart.
pounds per quart = kilograms per cup × 8.8184904874
For a page dedicated to this direction, see Kilogram per Cup to Pound per Quart.
Understanding the Pound per Quart (lb/qt)
Mass per volume density.
Understanding the Kilogram per Cup (kg/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per cup are in 1 pound per quart?
1 pound per quart equals 0.1133980925 kilograms per cup, using the exact defined conversion factor rather than an estimate.
How do I convert pound per quart to kilogram per cup?
Multiply the pound per quart value by 0.1133980925. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per cup back to pound per quart?
Use the reverse factor: 1 kilogram per cup equals 8.818490487 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 kilogram per cup?
Kilogram per Cup (kg/cup) is a unit of density.
Is the pound per quart to kilogram per cup conversion exact?
Yes. Both pound per quart and kilogram per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.1133980925 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.