Mass per volume density.
Pounds per Quart to Carats per Cup Converter — lb/qt to ct/cup
Convert Pound per Quart (lb/qt) to Carat per Cup (ct/cup) using the exact conversion factor (1 pound per quart = 566.9904625 carat per cup). See the formula, worked examples, and conversion table.
Pounds per Quart to Carats 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 / 0.8453505675.
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 Carats per Cup
Pound per Quart and Carat 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
carats per cup = pounds per quart × 566.9904625
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 carat per cup equals 0.845350567546 base units, so dividing one by the other gives the direct pound per quart-to-carat per cup factor of 566.9904625.
Simple example
1 lb/qt × 566.9904625 = 566.9904625 ct/cup
1 pound per quart = 566.9904625 carats per cup.
Real-world example
1,000 lb/qt × 566.9904625 = 566,990.4625 ct/cup
1,000 pounds per quart = 566,990.4625 carats per cup.
Conversion table
| Pound per Quart (lb/qt) | Carat per Cup (ct/cup) |
|---|---|
| 0.1 lb/qt | 56.69904625 ct/cup |
| 1 lb/qt | 566.9904625 ct/cup |
| 10 lb/qt | 5,669.904625 ct/cup |
| 100 lb/qt | 56,699.04625 ct/cup |
| 1,000 lb/qt | 566,990.4625 ct/cup |
| 10,000 lb/qt | 5,669,904.625 ct/cup |
Reverse conversion: Carat per Cup to Pound per Quart
566.9904625 ct/cup × 0.001763698097 = 1 lb/qt
566.9904625 carats per cup = 1 pounds per quart.
pounds per quart = carats per cup × 0.00176369809748
For a page dedicated to this direction, see Carat per Cup to Pound per Quart.
Understanding the Pound per Quart (lb/qt)
Mass per volume density.
Understanding the Carat per Cup (ct/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per cup are in 1 pound per quart?
1 pound per quart equals 566.9904625 carats per cup, using the exact defined conversion factor rather than an estimate.
How do I convert pound per quart to carat per cup?
Multiply the pound per quart value by 566.9904625. The converter above does this instantly to whatever precision you set.
How do I convert carat per cup back to pound per quart?
Use the reverse factor: 1 carat per cup equals 0.0017636981 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 carat per cup?
Carat per Cup (ct/cup) is a unit of density.
Is the pound per quart to carat per cup conversion exact?
Yes. Both pound per quart and carat per cup are defined by fixed standards rather than physical artifacts, so the factor of 566.9904625 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.