Mass per volume density.
Pounds per Pint to Drams per Quart Converter — lb/pt to dr/qt
Convert Pound per Pint (lb/pt) to Dram per Quart (dr/qt) using the exact conversion factor (1 pound per pint = 512 dram per quart). See the formula, worked examples, and conversion table.
Pounds per Pint to Drams 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 958.6114185 / 1.872287927.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Pint to Drams per Quart
Pound per Pint and Dram 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
drams per quart = pounds per pint × 512
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per pint equals 958.611418535 base units, and 1 dram per quart equals 1.87228792683 base units, so dividing one by the other gives the direct pound per pint-to-dram per quart factor of 512.
Simple example
1 lb/pt × 512 = 512 dr/qt
1 pound per pint = 512 drams per quart.
Real-world example
1,000 lb/pt × 512 = 512,000 dr/qt
1,000 pounds per pint = 512,000 drams per quart.
Conversion table
| Pound per Pint (lb/pt) | Dram per Quart (dr/qt) |
|---|---|
| 0.1 lb/pt | 51.2 dr/qt |
| 1 lb/pt | 512 dr/qt |
| 10 lb/pt | 5,120 dr/qt |
| 100 lb/pt | 51,200 dr/qt |
| 1,000 lb/pt | 512,000 dr/qt |
| 10,000 lb/pt | 5,120,000 dr/qt |
Reverse conversion: Dram per Quart to Pound per Pint
512 dr/qt × 0.001953125 = 1 lb/pt
512 drams per quart = 1 pound per pint.
pounds per pint = drams per quart × 0.001953125
For a page dedicated to this direction, see Dram per Quart to Pound per Pint.
Understanding the Pound per Pint (lb/pt)
Mass per volume density.
Understanding the Dram per Quart (dr/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per quart are in 1 pound per pint?
1 pound per pint equals 512 drams per quart, using the exact defined conversion factor rather than an estimate.
How do I convert pound per pint to dram per quart?
Multiply the pound per pint value by 512. The converter above does this instantly to whatever precision you set.
How do I convert dram per quart back to pound per pint?
Use the reverse factor: 1 dram per quart equals 0.001953125 pounds per pint. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per pint?
Pound per Pint (lb/pt) is a unit of density.
What is a dram per quart?
Dram per Quart (dr/qt) is a unit of density.
Is the pound per pint to dram per quart conversion exact?
Yes. Both pound per pint and dram per quart are defined by fixed standards rather than physical artifacts, so the factor of 512 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.