Mass per volume density.
Pounds per Quart to Drams per Pint Converter — lb/qt to dr/pt
Convert Pound per Quart (lb/qt) to Dram per Pint (dr/pt) using the exact conversion factor (1 pound per quart = 128 dram per pint). See the formula, worked examples, and conversion table.
Pounds per Quart to Drams per Pint 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 / 3.744575854.
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 Drams per Pint
Pound per Quart and Dram per Pint 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 pint = pounds per quart × 128
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 dram per pint equals 3.74457585365 base units, so dividing one by the other gives the direct pound per quart-to-dram per pint factor of 128.
Simple example
1 lb/qt × 128 = 128 dr/pt
1 pound per quart = 128 drams per pint.
Real-world example
1,000 lb/qt × 128 = 128,000 dr/pt
1,000 pounds per quart = 128,000 drams per pint.
Conversion table
| Pound per Quart (lb/qt) | Dram per Pint (dr/pt) |
|---|---|
| 0.1 lb/qt | 12.8 dr/pt |
| 1 lb/qt | 128 dr/pt |
| 10 lb/qt | 1,280 dr/pt |
| 100 lb/qt | 12,800 dr/pt |
| 1,000 lb/qt | 128,000 dr/pt |
| 10,000 lb/qt | 1,280,000 dr/pt |
Reverse conversion: Dram per Pint to Pound per Quart
128 dr/pt × 0.0078125 = 1 lb/qt
128 drams per pint = 1 pound per quart.
pounds per quart = drams per pint × 0.0078125
For a page dedicated to this direction, see Dram per Pint to Pound per Quart.
Understanding the Pound per Quart (lb/qt)
Mass per volume density.
Understanding the Dram per Pint (dr/pt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per pint are in 1 pound per quart?
1 pound per quart equals 128 drams per pint, using the exact defined conversion factor rather than an estimate.
How do I convert pound per quart to dram per pint?
Multiply the pound per quart value by 128. The converter above does this instantly to whatever precision you set.
How do I convert dram per pint back to pound per quart?
Use the reverse factor: 1 dram per pint equals 0.0078125 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 dram per pint?
Dram per Pint (dr/pt) is a unit of density.
Is the pound per quart to dram per pint conversion exact?
Yes. Both pound per quart and dram per pint are defined by fixed standards rather than physical artifacts, so the factor of 128 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.