Mass per volume density.
Pounds per Imperial gallon to Drams per Teaspoon Converter — lb/imp gal to dr/tsp
Convert Pound per Imperial gallon (lb/imp gal) to Dram per Teaspoon (dr/tsp) using the exact conversion factor (1 pound per imperial gallon = 0.2775580615 dram per teaspoon). See the formula, worked examples, and conversion table.
Pounds per Imperial gallon to Drams per Teaspoon 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 99.77637266 / 359.479282.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Imperial gallon to Drams per Teaspoon
Pound per Imperial gallon and Dram per Teaspoon 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 teaspoon = pounds per imperial gallon × 0.277558061543
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per imperial gallon equals 99.7763726631 base units, and 1 dram per teaspoon equals 359.479281951 base units, so dividing one by the other gives the direct pound per imperial gallon-to-dram per teaspoon factor of 0.277558061543.
Simple example
1 lb/imp gal × 0.2775580615 = 0.2775580615 dr/tsp
1 pound per imperial gallon = 0.2775580615 drams per teaspoon.
Real-world example
1,000 lb/imp gal × 0.2775580615 = 277.5580615 dr/tsp
1,000 pounds per imperial gallon = 277.5580615 drams per teaspoon.
Conversion table
| Pound per Imperial gallon (lb/imp gal) | Dram per Teaspoon (dr/tsp) |
|---|---|
| 0.1 lb/imp gal | 0.0277558062 dr/tsp |
| 1 lb/imp gal | 0.2775580615 dr/tsp |
| 10 lb/imp gal | 2.775580615 dr/tsp |
| 100 lb/imp gal | 27.75580615 dr/tsp |
| 1,000 lb/imp gal | 277.5580615 dr/tsp |
| 10,000 lb/imp gal | 2,775.580615 dr/tsp |
Reverse conversion: Dram per Teaspoon to Pound per Imperial gallon
0.2775580615 dr/tsp × 3.602849777 = 0.9999999998 lb/imp gal
0.2775580615 drams per teaspoon = 0.9999999998 pounds per imperial gallon.
pounds per imperial gallon = drams per teaspoon × 3.60284977651
For a page dedicated to this direction, see Dram per Teaspoon to Pound per Imperial gallon.
Understanding the Pound per Imperial gallon (lb/imp gal)
Mass per volume density.
Understanding the Dram per Teaspoon (dr/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per teaspoon are in 1 pound per imperial gallon?
1 pound per imperial gallon equals 0.2775580615 drams per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert pound per imperial gallon to dram per teaspoon?
Multiply the pound per imperial gallon value by 0.2775580615. The converter above does this instantly to whatever precision you set.
How do I convert dram per teaspoon back to pound per imperial gallon?
Use the reverse factor: 1 dram per teaspoon equals 3.602849777 pounds per imperial gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per imperial gallon?
Pound per Imperial gallon (lb/imp gal) is a unit of density.
What is a dram per teaspoon?
Dram per Teaspoon (dr/tsp) is a unit of density.
Is the pound per imperial gallon to dram per teaspoon conversion exact?
Yes. Both pound per imperial gallon and dram per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 0.2775580615 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.