Mass per volume density.
Drams per Teaspoon to Pounds per Gallon Converter — dr/tsp to lb/gal
Convert Dram per Teaspoon (dr/tsp) to Pound per Gallon (lb/gal) using the exact conversion factor (1 dram per teaspoon = 3 pound per gallon). See the formula, worked examples, conversion table, and common uses.
Drams per Teaspoon to Pounds per Gallon 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 359.479282 / 119.8264273.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Teaspoon to Pounds per Gallon
Dram per Teaspoon and Pound per Gallon 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
pounds per gallon = drams per teaspoon × 3
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per teaspoon equals 359.479281951 base units, and 1 pound per gallon equals 119.826427317 base units, so dividing one by the other gives the direct dram per teaspoon-to-pound per gallon factor of 3.
Simple example
1 dr/tsp × 3 = 3 lb/gal
1 dram per teaspoon = 3 pounds per gallon.
Real-world example
1,000 dr/tsp × 3 = 3,000 lb/gal
1,000 drams per teaspoon = 3,000 pounds per gallon.
Conversion table
| Dram per Teaspoon (dr/tsp) | Pound per Gallon (lb/gal) |
|---|---|
| 0.1 dr/tsp | 0.3 lb/gal |
| 1 dr/tsp | 3 lb/gal |
| 10 dr/tsp | 30 lb/gal |
| 100 dr/tsp | 300 lb/gal |
| 1,000 dr/tsp | 3,000 lb/gal |
| 10,000 dr/tsp | 30,000 lb/gal |
Reverse conversion: Pound per Gallon to Dram per Teaspoon
3 lb/gal × 0.3333333333 = 1 dr/tsp
3 pounds per gallon = 1 drams per teaspoon.
drams per teaspoon = pounds per gallon × 0.333333333333
For a page dedicated to this direction, see Pound per Gallon to Dram per Teaspoon.
Understanding the Dram per Teaspoon (dr/tsp)
Mass per volume density.
Understanding the Pound per Gallon
Pound per Gallon (lb/gal) measures density. The US customary unit for liquid density, based on the US gallon (231 cubic inches). It is classified as a US customary density unit.
Where it's used: United States (paint, fuel, and industrial liquid density specifications)
lb/gal vs. lb/ft³. Both are US customary density units; they're related through the real, fixed relationship between the US gallon and the cubic foot (1 cubic foot ≈ 7.48 US gallons), not a round conversion factor.
Uses of the Pound per Gallon today
- US paint and coatings density specifications
- US fuel and petroleum liquid density specs
- Industrial liquid handling and shipping weight calculations
Pound per Gallon — sources
- NIST Handbook 44 — General tables of units including US customary density measures.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per gallon are in 1 dram per teaspoon?
1 dram per teaspoon equals 3 pounds per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert dram per teaspoon to pound per gallon?
Multiply the dram per teaspoon value by 3. The converter above does this instantly to whatever precision you set.
How do I convert pound per gallon back to dram per teaspoon?
Use the reverse factor: 1 pound per gallon equals 0.3333333333 drams per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per teaspoon?
Dram per Teaspoon (dr/tsp) is a unit of density.
What is a pound per gallon?
Pound per Gallon (lb/gal) measures density. The US customary unit for liquid density, based on the US gallon (231 cubic inches). It is classified as a US customary density unit.
Is the dram per teaspoon to pound per gallon conversion exact?
Yes. Both dram per teaspoon and pound per gallon are defined by fixed standards rather than physical artifacts, so the factor of 3 used above is exact to as many digits as you choose to display.
What is the difference between lb/gal vs. lb/ft³?
Both are US customary density units; they're related through the real, fixed relationship between the US gallon and the cubic foot (1 cubic foot ≈ 7.48 US gallons), not a round conversion factor.