Mass per volume density.
Drams per Teaspoon to Milligrams per Gallon Converter — dr/tsp to mg/gal
Convert Dram per Teaspoon (dr/tsp) to Milligram per Gallon (mg/gal) using the exact conversion factor (1 dram per teaspoon = 1,360,777.11 milligram per gallon). See the formula, worked examples, and conversion table.
Drams per Teaspoon to Milligrams 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 / 0.0002641720524.
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 Milligrams per Gallon
Dram per Teaspoon and Milligram 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
milligrams per gallon = drams per teaspoon × 1360777.11
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 milligram per gallon equals 0.000264172052358 base units, so dividing one by the other gives the direct dram per teaspoon-to-milligram per gallon factor of 1360777.11.
Simple example
1 dr/tsp × 1360777.11 = 1,360,777.11 mg/gal
1 dram per teaspoon = 1,360,777.11 milligrams per gallon.
Real-world example
1,000 dr/tsp × 1360777.11 = 1,360,777,110 mg/gal
1,000 drams per teaspoon = 1,360,777,110 milligrams per gallon.
Conversion table
| Dram per Teaspoon (dr/tsp) | Milligram per Gallon (mg/gal) |
|---|---|
| 0.1 dr/tsp | 136,077.711 mg/gal |
| 1 dr/tsp | 1,360,777.11 mg/gal |
| 10 dr/tsp | 13,607,771.1 mg/gal |
| 100 dr/tsp | 136,077,711 mg/gal |
| 1,000 dr/tsp | 1,360,777,110 mg/gal |
| 10,000 dr/tsp | 13,607,771,100 mg/gal |
Reverse conversion: Milligram per Gallon to Dram per Teaspoon
1 mg/gal × 7.348742e-7 = 7.348742e-7 dr/tsp
1 milligram per gallon = 7.348742e-7 drams per teaspoon.
drams per teaspoon = milligrams per gallon × 7.348742e-7
For a page dedicated to this direction, see Milligram per Gallon to Dram per Teaspoon.
Understanding the Dram per Teaspoon (dr/tsp)
Mass per volume density.
Understanding the Milligram per Gallon (mg/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per gallon are in 1 dram per teaspoon?
1 dram per teaspoon equals 1,360,777.11 milligrams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert dram per teaspoon to milligram per gallon?
Multiply the dram per teaspoon value by 1360777.11. The converter above does this instantly to whatever precision you set.
How do I convert milligram per gallon back to dram per teaspoon?
Use the reverse factor: 1 milligram per gallon equals 7.348742e-7 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 milligram per gallon?
Milligram per Gallon (mg/gal) is a unit of density.
Is the dram per teaspoon to milligram per gallon conversion exact?
Yes. Both dram per teaspoon and milligram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 1360777.11 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.