Mass per volume density.
Drams per Milliliter to Troy ounces per Teaspoon Converter — dr/mL to oz t/tsp
Convert Dram per Milliliter (dr/mL) to Troy ounce per Teaspoon (oz t/tsp) using the exact conversion factor (1 dram per milliliter = 0.2807816663 troy ounce per teaspoon). See the formula, worked examples, and conversion table.
Drams per Milliliter to Troy ounces 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 1771.845195 / 6310.402024.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Milliliter to Troy ounces per Teaspoon
Dram per Milliliter and Troy ounce 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
troy ounces per teaspoon = drams per milliliter × 0.280781666311
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per milliliter equals 1771.84519531 base units, and 1 troy ounce per teaspoon equals 6310.40202373 base units, so dividing one by the other gives the direct dram per milliliter-to-troy ounce per teaspoon factor of 0.280781666311.
Simple example
1 dr/mL × 0.2807816663 = 0.2807816663 oz t/tsp
1 dram per milliliter = 0.2807816663 troy ounces per teaspoon.
Real-world example
1,000 dr/mL × 0.2807816663 = 280.7816663 oz t/tsp
1,000 drams per milliliter = 280.7816663 troy ounces per teaspoon.
Conversion table
| Dram per Milliliter (dr/mL) | Troy ounce per Teaspoon (oz t/tsp) |
|---|---|
| 0.1 dr/mL | 0.0280781666 oz t/tsp |
| 1 dr/mL | 0.2807816663 oz t/tsp |
| 10 dr/mL | 2.807816663 oz t/tsp |
| 100 dr/mL | 28.07816663 oz t/tsp |
| 1,000 dr/mL | 280.7816663 oz t/tsp |
| 10,000 dr/mL | 2,807.816663 oz t/tsp |
Reverse conversion: Troy ounce per Teaspoon to Dram per Milliliter
0.2807816663 oz t/tsp × 3.561486094 = 1 dr/mL
0.2807816663 troy ounces per teaspoon = 1 drams per milliliter.
drams per milliliter = troy ounces per teaspoon × 3.56148609394
For a page dedicated to this direction, see Troy ounce per Teaspoon to Dram per Milliliter.
Understanding the Dram per Milliliter (dr/mL)
Mass per volume density.
Understanding the Troy ounce per Teaspoon (oz t/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many troy ounces per teaspoon are in 1 dram per milliliter?
1 dram per milliliter equals 0.2807816663 troy ounces per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert dram per milliliter to troy ounce per teaspoon?
Multiply the dram per milliliter value by 0.2807816663. The converter above does this instantly to whatever precision you set.
How do I convert troy ounce per teaspoon back to dram per milliliter?
Use the reverse factor: 1 troy ounce per teaspoon equals 3.561486094 drams per milliliter. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per milliliter?
Dram per Milliliter (dr/mL) is a unit of density.
What is a troy ounce per teaspoon?
Troy ounce per Teaspoon (oz t/tsp) is a unit of density.
Is the dram per milliliter to troy ounce per teaspoon conversion exact?
Yes. Both dram per milliliter and troy ounce per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 0.2807816663 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.