Mass per volume density.
Ounces per Teaspoon to Ounces per Milliliter Converter — oz/tsp to oz/mL
Convert Ounce per Teaspoon (oz/tsp) to Ounce per Milliliter (oz/mL) using the exact conversion factor (1 ounce per teaspoon = 0.2028841362 ounce per milliliter). See the formula, worked examples, and conversion table.
Ounces per Teaspoon to Ounces per Milliliter 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 5751.668511 / 28349.52313.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Teaspoon to Ounces per Milliliter
Ounce per Teaspoon and Ounce per Milliliter 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
ounces per milliliter = ounces per teaspoon × 0.202884136211
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per teaspoon equals 5751.66851121 base units, and 1 ounce per milliliter equals 28349.523125 base units, so dividing one by the other gives the direct ounce per teaspoon-to-ounce per milliliter factor of 0.202884136211.
Simple example
1 oz/tsp × 0.2028841362 = 0.2028841362 oz/mL
1 ounce per teaspoon = 0.2028841362 ounces per milliliter.
Real-world example
1,000 oz/tsp × 0.2028841362 = 202.8841362 oz/mL
1,000 ounces per teaspoon = 202.8841362 ounces per milliliter.
Conversion table
| Ounce per Teaspoon (oz/tsp) | Ounce per Milliliter (oz/mL) |
|---|---|
| 0.1 oz/tsp | 0.0202884136 oz/mL |
| 1 oz/tsp | 0.2028841362 oz/mL |
| 10 oz/tsp | 2.028841362 oz/mL |
| 100 oz/tsp | 20.28841362 oz/mL |
| 1,000 oz/tsp | 202.8841362 oz/mL |
| 10,000 oz/tsp | 2,028.841362 oz/mL |
Reverse conversion: Ounce per Milliliter to Ounce per Teaspoon
0.2028841362 oz/mL × 4.928921594 = 0.9999999999 oz/tsp
0.2028841362 ounces per milliliter = 0.9999999999 ounces per teaspoon.
ounces per teaspoon = ounces per milliliter × 4.92892159375
For a page dedicated to this direction, see Ounce per Milliliter to Ounce per Teaspoon.
Understanding the Ounce per Teaspoon (oz/tsp)
Mass per volume density.
Understanding the Ounce per Milliliter (oz/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ounces per milliliter are in 1 ounce per teaspoon?
1 ounce per teaspoon equals 0.2028841362 ounces per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per teaspoon to ounce per milliliter?
Multiply the ounce per teaspoon value by 0.2028841362. The converter above does this instantly to whatever precision you set.
How do I convert ounce per milliliter back to ounce per teaspoon?
Use the reverse factor: 1 ounce per milliliter equals 4.928921594 ounces per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per teaspoon?
Ounce per Teaspoon (oz/tsp) is a unit of density.
What is a ounce per milliliter?
Ounce per Milliliter (oz/mL) is a unit of density.
Is the ounce per teaspoon to ounce per milliliter conversion exact?
Yes. Both ounce per teaspoon and ounce per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 0.2028841362 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.