Mass per volume density.
Ounces per Milliliter to Milligrams per Teaspoon Converter — oz/mL to mg/tsp
Convert Ounce per Milliliter (oz/mL) to Milligram per Teaspoon (mg/tsp) using the exact conversion factor (1 ounce per milliliter = 139,732.5767 milligram per teaspoon). See the formula, worked examples, and conversion table.
Ounces per Milliliter to Milligrams 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 28349.52313 / 0.2028841362.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Milliliter to Milligrams per Teaspoon
Ounce per Milliliter and Milligram 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
milligrams per teaspoon = ounces per milliliter × 139732.576703
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per milliliter equals 28349.523125 base units, and 1 milligram per teaspoon equals 0.202884136211 base units, so dividing one by the other gives the direct ounce per milliliter-to-milligram per teaspoon factor of 139732.576703.
Simple example
1 oz/mL × 139732.5767 = 139,732.5767 mg/tsp
1 ounce per milliliter = 139,732.5767 milligrams per teaspoon.
Real-world example
1,000 oz/mL × 139732.5767 = 139,732,576.7 mg/tsp
1,000 ounces per milliliter = 139,732,576.7 milligrams per teaspoon.
Conversion table
| Ounce per Milliliter (oz/mL) | Milligram per Teaspoon (mg/tsp) |
|---|---|
| 0.1 oz/mL | 13,973.25767 mg/tsp |
| 1 oz/mL | 139,732.5767 mg/tsp |
| 10 oz/mL | 1,397,325.767 mg/tsp |
| 100 oz/mL | 13,973,257.67 mg/tsp |
| 1,000 oz/mL | 139,732,576.7 mg/tsp |
| 10,000 oz/mL | 1,397,325,767 mg/tsp |
Reverse conversion: Milligram per Teaspoon to Ounce per Milliliter
1 mg/tsp × 0.000007156527301 = 0.0000071565 oz/mL
1 milligram per teaspoon = 0.0000071565 ounces per milliliter.
ounces per milliliter = milligrams per teaspoon × 0.00000715652730088
For a page dedicated to this direction, see Milligram per Teaspoon to Ounce per Milliliter.
Understanding the Ounce per Milliliter (oz/mL)
Mass per volume density.
Understanding the Milligram per Teaspoon (mg/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per teaspoon are in 1 ounce per milliliter?
1 ounce per milliliter equals 139,732.5767 milligrams per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per milliliter to milligram per teaspoon?
Multiply the ounce per milliliter value by 139732.5767. The converter above does this instantly to whatever precision you set.
How do I convert milligram per teaspoon back to ounce per milliliter?
Use the reverse factor: 1 milligram per teaspoon equals 0.0000071565 ounces per milliliter. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per milliliter?
Ounce per Milliliter (oz/mL) is a unit of density.
What is a milligram per teaspoon?
Milligram per Teaspoon (mg/tsp) is a unit of density.
Is the ounce per milliliter to milligram per teaspoon conversion exact?
Yes. Both ounce per milliliter and milligram per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 139732.5767 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.