Mass per volume density.
Ounces per Teaspoon to Milligrams per Teaspoon Converter — oz/tsp to mg/tsp
Convert Ounce per Teaspoon (oz/tsp) to Milligram per Teaspoon (mg/tsp) using the exact conversion factor (1 ounce per teaspoon = 28,349.52313 milligram per teaspoon). See the formula, worked examples, and conversion table.
Ounces per Teaspoon 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 5751.668511 / 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 Teaspoon to Milligrams per Teaspoon
Ounce per Teaspoon 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 teaspoon × 28349.523125
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 milligram per teaspoon equals 0.202884136211 base units, so dividing one by the other gives the direct ounce per teaspoon-to-milligram per teaspoon factor of 28349.523125.
Simple example
1 oz/tsp × 28349.52313 = 28,349.52313 mg/tsp
1 ounce per teaspoon = 28,349.52313 milligrams per teaspoon.
Real-world example
1,000 oz/tsp × 28349.52313 = 28,349,523.13 mg/tsp
1,000 ounces per teaspoon = 28,349,523.13 milligrams per teaspoon.
Conversion table
| Ounce per Teaspoon (oz/tsp) | Milligram per Teaspoon (mg/tsp) |
|---|---|
| 0.1 oz/tsp | 2,834.952313 mg/tsp |
| 1 oz/tsp | 28,349.52313 mg/tsp |
| 10 oz/tsp | 283,495.2313 mg/tsp |
| 100 oz/tsp | 2,834,952.313 mg/tsp |
| 1,000 oz/tsp | 28,349,523.13 mg/tsp |
| 10,000 oz/tsp | 283,495,231.3 mg/tsp |
Reverse conversion: Milligram per Teaspoon to Ounce per Teaspoon
1 mg/tsp × 0.00003527396195 = 0.000035274 oz/tsp
1 milligram per teaspoon = 0.000035274 ounces per teaspoon.
ounces per teaspoon = milligrams per teaspoon × 0.0000352739619496
For a page dedicated to this direction, see Milligram per Teaspoon to Ounce per Teaspoon.
Understanding the Ounce per Teaspoon (oz/tsp)
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 teaspoon?
1 ounce per teaspoon equals 28,349.52313 milligrams per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per teaspoon to milligram per teaspoon?
Multiply the ounce per teaspoon value by 28349.52313. The converter above does this instantly to whatever precision you set.
How do I convert milligram per teaspoon back to ounce per teaspoon?
Use the reverse factor: 1 milligram per teaspoon equals 0.000035274 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 milligram per teaspoon?
Milligram per Teaspoon (mg/tsp) is a unit of density.
Is the ounce per teaspoon to milligram per teaspoon conversion exact?
Yes. Both ounce per teaspoon and milligram per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 28349.52313 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.