Mass per volume density.
Ounces per Fluid ounce to Milligrams per Teaspoon Converter — oz/fl oz to mg/tsp
Convert Ounce per Fluid ounce (oz/fl oz) to Milligram per Teaspoon (mg/tsp) using the exact conversion factor (1 ounce per fluid ounce = 4,724.920521 milligram per teaspoon). See the formula, worked examples, and conversion table.
Ounces per Fluid ounce 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 958.6114185 / 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 Fluid ounce to Milligrams per Teaspoon
Ounce per Fluid ounce 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 fluid ounce × 4724.92052083
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per fluid ounce equals 958.611418535 base units, and 1 milligram per teaspoon equals 0.202884136211 base units, so dividing one by the other gives the direct ounce per fluid ounce-to-milligram per teaspoon factor of 4724.92052083.
Simple example
1 oz/fl oz × 4724.920521 = 4,724.920521 mg/tsp
1 ounce per fluid ounce = 4,724.920521 milligrams per teaspoon.
Real-world example
1,000 oz/fl oz × 4724.920521 = 4,724,920.521 mg/tsp
1,000 ounces per fluid ounce = 4,724,920.521 milligrams per teaspoon.
Conversion table
| Ounce per Fluid ounce (oz/fl oz) | Milligram per Teaspoon (mg/tsp) |
|---|---|
| 0.1 oz/fl oz | 472.4920521 mg/tsp |
| 1 oz/fl oz | 4,724.920521 mg/tsp |
| 10 oz/fl oz | 47,249.20521 mg/tsp |
| 100 oz/fl oz | 472,492.0521 mg/tsp |
| 1,000 oz/fl oz | 4,724,920.521 mg/tsp |
| 10,000 oz/fl oz | 47,249,205.21 mg/tsp |
Reverse conversion: Milligram per Teaspoon to Ounce per Fluid ounce
1 mg/tsp × 0.0002116437717 = 0.0002116438 oz/fl oz
1 milligram per teaspoon = 0.0002116438 ounces per fluid ounce.
ounces per fluid ounce = milligrams per teaspoon × 0.000211643771697
For a page dedicated to this direction, see Milligram per Teaspoon to Ounce per Fluid ounce.
Understanding the Ounce per Fluid ounce (oz/fl oz)
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 fluid ounce?
1 ounce per fluid ounce equals 4,724.920521 milligrams per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per fluid ounce to milligram per teaspoon?
Multiply the ounce per fluid ounce value by 4724.920521. The converter above does this instantly to whatever precision you set.
How do I convert milligram per teaspoon back to ounce per fluid ounce?
Use the reverse factor: 1 milligram per teaspoon equals 0.0002116438 ounces per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per fluid ounce?
Ounce per Fluid ounce (oz/fl oz) 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 fluid ounce to milligram per teaspoon conversion exact?
Yes. Both ounce per fluid ounce and milligram per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 4724.920521 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.