Mass per volume density.
Ounces per Cup to Milligrams per Teaspoon Converter — oz/cup to mg/tsp
Convert Ounce per Cup (oz/cup) to Milligram per Teaspoon (mg/tsp) using the exact conversion factor (1 ounce per cup = 590.6150651 milligram per teaspoon). See the formula, worked examples, and conversion table.
Ounces per Cup 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 119.8264273 / 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 Cup to Milligrams per Teaspoon
Ounce per Cup 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 cup × 590.615065104
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per cup equals 119.826427317 base units, and 1 milligram per teaspoon equals 0.202884136211 base units, so dividing one by the other gives the direct ounce per cup-to-milligram per teaspoon factor of 590.615065104.
Simple example
1 oz/cup × 590.6150651 = 590.6150651 mg/tsp
1 ounce per cup = 590.6150651 milligrams per teaspoon.
Real-world example
1,000 oz/cup × 590.6150651 = 590,615.0651 mg/tsp
1,000 ounces per cup = 590,615.0651 milligrams per teaspoon.
Conversion table
| Ounce per Cup (oz/cup) | Milligram per Teaspoon (mg/tsp) |
|---|---|
| 0.1 oz/cup | 59.06150651 mg/tsp |
| 1 oz/cup | 590.6150651 mg/tsp |
| 10 oz/cup | 5,906.150651 mg/tsp |
| 100 oz/cup | 59,061.50651 mg/tsp |
| 1,000 oz/cup | 590,615.0651 mg/tsp |
| 10,000 oz/cup | 5,906,150.651 mg/tsp |
Reverse conversion: Milligram per Teaspoon to Ounce per Cup
590.6150651 mg/tsp × 0.001693150174 = 1 oz/cup
590.6150651 milligrams per teaspoon = 1 ounces per cup.
ounces per cup = milligrams per teaspoon × 0.00169315017358
For a page dedicated to this direction, see Milligram per Teaspoon to Ounce per Cup.
Understanding the Ounce per Cup (oz/cup)
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 cup?
1 ounce per cup equals 590.6150651 milligrams per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per cup to milligram per teaspoon?
Multiply the ounce per cup value by 590.6150651. The converter above does this instantly to whatever precision you set.
How do I convert milligram per teaspoon back to ounce per cup?
Use the reverse factor: 1 milligram per teaspoon equals 0.0016931502 ounces per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per cup?
Ounce per Cup (oz/cup) 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 cup to milligram per teaspoon conversion exact?
Yes. Both ounce per cup and milligram per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 590.6150651 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.