Mass per volume density.
Ounces per Teaspoon to Milligrams per Cup Converter — oz/tsp to mg/cup
Convert Ounce per Teaspoon (oz/tsp) to Milligram per Cup (mg/cup) using the exact conversion factor (1 ounce per teaspoon = 1,360,777.11 milligram per cup). See the formula, worked examples, and conversion table.
Ounces per Teaspoon to Milligrams per Cup 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 / 0.004226752838.
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 Cup
Ounce per Teaspoon and Milligram per Cup 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 cup = ounces per teaspoon × 1360777.11
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 cup equals 0.00422675283773 base units, so dividing one by the other gives the direct ounce per teaspoon-to-milligram per cup factor of 1360777.11.
Simple example
1 oz/tsp × 1360777.11 = 1,360,777.11 mg/cup
1 ounce per teaspoon = 1,360,777.11 milligrams per cup.
Real-world example
1,000 oz/tsp × 1360777.11 = 1,360,777,110 mg/cup
1,000 ounces per teaspoon = 1,360,777,110 milligrams per cup.
Conversion table
| Ounce per Teaspoon (oz/tsp) | Milligram per Cup (mg/cup) |
|---|---|
| 0.1 oz/tsp | 136,077.711 mg/cup |
| 1 oz/tsp | 1,360,777.11 mg/cup |
| 10 oz/tsp | 13,607,771.1 mg/cup |
| 100 oz/tsp | 136,077,711 mg/cup |
| 1,000 oz/tsp | 1,360,777,110 mg/cup |
| 10,000 oz/tsp | 13,607,771,100 mg/cup |
Reverse conversion: Milligram per Cup to Ounce per Teaspoon
1 mg/cup × 7.348742e-7 = 7.348742e-7 oz/tsp
1 milligram per cup = 7.348742e-7 ounces per teaspoon.
ounces per teaspoon = milligrams per cup × 7.348742e-7
For a page dedicated to this direction, see Milligram per Cup to Ounce per Teaspoon.
Understanding the Ounce per Teaspoon (oz/tsp)
Mass per volume density.
Understanding the Milligram per Cup (mg/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per cup are in 1 ounce per teaspoon?
1 ounce per teaspoon equals 1,360,777.11 milligrams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per teaspoon to milligram per cup?
Multiply the ounce per teaspoon value by 1360777.11. The converter above does this instantly to whatever precision you set.
How do I convert milligram per cup back to ounce per teaspoon?
Use the reverse factor: 1 milligram per cup equals 7.348742e-7 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 cup?
Milligram per Cup (mg/cup) is a unit of density.
Is the ounce per teaspoon to milligram per cup conversion exact?
Yes. Both ounce per teaspoon and milligram per cup are defined by fixed standards rather than physical artifacts, so the factor of 1360777.11 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.