Mass per volume density.
Milligrams per Teaspoon to Micrograms per Cup Converter — mg/tsp to ug/cup
Convert Milligram per Teaspoon (mg/tsp) to Microgram per Cup (ug/cup) using the exact conversion factor (1 milligram per teaspoon = 48,000 microgram per cup). See the formula, worked examples, and conversion table.
Milligrams per Teaspoon to Micrograms 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 0.2028841362 / 4.22675284e-6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Teaspoon to Micrograms per Cup
Milligram per Teaspoon and Microgram 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
micrograms per cup = milligrams per teaspoon × 48000
This factor comes from each unit's defined relationship to the category's base unit: 1 milligram per teaspoon equals 0.202884136211 base units, and 1 microgram per cup equals 0.00000422675283773 base units, so dividing one by the other gives the direct milligram per teaspoon-to-microgram per cup factor of 48000.
Simple example
1 mg/tsp × 48000 = 48,000 ug/cup
1 milligram per teaspoon = 48,000 micrograms per cup.
Real-world example
1,000 mg/tsp × 48000 = 48,000,000 ug/cup
1,000 milligrams per teaspoon = 48,000,000 micrograms per cup.
Conversion table
| Milligram per Teaspoon (mg/tsp) | Microgram per Cup (ug/cup) |
|---|---|
| 0.1 mg/tsp | 4,800 ug/cup |
| 1 mg/tsp | 48,000 ug/cup |
| 10 mg/tsp | 480,000 ug/cup |
| 100 mg/tsp | 4,800,000 ug/cup |
| 1,000 mg/tsp | 48,000,000 ug/cup |
| 10,000 mg/tsp | 480,000,000 ug/cup |
Reverse conversion: Microgram per Cup to Milligram per Teaspoon
1 ug/cup × 0.00002083333333 = 0.0000208333 mg/tsp
1 microgram per cup = 0.0000208333 milligrams per teaspoon.
milligrams per teaspoon = micrograms per cup × 0.0000208333333333
For a page dedicated to this direction, see Microgram per Cup to Milligram per Teaspoon.
Understanding the Milligram per Teaspoon (mg/tsp)
Mass per volume density.
Understanding the Microgram per Cup (ug/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per cup are in 1 milligram per teaspoon?
1 milligram per teaspoon equals 48,000 micrograms per cup, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per teaspoon to microgram per cup?
Multiply the milligram per teaspoon value by 48000. The converter above does this instantly to whatever precision you set.
How do I convert microgram per cup back to milligram per teaspoon?
Use the reverse factor: 1 microgram per cup equals 0.0000208333 milligrams per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a milligram per teaspoon?
Milligram per Teaspoon (mg/tsp) is a unit of density.
What is a microgram per cup?
Microgram per Cup (ug/cup) is a unit of density.
Is the milligram per teaspoon to microgram per cup conversion exact?
Yes. Both milligram per teaspoon and microgram per cup are defined by fixed standards rather than physical artifacts, so the factor of 48000 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.