Mass per volume density.
Grams per Cup to Milligrams per Teaspoon Converter — g/cup to mg/tsp
Convert Gram per Cup (g/cup) to Milligram per Teaspoon (mg/tsp) using the exact conversion factor (1 gram per cup = 20.83333333 milligram per teaspoon). See the formula, worked examples, and conversion table.
Grams 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 4.226752838 / 0.2028841362.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Cup to Milligrams per Teaspoon
Gram 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 = grams per cup × 20.8333333333
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per cup equals 4.22675283773 base units, and 1 milligram per teaspoon equals 0.202884136211 base units, so dividing one by the other gives the direct gram per cup-to-milligram per teaspoon factor of 20.8333333333.
Simple example
1 g/cup × 20.83333333 = 20.83333333 mg/tsp
1 gram per cup = 20.83333333 milligrams per teaspoon.
Real-world example
1,000 g/cup × 20.83333333 = 20,833.33333 mg/tsp
1,000 grams per cup = 20,833.33333 milligrams per teaspoon.
Conversion table
| Gram per Cup (g/cup) | Milligram per Teaspoon (mg/tsp) |
|---|---|
| 0.1 g/cup | 2.083333333 mg/tsp |
| 1 g/cup | 20.83333333 mg/tsp |
| 10 g/cup | 208.3333333 mg/tsp |
| 100 g/cup | 2,083.333333 mg/tsp |
| 1,000 g/cup | 20,833.33333 mg/tsp |
| 10,000 g/cup | 208,333.3333 mg/tsp |
Reverse conversion: Milligram per Teaspoon to Gram per Cup
20.83333333 mg/tsp × 0.048 = 0.9999999998 g/cup
20.83333333 milligrams per teaspoon = 0.9999999998 grams per cup.
grams per cup = milligrams per teaspoon × 0.048
For a page dedicated to this direction, see Milligram per Teaspoon to Gram per Cup.
Understanding the Gram per Cup (g/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 gram per cup?
1 gram per cup equals 20.83333333 milligrams per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cup to milligram per teaspoon?
Multiply the gram per cup value by 20.83333333. The converter above does this instantly to whatever precision you set.
How do I convert milligram per teaspoon back to gram per cup?
Use the reverse factor: 1 milligram per teaspoon equals 0.048 grams per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per cup?
Gram per Cup (g/cup) is a unit of density.
What is a milligram per teaspoon?
Milligram per Teaspoon (mg/tsp) is a unit of density.
Is the gram per cup to milligram per teaspoon conversion exact?
Yes. Both gram per cup and milligram per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 20.83333333 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.