Mass per volume density.
Gram per Cubic inches to Milligrams per Teaspoon Converter — g/in3 to mg/tsp
Convert Gram per Cubic inch (g/in3) to Milligram per Teaspoon (mg/tsp) using the exact conversion factor (1 gram per cubic inch = 300.78125 milligram per teaspoon). See the formula, worked examples, and conversion table.
Gram per Cubic inches 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 61.02374409 / 0.2028841362.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gram per Cubic inches to Milligrams per Teaspoon
Gram per Cubic inch 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 = gram per cubic inches × 300.78125
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per cubic inch equals 61.0237440947 base units, and 1 milligram per teaspoon equals 0.202884136211 base units, so dividing one by the other gives the direct gram per cubic inch-to-milligram per teaspoon factor of 300.78125.
Simple example
1 g/in3 × 300.78125 = 300.78125 mg/tsp
1 gram per cubic inch = 300.78125 milligrams per teaspoon.
Real-world example
1,000 g/in3 × 300.78125 = 300,781.25 mg/tsp
1,000 gram per cubic inches = 300,781.25 milligrams per teaspoon.
Conversion table
| Gram per Cubic inch (g/in3) | Milligram per Teaspoon (mg/tsp) |
|---|---|
| 0.1 g/in3 | 30.078125 mg/tsp |
| 1 g/in3 | 300.78125 mg/tsp |
| 10 g/in3 | 3,007.8125 mg/tsp |
| 100 g/in3 | 30,078.125 mg/tsp |
| 1,000 g/in3 | 300,781.25 mg/tsp |
| 10,000 g/in3 | 3,007,812.5 mg/tsp |
Reverse conversion: Milligram per Teaspoon to Gram per Cubic inch
300.78125 mg/tsp × 0.003324675325 = 1 g/in3
300.78125 milligrams per teaspoon = 1 gram per cubic inch.
gram per cubic inches = milligrams per teaspoon × 0.00332467532468
For a page dedicated to this direction, see Milligram per Teaspoon to Gram per Cubic inch.
Understanding the Gram per Cubic inch (g/in3)
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 cubic inch?
1 gram per cubic inch equals 300.78125 milligrams per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert gram per cubic inch to milligram per teaspoon?
Multiply the gram per cubic inch value by 300.78125. The converter above does this instantly to whatever precision you set.
How do I convert milligram per teaspoon back to gram per cubic inch?
Use the reverse factor: 1 milligram per teaspoon equals 0.0033246753 gram per cubic inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per cubic inch?
Gram per Cubic inch (g/in3) 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 cubic inch to milligram per teaspoon conversion exact?
Yes. Both gram per cubic inch and milligram per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 300.78125 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.