Mass per volume density.
Carats per Teaspoon to Grain per Cubic inches Converter — ct/tsp to gr/in3
Convert Carat per Teaspoon (ct/tsp) to Grain per Cubic inch (gr/in3) using the exact conversion factor (1 carat per teaspoon = 10.2615162 grain per cubic inch). See the formula, worked examples, and conversion table.
Carats per Teaspoon to Grain per Cubic inches 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 40.57682724 / 3.954272101.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Teaspoon to Grain per Cubic inches
Carat per Teaspoon and Grain per Cubic inch 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
grain per cubic inches = carats per teaspoon × 10.2615162035
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per teaspoon equals 40.5768272422 base units, and 1 grain per cubic inch equals 3.95427210146 base units, so dividing one by the other gives the direct carat per teaspoon-to-grain per cubic inch factor of 10.2615162035.
Simple example
1 ct/tsp × 10.2615162 = 10.2615162 gr/in3
1 carat per teaspoon = 10.2615162 grain per cubic inches.
Real-world example
1,000 ct/tsp × 10.2615162 = 10,261.5162 gr/in3
1,000 carats per teaspoon = 10,261.5162 grain per cubic inches.
Conversion table
| Carat per Teaspoon (ct/tsp) | Grain per Cubic inch (gr/in3) |
|---|---|
| 0.1 ct/tsp | 1.02615162 gr/in3 |
| 1 ct/tsp | 10.2615162 gr/in3 |
| 10 ct/tsp | 102.615162 gr/in3 |
| 100 ct/tsp | 1,026.15162 gr/in3 |
| 1,000 ct/tsp | 10,261.5162 gr/in3 |
| 10,000 ct/tsp | 102,615.162 gr/in3 |
Reverse conversion: Grain per Cubic inch to Carat per Teaspoon
10.2615162 gr/in3 × 0.09745148574 = 0.9999999997 ct/tsp
10.2615162 grain per cubic inches = 0.9999999997 carats per teaspoon.
carats per teaspoon = grain per cubic inches × 0.0974514857422
For a page dedicated to this direction, see Grain per Cubic inch to Carat per Teaspoon.
Understanding the Carat per Teaspoon (ct/tsp)
Mass per volume density.
Understanding the Grain per Cubic inch (gr/in3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grain per cubic inches are in 1 carat per teaspoon?
1 carat per teaspoon equals 10.2615162 grain per cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert carat per teaspoon to grain per cubic inch?
Multiply the carat per teaspoon value by 10.2615162. The converter above does this instantly to whatever precision you set.
How do I convert grain per cubic inch back to carat per teaspoon?
Use the reverse factor: 1 grain per cubic inch equals 0.0974514857 carats per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per teaspoon?
Carat per Teaspoon (ct/tsp) is a unit of density.
What is a grain per cubic inch?
Grain per Cubic inch (gr/in3) is a unit of density.
Is the carat per teaspoon to grain per cubic inch conversion exact?
Yes. Both carat per teaspoon and grain per cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 10.2615162 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.