Mass per volume density.
Grains per Teaspoon to Carats per Milliliter Converter — gr/tsp to ct/mL
Convert Grain per Teaspoon (gr/tsp) to Carat per Milliliter (ct/mL) using the exact conversion factor (1 grain per teaspoon = 0.0657333544 carat per milliliter). See the formula, worked examples, and conversion table.
Grains per Teaspoon to Carats per Milliliter 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 13.14667088 / 200.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Teaspoon to Carats per Milliliter
Grain per Teaspoon and Carat per Milliliter 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
carats per milliliter = grains per teaspoon × 0.0657333544138
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per teaspoon equals 13.1466708828 base units, and 1 carat per milliliter equals 200 base units, so dividing one by the other gives the direct grain per teaspoon-to-carat per milliliter factor of 0.0657333544138.
Simple example
1 gr/tsp × 0.06573335441 = 0.0657333544 ct/mL
1 grain per teaspoon = 0.0657333544 carats per milliliter.
Real-world example
1,000 gr/tsp × 0.06573335441 = 65.73335441 ct/mL
1,000 grains per teaspoon = 65.73335441 carats per milliliter.
Conversion table
| Grain per Teaspoon (gr/tsp) | Carat per Milliliter (ct/mL) |
|---|---|
| 0.1 gr/tsp | 0.0065733354 ct/mL |
| 1 gr/tsp | 0.0657333544 ct/mL |
| 10 gr/tsp | 0.6573335441 ct/mL |
| 100 gr/tsp | 6.573335441 ct/mL |
| 1,000 gr/tsp | 65.73335441 ct/mL |
| 10,000 gr/tsp | 657.3335441 ct/mL |
Reverse conversion: Carat per Milliliter to Grain per Teaspoon
0.0657333544 ct/mL × 15.21297687 = 0.9999999998 gr/tsp
0.0657333544 carats per milliliter = 0.9999999998 grains per teaspoon.
grains per teaspoon = carats per milliliter × 15.2129768657
For a page dedicated to this direction, see Carat per Milliliter to Grain per Teaspoon.
Understanding the Grain per Teaspoon (gr/tsp)
Mass per volume density.
Understanding the Carat per Milliliter (ct/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per milliliter are in 1 grain per teaspoon?
1 grain per teaspoon equals 0.0657333544 carats per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert grain per teaspoon to carat per milliliter?
Multiply the grain per teaspoon value by 0.06573335441. The converter above does this instantly to whatever precision you set.
How do I convert carat per milliliter back to grain per teaspoon?
Use the reverse factor: 1 carat per milliliter equals 15.21297687 grains per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per teaspoon?
Grain per Teaspoon (gr/tsp) is a unit of density.
What is a carat per milliliter?
Carat per Milliliter (ct/mL) is a unit of density.
Is the grain per teaspoon to carat per milliliter conversion exact?
Yes. Both grain per teaspoon and carat per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 0.06573335441 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.