Mass per volume density.
Carats per Teaspoon to Grains per Milliliter Converter — ct/tsp to gr/mL
Convert Carat per Teaspoon (ct/tsp) to Grain per Milliliter (gr/mL) using the exact conversion factor (1 carat per teaspoon = 0.6261961388 grain per milliliter). See the formula, worked examples, and conversion table.
Carats per Teaspoon to Grains 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 40.57682724 / 64.79891.
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 Grains per Milliliter
Carat per Teaspoon and Grain 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
grains per milliliter = carats per teaspoon × 0.626196138827
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 milliliter equals 64.79891 base units, so dividing one by the other gives the direct carat per teaspoon-to-grain per milliliter factor of 0.626196138827.
Simple example
1 ct/tsp × 0.6261961388 = 0.6261961388 gr/mL
1 carat per teaspoon = 0.6261961388 grains per milliliter.
Real-world example
1,000 ct/tsp × 0.6261961388 = 626.1961388 gr/mL
1,000 carats per teaspoon = 626.1961388 grains per milliliter.
Conversion table
| Carat per Teaspoon (ct/tsp) | Grain per Milliliter (gr/mL) |
|---|---|
| 0.1 ct/tsp | 0.0626196139 gr/mL |
| 1 ct/tsp | 0.6261961388 gr/mL |
| 10 ct/tsp | 6.261961388 gr/mL |
| 100 ct/tsp | 62.61961388 gr/mL |
| 1,000 ct/tsp | 626.1961388 gr/mL |
| 10,000 ct/tsp | 6,261.961388 gr/mL |
Reverse conversion: Grain per Milliliter to Carat per Teaspoon
0.6261961388 gr/mL × 1.596943734 = 1 ct/tsp
0.6261961388 grains per milliliter = 1 carats per teaspoon.
carats per teaspoon = grains per milliliter × 1.59694373375
For a page dedicated to this direction, see Grain per Milliliter to Carat per Teaspoon.
Understanding the Carat per Teaspoon (ct/tsp)
Mass per volume density.
Understanding the Grain per Milliliter (gr/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per milliliter are in 1 carat per teaspoon?
1 carat per teaspoon equals 0.6261961388 grains per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert carat per teaspoon to grain per milliliter?
Multiply the carat per teaspoon value by 0.6261961388. The converter above does this instantly to whatever precision you set.
How do I convert grain per milliliter back to carat per teaspoon?
Use the reverse factor: 1 grain per milliliter equals 1.596943734 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 milliliter?
Grain per Milliliter (gr/mL) is a unit of density.
Is the carat per teaspoon to grain per milliliter conversion exact?
Yes. Both carat per teaspoon and grain per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 0.6261961388 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.