Mass per volume density.
Grains per Liter to Carats per Milliliter Converter — gr/L to ct/mL
Convert Grain per Liter (gr/L) to Carat per Milliliter (ct/mL) using the exact conversion factor (1 grain per liter = 0.0003239946 carat per milliliter). See the formula, worked examples, and conversion table.
Grains per Liter 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 0.06479891 / 200.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Liter to Carats per Milliliter
Grain per Liter 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 liter × 0.00032399455
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per liter equals 0.06479891 base units, and 1 carat per milliliter equals 200 base units, so dividing one by the other gives the direct grain per liter-to-carat per milliliter factor of 0.00032399455.
Simple example
1 gr/L × 0.00032399455 = 0.0003239946 ct/mL
1 grain per liter = 0.0003239946 carats per milliliter.
Real-world example
1,000 gr/L × 0.00032399455 = 0.32399455 ct/mL
1,000 grains per liter = 0.32399455 carats per milliliter.
Conversion table
| Grain per Liter (gr/L) | Carat per Milliliter (ct/mL) |
|---|---|
| 0.1 gr/L | 0.0000323995 ct/mL |
| 1 gr/L | 0.0003239946 ct/mL |
| 10 gr/L | 0.0032399455 ct/mL |
| 100 gr/L | 0.032399455 ct/mL |
| 1,000 gr/L | 0.32399455 ct/mL |
| 10,000 gr/L | 3.2399455 ct/mL |
Reverse conversion: Carat per Milliliter to Grain per Liter
0.0003239946 ct/mL × 3086.471671 = 1.000000154 gr/L
0.0003239946 carats per milliliter = 1.000000154 grains per liter.
grains per liter = carats per milliliter × 3086.47167059
For a page dedicated to this direction, see Carat per Milliliter to Grain per Liter.
Understanding the Grain per Liter (gr/L)
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 liter?
1 grain per liter equals 0.0003239946 carats per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert grain per liter to carat per milliliter?
Multiply the grain per liter value by 0.00032399455. The converter above does this instantly to whatever precision you set.
How do I convert carat per milliliter back to grain per liter?
Use the reverse factor: 1 carat per milliliter equals 3,086.471671 grains per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per liter?
Grain per Liter (gr/L) 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 liter to carat per milliliter conversion exact?
Yes. Both grain per liter and carat per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 0.00032399455 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.