Mass per volume density.
Carats per Milliliter to Milligrams per Liter Converter — ct/mL to mg/L
Convert Carat per Milliliter (ct/mL) to Milligram per Liter (mg/L) using the exact conversion factor (1 carat per milliliter = 200,000 milligram per liter). See the formula, worked examples, conversion table, and common uses.
Carats per Milliliter to Milligrams per Liter 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 200 / 0.001.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Carats per Milliliter to Milligrams per Liter
Carat per Milliliter and Milligram per Liter 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 liter = carats per milliliter × 200000
This factor comes from each unit's defined relationship to the category's base unit: 1 carat per milliliter equals 200 base units, and 1 milligram per liter equals 0.001 base units, so dividing one by the other gives the direct carat per milliliter-to-milligram per liter factor of 200000.
Simple example
1 ct/mL × 200000 = 200,000 mg/L
1 carat per milliliter = 200,000 milligrams per liter.
Real-world example
1,000 ct/mL × 200000 = 200,000,000 mg/L
1,000 carats per milliliter = 200,000,000 milligrams per liter.
Conversion table
| Carat per Milliliter (ct/mL) | Milligram per Liter (mg/L) |
|---|---|
| 0.1 ct/mL | 20,000 mg/L |
| 1 ct/mL | 200,000 mg/L |
| 10 ct/mL | 2,000,000 mg/L |
| 100 ct/mL | 20,000,000 mg/L |
| 1,000 ct/mL | 200,000,000 mg/L |
| 10,000 ct/mL | 2,000,000,000 mg/L |
Reverse conversion: Milligram per Liter to Carat per Milliliter
1 mg/L × 0.000005 = 0.000005 ct/mL
1 milligram per liter = 0.000005 carats per milliliter.
carats per milliliter = milligrams per liter × 0.000005
For a page dedicated to this direction, see Milligram per Liter to Carat per Milliliter.
Understanding the Carat per Milliliter (ct/mL)
Mass per volume density.
Understanding the Milligram per Liter
Milligram per Liter (mg/L) measures mass concentration. One milligram of a substance per liter of solution — for dilute water-based solutions, numerically almost identical to parts per million (ppm). It is classified as a metric derived concentration unit.
Where it's used: The standard unit for drinking-water and environmental contaminant limits worldwide (EPA, WHO)
mg/L vs. g/L. Both are metric mass-concentration units; 1,000 mg/L equals 1 g/L. mg/L is used for dilute concentrations (drinking water, blood tests), while g/L is more common for higher concentrations.
Uses of the Milligram per Liter today
- Drinking-water quality standards and contaminant limits
- Blood and serum concentration reporting in clinical medicine
- Environmental and wastewater testing
Milligram per Liter — sources
- US EPA — National Primary Drinking Water Regulations — Contaminant limits are set and reported in mg/L.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per liter are in 1 carat per milliliter?
1 carat per milliliter equals 200,000 milligrams per liter, using the exact defined conversion factor rather than an estimate.
How do I convert carat per milliliter to milligram per liter?
Multiply the carat per milliliter value by 200000. The converter above does this instantly to whatever precision you set.
How do I convert milligram per liter back to carat per milliliter?
Use the reverse factor: 1 milligram per liter equals 0.000005 carats per milliliter. You can also use the swap control in the converter above to flip the direction instantly.
What is a carat per milliliter?
Carat per Milliliter (ct/mL) is a unit of density.
What is a milligram per liter?
Milligram per Liter (mg/L) measures mass concentration. One milligram of a substance per liter of solution — for dilute water-based solutions, numerically almost identical to parts per million (ppm). It is classified as a metric derived concentration unit.
Is the carat per milliliter to milligram per liter conversion exact?
Yes. Both carat per milliliter and milligram per liter are defined by fixed standards rather than physical artifacts, so the factor of 200000 used above is exact to as many digits as you choose to display.
What is the difference between mg/l vs. g/l?
Both are metric mass-concentration units; 1,000 mg/L equals 1 g/L. mg/L is used for dilute concentrations (drinking water, blood tests), while g/L is more common for higher concentrations.