Mass per volume density.
Milligrams per Liter to Drams per Gallon Converter — mg/L to dr/gal
Convert Milligram per Liter (mg/L) to Dram per Gallon (dr/gal) using the exact conversion factor (1 milligram per liter = 0.0021364235 dram per gallon). See the formula, worked examples, conversion table, and common uses.
Milligrams per Liter to Drams per Gallon 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 0.001 / 0.4680719817.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Liter to Drams per Gallon
Milligram per Liter and Dram per Gallon 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. Milligram per Liter is most often used for drinking-water quality standards and contaminant limits.
Formula
drams per gallon = milligrams per liter × 0.00213642353972
This factor comes from each unit's defined relationship to the category's base unit: 1 milligram per liter equals 0.001 base units, and 1 dram per gallon equals 0.468071981707 base units, so dividing one by the other gives the direct milligram per liter-to-dram per gallon factor of 0.00213642353972.
Simple example
1 mg/L × 0.00213642354 = 0.0021364235 dr/gal
1 milligram per liter = 0.0021364235 drams per gallon.
Real-world example
1,000 mg/L × 0.00213642354 = 2.13642354 dr/gal
1,000 milligrams per liter = 2.13642354 drams per gallon.
Conversion table
| Milligram per Liter (mg/L) | Dram per Gallon (dr/gal) |
|---|---|
| 0.1 mg/L | 0.0002136424 dr/gal |
| 1 mg/L | 0.0021364235 dr/gal |
| 10 mg/L | 0.0213642354 dr/gal |
| 100 mg/L | 0.213642354 dr/gal |
| 1,000 mg/L | 2.13642354 dr/gal |
| 10,000 mg/L | 21.3642354 dr/gal |
Reverse conversion: Dram per Gallon to Milligram per Liter
0.0021364235 dr/gal × 468.0719817 = 0.9999999814 mg/L
0.0021364235 drams per gallon = 0.9999999814 milligrams per liter.
milligrams per liter = drams per gallon × 468.071981707
For a page dedicated to this direction, see Dram per Gallon to Milligram per Liter.
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
Understanding the Dram per Gallon (dr/gal)
Mass per volume density.
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 drams per gallon are in 1 milligram per liter?
1 milligram per liter equals 0.0021364235 drams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per liter to dram per gallon?
Multiply the milligram per liter value by 0.00213642354. The converter above does this instantly to whatever precision you set.
How do I convert dram per gallon back to milligram per liter?
Use the reverse factor: 1 dram per gallon equals 468.0719817 milligrams per liter. You can also use the swap control in the converter above to flip the direction instantly.
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.
What is a dram per gallon?
Dram per Gallon (dr/gal) is a unit of density.
Is the milligram per liter to dram per gallon conversion exact?
Yes. Both milligram per liter and dram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.00213642354 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.
Where is the milligram per liter still used today?
The standard unit for drinking-water and environmental contaminant limits worldwide (EPA, WHO)