Mass per volume density.
Drams per Liter to Milligrams per Liter Converter — dr/L to mg/L
Convert Dram per Liter (dr/L) to Milligram per Liter (mg/L) using the exact conversion factor (1 dram per liter = 1,771.845195 milligram per liter). See the formula, worked examples, conversion table, and common uses.
Drams per Liter 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 1.771845195 / 0.001.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Liter to Milligrams per Liter
Dram per Liter 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 = drams per liter × 1771.84519531
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per liter equals 1.77184519531 base units, and 1 milligram per liter equals 0.001 base units, so dividing one by the other gives the direct dram per liter-to-milligram per liter factor of 1771.84519531.
Simple example
1 dr/L × 1771.845195 = 1,771.845195 mg/L
1 dram per liter = 1,771.845195 milligrams per liter.
Real-world example
1,000 dr/L × 1771.845195 = 1,771,845.195 mg/L
1,000 drams per liter = 1,771,845.195 milligrams per liter.
Conversion table
| Dram per Liter (dr/L) | Milligram per Liter (mg/L) |
|---|---|
| 0.1 dr/L | 177.1845195 mg/L |
| 1 dr/L | 1,771.845195 mg/L |
| 10 dr/L | 17,718.45195 mg/L |
| 100 dr/L | 177,184.5195 mg/L |
| 1,000 dr/L | 1,771,845.195 mg/L |
| 10,000 dr/L | 17,718,451.95 mg/L |
Reverse conversion: Milligram per Liter to Dram per Liter
1 mg/L × 0.0005643833912 = 0.0005643834 dr/L
1 milligram per liter = 0.0005643834 drams per liter.
drams per liter = milligrams per liter × 0.000564383391193
For a page dedicated to this direction, see Milligram per Liter to Dram per Liter.
Understanding the Dram per Liter (dr/L)
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 dram per liter?
1 dram per liter equals 1,771.845195 milligrams per liter, using the exact defined conversion factor rather than an estimate.
How do I convert dram per liter to milligram per liter?
Multiply the dram per liter value by 1771.845195. The converter above does this instantly to whatever precision you set.
How do I convert milligram per liter back to dram per liter?
Use the reverse factor: 1 milligram per liter equals 0.0005643834 drams per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per liter?
Dram per Liter (dr/L) 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 dram per liter to milligram per liter conversion exact?
Yes. Both dram per liter and milligram per liter are defined by fixed standards rather than physical artifacts, so the factor of 1771.845195 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.