Mass per volume density.
Grams per Fluid ounce to Milligrams per Liter Converter — g/fl oz to mg/L
Convert Gram per Fluid ounce (g/fl oz) to Milligram per Liter (mg/L) using the exact conversion factor (1 gram per fluid ounce = 33,814.0227 milligram per liter). See the formula, worked examples, conversion table, and common uses.
Grams per Fluid ounce 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 33.8140227 / 0.001.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Fluid ounce to Milligrams per Liter
Gram per Fluid ounce 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 = grams per fluid ounce × 33814.0227018
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per fluid ounce equals 33.8140227018 base units, and 1 milligram per liter equals 0.001 base units, so dividing one by the other gives the direct gram per fluid ounce-to-milligram per liter factor of 33814.0227018.
Simple example
1 g/fl oz × 33814.0227 = 33,814.0227 mg/L
1 gram per fluid ounce = 33,814.0227 milligrams per liter.
Real-world example
1,000 g/fl oz × 33814.0227 = 33,814,022.7 mg/L
1,000 grams per fluid ounce = 33,814,022.7 milligrams per liter.
Conversion table
| Gram per Fluid ounce (g/fl oz) | Milligram per Liter (mg/L) |
|---|---|
| 0.1 g/fl oz | 3,381.40227 mg/L |
| 1 g/fl oz | 33,814.0227 mg/L |
| 10 g/fl oz | 338,140.227 mg/L |
| 100 g/fl oz | 3,381,402.27 mg/L |
| 1,000 g/fl oz | 33,814,022.7 mg/L |
| 10,000 g/fl oz | 338,140,227 mg/L |
Reverse conversion: Milligram per Liter to Gram per Fluid ounce
1 mg/L × 0.00002957352956 = 0.0000295735 g/fl oz
1 milligram per liter = 0.0000295735 grams per fluid ounce.
grams per fluid ounce = milligrams per liter × 0.0000295735295625
For a page dedicated to this direction, see Milligram per Liter to Gram per Fluid ounce.
Understanding the Gram per Fluid ounce (g/fl oz)
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 gram per fluid ounce?
1 gram per fluid ounce equals 33,814.0227 milligrams per liter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per fluid ounce to milligram per liter?
Multiply the gram per fluid ounce value by 33814.0227. The converter above does this instantly to whatever precision you set.
How do I convert milligram per liter back to gram per fluid ounce?
Use the reverse factor: 1 milligram per liter equals 0.0000295735 grams per fluid ounce. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per fluid ounce?
Gram per Fluid ounce (g/fl oz) 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 gram per fluid ounce to milligram per liter conversion exact?
Yes. Both gram per fluid ounce and milligram per liter are defined by fixed standards rather than physical artifacts, so the factor of 33814.0227 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.