Mass concentration.
Milligrams per Liter to Ounces per Gallon Converter — mg/L to oz/gal
Convert Milligram per Liter (mg/L) to Ounce per Gallon (oz/gal) using the exact conversion factor (1 milligram per liter = 0.0001335265 ounce per gallon). See the formula, worked examples, conversion table, unit comparison, and common uses.
Milligrams per Liter to Ounces per Gallon converter
Converter
Chemistry Converter
Convert concentration, molarity, amount, and laboratory scientific units by compatible family.
Context values
Some unit families need one extra value for a physically accurate result.
Mass concentration.
Result = input x 0.001 / 7.489151707.
Mass Concentration units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Liter to Ounces per Gallon
Milligram per Liter and Ounce per Gallon both measure mass concentration — how much of a substance is dissolved or dispersed in a given volume — a core calculation for preparing lab solutions, checking water quality against a regulatory limit, or formulating a pharmaceutical dose. Milligram per Liter is typically associated with the standard unit for drinking-water and environmental contaminant limits worldwide (EPA, WHO), while Ounce per Gallon is typically associated with united States.
Formula
ounces per gallon = milligrams per liter × 0.000133526471232
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 ounce per gallon equals 7.48915170731 base units, so dividing one by the other gives the direct milligram per liter-to-ounce per gallon factor of 0.000133526471232.
Simple example
1 mg/L × 0.0001335264712 = 0.0001335265 oz/gal
1 milligram per liter = 0.0001335265 ounces per gallon.
Real-world example
100 mg/L × 0.0001335264712 = 0.0133526471 oz/gal
100 milligrams per liter = 0.0133526471 ounces per gallon.
Conversion table
| Milligram per Liter (mg/L) | Ounce per Gallon (oz/gal) |
|---|---|
| 0.001 mg/L | 1.335265e-7 oz/gal |
| 0.01 mg/L | 0.0000013353 oz/gal |
| 0.1 mg/L | 0.0000133526 oz/gal |
| 1 mg/L | 0.0001335265 oz/gal |
| 10 mg/L | 0.0013352647 oz/gal |
| 100 mg/L | 0.0133526471 oz/gal |
Reverse conversion: Ounce per Gallon to Milligram per Liter
0.0001335265 oz/gal × 7489.151707 = 1.000000215 mg/L
0.0001335265 ounces per gallon = 1.000000215 milligrams per liter.
milligrams per liter = ounces per gallon × 7489.15170731
For a page dedicated to this direction, see Ounce per Gallon to Milligram per Liter.
Milligram per Liter vs. Ounce per Gallon
| Aspect | Milligram per Liter | Ounce per Gallon |
|---|---|---|
| Family | metric derived concentration unit | US customary concentration unit |
| Typical use | Drinking-water quality standards and contaminant limits | Used to express dilution rates on many US pesticide, herbicide, and household cleaning product labels, which commonly specify a number of fluid ounces of concentrate per gallon of water |
| Where it's used | The standard unit for drinking-water and environmental contaminant limits worldwide (EPA, WHO) | United States |
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 Ounce per Gallon
Ounce per Gallon (oz/gal) measures concentration (dilution rate). A US customary way to express how much concentrate is mixed into each gallon of a diluted solution. It is classified as a US customary concentration unit.
Where it's used: United States
Uses of the Ounce per Gallon today
- Used to express dilution rates on many US pesticide, herbicide, and household cleaning product labels, which commonly specify a number of fluid ounces of concentrate per gallon of water
Milligram per Liter — sources
- US EPA — National Primary Drinking Water Regulations — Contaminant limits are set and reported in mg/L.
Ounce per Gallon — sources
- US product-label dilution conventions (pesticide/herbicide industry guides) — Fluid ounces of concentrate per gallon is a widely used label format for US spray and cleaning product dilution instructions.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ounces per gallon are in 1 milligram per liter?
1 milligram per liter equals 0.0001335265 ounces per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per liter to ounce per gallon?
Multiply the milligram per liter value by 0.0001335264712. The converter above does this instantly to whatever precision you set.
How do I convert ounce per gallon back to milligram per liter?
Use the reverse factor: 1 ounce per gallon equals 7,489.151707 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 ounce per gallon?
Ounce per Gallon (oz/gal) measures concentration (dilution rate). A US customary way to express how much concentrate is mixed into each gallon of a diluted solution. It is classified as a US customary concentration unit.
Is the milligram per liter to ounce per gallon conversion exact?
Yes. Both milligram per liter and ounce per gallon are defined by fixed standards rather than physical artifacts, so the factor of 0.0001335264712 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)