Mass per volume density.
Ounces per Gallon to Milligrams per Cup Converter — oz/gal to mg/cup
Convert Ounce per Gallon (oz/gal) to Milligram per Cup (mg/cup) using the exact conversion factor (1 ounce per gallon = 1,771.845195 milligram per cup). See the formula, worked examples, conversion table, and common uses.
Ounces per Gallon to Milligrams per Cup 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 7.489151707 / 0.004226752838.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Gallon to Milligrams per Cup
Ounce per Gallon and Milligram per Cup 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. Ounce per Gallon is most often used for 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.
Formula
milligrams per cup = ounces per gallon × 1771.84519531
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per gallon equals 7.48915170731 base units, and 1 milligram per cup equals 0.00422675283773 base units, so dividing one by the other gives the direct ounce per gallon-to-milligram per cup factor of 1771.84519531.
Simple example
1 oz/gal × 1771.845195 = 1,771.845195 mg/cup
1 ounce per gallon = 1,771.845195 milligrams per cup.
Real-world example
1,000 oz/gal × 1771.845195 = 1,771,845.195 mg/cup
1,000 ounces per gallon = 1,771,845.195 milligrams per cup.
Conversion table
| Ounce per Gallon (oz/gal) | Milligram per Cup (mg/cup) |
|---|---|
| 0.1 oz/gal | 177.1845195 mg/cup |
| 1 oz/gal | 1,771.845195 mg/cup |
| 10 oz/gal | 17,718.45195 mg/cup |
| 100 oz/gal | 177,184.5195 mg/cup |
| 1,000 oz/gal | 1,771,845.195 mg/cup |
| 10,000 oz/gal | 17,718,451.95 mg/cup |
Reverse conversion: Milligram per Cup to Ounce per Gallon
1 mg/cup × 0.0005643833912 = 0.0005643834 oz/gal
1 milligram per cup = 0.0005643834 ounces per gallon.
ounces per gallon = milligrams per cup × 0.000564383391193
For a page dedicated to this direction, see Milligram per Cup to Ounce per Gallon.
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
Understanding the Milligram per Cup (mg/cup)
Mass per volume density.
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 milligrams per cup are in 1 ounce per gallon?
1 ounce per gallon equals 1,771.845195 milligrams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per gallon to milligram per cup?
Multiply the ounce per gallon value by 1771.845195. The converter above does this instantly to whatever precision you set.
How do I convert milligram per cup back to ounce per gallon?
Use the reverse factor: 1 milligram per cup equals 0.0005643834 ounces per gallon. You can also use the swap control in the converter above to flip the direction instantly.
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.
What is a milligram per cup?
Milligram per Cup (mg/cup) is a unit of density.
Is the ounce per gallon to milligram per cup conversion exact?
Yes. Both ounce per gallon and milligram per cup 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.
Where is the ounce per gallon still used today?
United States
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.