Mass per volume density.
Micrograms per Gallon to Milligrams per Cup Converter — ug/gal to mg/cup
Convert Microgram per Gallon (ug/gal) to Milligram per Cup (mg/cup) using the exact conversion factor (1 microgram per gallon = 0.0000625 milligram per cup). See the formula, worked examples, and conversion table.
Micrograms 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 2.64172052e-7 / 0.004226752838.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Micrograms per Gallon to Milligrams per Cup
Microgram 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. Both are mass per volume density units.
Formula
milligrams per cup = micrograms per gallon × 0.0000625
This factor comes from each unit's defined relationship to the category's base unit: 1 microgram per gallon equals 2.641721e-7 base units, and 1 milligram per cup equals 0.00422675283773 base units, so dividing one by the other gives the direct microgram per gallon-to-milligram per cup factor of 0.0000625.
Simple example
1 ug/gal × 0.0000625 = 0.0000625 mg/cup
1 microgram per gallon = 0.0000625 milligrams per cup.
Real-world example
1,000 ug/gal × 0.0000625 = 0.0625 mg/cup
1,000 micrograms per gallon = 0.0625 milligrams per cup.
Conversion table
| Microgram per Gallon (ug/gal) | Milligram per Cup (mg/cup) |
|---|---|
| 0.1 ug/gal | 0.00000625 mg/cup |
| 1 ug/gal | 0.0000625 mg/cup |
| 10 ug/gal | 0.000625 mg/cup |
| 100 ug/gal | 0.00625 mg/cup |
| 1,000 ug/gal | 0.0625 mg/cup |
| 10,000 ug/gal | 0.625 mg/cup |
Reverse conversion: Milligram per Cup to Microgram per Gallon
0.0000625 mg/cup × 16000 = 1 ug/gal
0.0000625 milligrams per cup = 1 micrograms per gallon.
micrograms per gallon = milligrams per cup × 16000
For a page dedicated to this direction, see Milligram per Cup to Microgram per Gallon.
Understanding the Microgram per Gallon (ug/gal)
Mass per volume density.
Understanding the Milligram per Cup (mg/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per cup are in 1 microgram per gallon?
1 microgram per gallon equals 0.0000625 milligrams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per gallon to milligram per cup?
Multiply the microgram per gallon value by 0.0000625. The converter above does this instantly to whatever precision you set.
How do I convert milligram per cup back to microgram per gallon?
Use the reverse factor: 1 milligram per cup equals 16,000 micrograms per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a microgram per gallon?
Microgram per Gallon (ug/gal) is a unit of density.
What is a milligram per cup?
Milligram per Cup (mg/cup) is a unit of density.
Is the microgram per gallon to milligram per cup conversion exact?
Yes. Both microgram per gallon and milligram per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.0000625 used above is exact to as many digits as you choose to display.
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.