Mass per volume density.
Milligrams per Gallon to Micrograms per Cup Converter — mg/gal to ug/cup
Convert Milligram per Gallon (mg/gal) to Microgram per Cup (ug/cup) using the exact conversion factor (1 milligram per gallon = 62.5 microgram per cup). See the formula, worked examples, and conversion table.
Milligrams per Gallon to Micrograms 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 0.0002641720524 / 4.22675284e-6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Gallon to Micrograms per Cup
Milligram per Gallon and Microgram 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
micrograms per cup = milligrams per gallon × 62.5
This factor comes from each unit's defined relationship to the category's base unit: 1 milligram per gallon equals 0.000264172052358 base units, and 1 microgram per cup equals 0.00000422675283773 base units, so dividing one by the other gives the direct milligram per gallon-to-microgram per cup factor of 62.5.
Simple example
1 mg/gal × 62.5 = 62.5 ug/cup
1 milligram per gallon = 62.5 micrograms per cup.
Real-world example
1,000 mg/gal × 62.5 = 62,500 ug/cup
1,000 milligrams per gallon = 62,500 micrograms per cup.
Conversion table
| Milligram per Gallon (mg/gal) | Microgram per Cup (ug/cup) |
|---|---|
| 0.1 mg/gal | 6.25 ug/cup |
| 1 mg/gal | 62.5 ug/cup |
| 10 mg/gal | 625 ug/cup |
| 100 mg/gal | 6,250 ug/cup |
| 1,000 mg/gal | 62,500 ug/cup |
| 10,000 mg/gal | 625,000 ug/cup |
Reverse conversion: Microgram per Cup to Milligram per Gallon
62.5 ug/cup × 0.016 = 1 mg/gal
62.5 micrograms per cup = 1 milligrams per gallon.
milligrams per gallon = micrograms per cup × 0.016
For a page dedicated to this direction, see Microgram per Cup to Milligram per Gallon.
Understanding the Milligram per Gallon (mg/gal)
Mass per volume density.
Understanding the Microgram per Cup (ug/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per cup are in 1 milligram per gallon?
1 milligram per gallon equals 62.5 micrograms per cup, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per gallon to microgram per cup?
Multiply the milligram per gallon value by 62.5. The converter above does this instantly to whatever precision you set.
How do I convert microgram per cup back to milligram per gallon?
Use the reverse factor: 1 microgram per cup equals 0.016 milligrams per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a milligram per gallon?
Milligram per Gallon (mg/gal) is a unit of density.
What is a microgram per cup?
Microgram per Cup (ug/cup) is a unit of density.
Is the milligram per gallon to microgram per cup conversion exact?
Yes. Both milligram per gallon and microgram per cup are defined by fixed standards rather than physical artifacts, so the factor of 62.5 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.