Mass per volume density.
Megagrams per Liter to Micrograms per Gallon Converter — Mg/L to ug/gal
Convert Megagram per Liter (Mg/L) to Microgram per Gallon (ug/gal) using the exact conversion factor (1 megagram per liter = 3.785412e+12 microgram per gallon). See the formula, worked examples, and conversion table.
Megagrams per Liter to Micrograms per Gallon 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 1e+6 / 2.64172052e-7.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Megagrams per Liter to Micrograms per Gallon
Megagram per Liter and Microgram per Gallon 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 gallon = megagrams per liter × 3.785412e+12
This factor comes from each unit's defined relationship to the category's base unit: 1 megagram per liter equals 1000000 base units, and 1 microgram per gallon equals 2.641721e-7 base units, so dividing one by the other gives the direct megagram per liter-to-microgram per gallon factor of 3.785412e+12.
Simple example
1 Mg/L × 3.785412e+12 = 3.785412e+12 ug/gal
1 megagram per liter = 3.785412e+12 micrograms per gallon.
Real-world example
1,000 Mg/L × 3.785412e+12 = 3.785412e+15 ug/gal
1,000 megagrams per liter = 3.785412e+15 micrograms per gallon.
Conversion table
| Megagram per Liter (Mg/L) | Microgram per Gallon (ug/gal) |
|---|---|
| 0.1 Mg/L | 378,541,178,400 ug/gal |
| 1 Mg/L | 3.785412e+12 ug/gal |
| 10 Mg/L | 3.785412e+13 ug/gal |
| 100 Mg/L | 3.785412e+14 ug/gal |
| 1,000 Mg/L | 3.785412e+15 ug/gal |
| 10,000 Mg/L | 3.785412e+16 ug/gal |
Reverse conversion: Microgram per Gallon to Megagram per Liter
3.785412e+12 ug/gal × 2.641721e-13 = 1.000000057 Mg/L
3.785412e+12 micrograms per gallon = 1.000000057 megagrams per liter.
megagrams per liter = micrograms per gallon × 2.641721e-13
For a page dedicated to this direction, see Microgram per Gallon to Megagram per Liter.
Understanding the Megagram per Liter (Mg/L)
Mass per volume density.
Understanding the Microgram per Gallon (ug/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per gallon are in 1 megagram per liter?
1 megagram per liter equals 3.785412e+12 micrograms per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert megagram per liter to microgram per gallon?
Multiply the megagram per liter value by 3.785412e+12. The converter above does this instantly to whatever precision you set.
How do I convert microgram per gallon back to megagram per liter?
Use the reverse factor: 1 microgram per gallon equals 2.641721e-13 megagrams per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a megagram per liter?
Megagram per Liter (Mg/L) is a unit of density.
What is a microgram per gallon?
Microgram per Gallon (ug/gal) is a unit of density.
Is the megagram per liter to microgram per gallon conversion exact?
Yes. Both megagram per liter and microgram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 3.785412e+12 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.