Milligram per Gallon (mg/gal) expresses mass in milligram per unit volume in gallon, found by dividing a mass value by a volume value.
Milligram per Gallon to Microgram per Liter
Convert milligram per gallon (mg/gal) to microgram per liter (ug/L) instantly with formula, conversion table, and FAQ.
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Convert milligram per gallon (mg/gal) to microgram per liter (ug/L) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Microgram per Liter (ug/L) expresses mass in microgram per unit volume in liter, found by dividing a mass value by a volume value.
ug/L = mg/gal × 264.172052
Results update instantly for Milligram per Gallon to Microgram per Liter conversions.
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Formula
ug/L = mg/gal × 264.172052
mg/gal = ug/L × 0.003785
Conversion table
| 1 mg/gal | 264.172052 ug/L |
| 5 mg/gal | 1320.860262 ug/L |
| 10 mg/gal | 2641.720524 ug/L |
| 20 mg/gal | 5283.441047 ug/L |
| 50 mg/gal | 13208.602618 ug/L |
| 100 mg/gal | 26417.205236 ug/L |
| 500 mg/gal | 132086.026179 ug/L |
| 1000 mg/gal | 264172.052358 ug/L |
Related conversions
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How the formula works
Both milligram per gallon and microgram per liter measure the same physical quantity (mass per unit volume), so converting between them is a single multiplication. Multiply a value in milligram per gallon by 264.172052 to get microgram per liter. To reverse the conversion, multiply a microgram per liter value by 0.003785 to get back to milligram per gallon.
Frequently asked questions
What is Milligram per Gallon (mg/gal)?
Milligram per Gallon (mg/gal) expresses mass in milligram per unit volume in gallon, found by dividing a mass value by a volume value.
What is Microgram per Liter (ug/L)?
Microgram per Liter (ug/L) expresses mass in microgram per unit volume in liter, found by dividing a mass value by a volume value.
How do I convert milligram per gallon to microgram per liter?
Multiply the milligram per gallon value by 264.172052 to get the equivalent in microgram per liter. For example, 5 mg/gal × 264.172052 = 1320.860262 ug/L.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 264.172052 is an exact, non-rounded value.
Can I convert microgram per liter back to milligram per gallon?
Yes. Divide the microgram per liter value by 264.172052, or multiply it by 0.003785, to get milligram per gallon.
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About converting milligram per gallon to microgram per liter
Milligram per Gallon (mg/gal) expresses mass in milligram per unit volume in gallon, found by dividing a mass value by a volume value. Microgram per Liter (ug/L) expresses mass in microgram per unit volume in liter, found by dividing a mass value by a volume value.
Use this calculator to move between milligram per gallon and microgram per liter accurately for science, engineering, manufacturing, or everyday density calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.