Mass concentration.
Micrograms per Gallon to Micrograms per Liter Converter — ug/gal to ug/L
Convert Microgram per Gallon (ug/gal) to Microgram per Liter (ug/L) using the exact conversion factor (1 microgram per gallon = 0.2641720524 microgram per liter). See the formula, worked examples, and conversion table.
Micrograms per Gallon to Micrograms per Liter converter
Converter
Chemistry Converter
Convert concentration, molarity, amount, and laboratory scientific units by compatible family.
Context values
Some unit families need one extra value for a physically accurate result.
Mass concentration.
Result = input x 2.64172052e-7 / 1e-6.
Mass Concentration units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Micrograms per Gallon to Micrograms per Liter
Microgram per Gallon and Microgram per Liter both measure mass concentration — how much of a substance is dissolved or dispersed in a given volume — a core calculation for preparing lab solutions, checking water quality against a regulatory limit, or formulating a pharmaceutical dose. Both are mass concentration units.
Formula
micrograms per liter = micrograms per gallon × 0.264172052358
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 microgram per liter equals 0.000001 base units, so dividing one by the other gives the direct microgram per gallon-to-microgram per liter factor of 0.264172052358.
Simple example
1 ug/gal × 0.2641720524 = 0.2641720524 ug/L
1 microgram per gallon = 0.2641720524 micrograms per liter.
Real-world example
100 ug/gal × 0.2641720524 = 26.41720524 ug/L
100 micrograms per gallon = 26.41720524 micrograms per liter.
Conversion table
| Microgram per Gallon (ug/gal) | Microgram per Liter (ug/L) |
|---|---|
| 0.001 ug/gal | 0.0002641721 ug/L |
| 0.01 ug/gal | 0.0026417205 ug/L |
| 0.1 ug/gal | 0.0264172052 ug/L |
| 1 ug/gal | 0.2641720524 ug/L |
| 10 ug/gal | 2.641720524 ug/L |
| 100 ug/gal | 26.41720524 ug/L |
Reverse conversion: Microgram per Liter to Microgram per Gallon
0.2641720524 ug/L × 3.785411784 = 1 ug/gal
0.2641720524 micrograms per liter = 1 micrograms per gallon.
micrograms per gallon = micrograms per liter × 3.785411784
For a page dedicated to this direction, see Microgram per Liter to Microgram per Gallon.
Understanding the Microgram per Gallon (ug/gal)
Mass concentration.
Understanding the Microgram per Liter (ug/L)
Mass concentration.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per liter are in 1 microgram per gallon?
1 microgram per gallon equals 0.2641720524 micrograms per liter, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per gallon to microgram per liter?
Multiply the microgram per gallon value by 0.2641720524. The converter above does this instantly to whatever precision you set.
How do I convert microgram per liter back to microgram per gallon?
Use the reverse factor: 1 microgram per liter equals 3.785411784 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 chemistry.
What is a microgram per liter?
Microgram per Liter (ug/L) is a unit of chemistry.
Is the microgram per gallon to microgram per liter conversion exact?
Yes. Both microgram per gallon and microgram per liter are defined by fixed standards rather than physical artifacts, so the factor of 0.2641720524 used above is exact to as many digits as you choose to display.
What's the difference between mass concentration and molarity?
Mass concentration expresses how much mass of a substance is present per unit volume (for example, grams per liter). Molarity expresses the amount in moles per liter instead, which accounts for the substance's molecular weight. This category converts mass-concentration units.