Mass concentration.
Grams per Gallon to Micrograms per Milliliter Converter — g/gal to ug/mL
Convert Gram per Gallon (g/gal) to Microgram per Milliliter (ug/mL) using the exact conversion factor (1 gram per gallon = 264.1720524 microgram per milliliter). See the formula, worked examples, and conversion table.
Grams per Gallon to Micrograms per Milliliter 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 0.2641720524 / 0.001.
Mass Concentration units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Grams per Gallon to Micrograms per Milliliter
Gram per Gallon and Microgram per Milliliter 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 milliliter = grams per gallon × 264.172052358
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per gallon equals 0.264172052358 base units, and 1 microgram per milliliter equals 0.001 base units, so dividing one by the other gives the direct gram per gallon-to-microgram per milliliter factor of 264.172052358.
Simple example
1 g/gal × 264.1720524 = 264.1720524 ug/mL
1 gram per gallon = 264.1720524 micrograms per milliliter.
Real-world example
100 g/gal × 264.1720524 = 26,417.20524 ug/mL
100 grams per gallon = 26,417.20524 micrograms per milliliter.
Conversion table
| Gram per Gallon (g/gal) | Microgram per Milliliter (ug/mL) |
|---|---|
| 0.001 g/gal | 0.2641720524 ug/mL |
| 0.01 g/gal | 2.641720524 ug/mL |
| 0.1 g/gal | 26.41720524 ug/mL |
| 1 g/gal | 264.1720524 ug/mL |
| 10 g/gal | 2,641.720524 ug/mL |
| 100 g/gal | 26,417.20524 ug/mL |
Reverse conversion: Microgram per Milliliter to Gram per Gallon
264.1720524 ug/mL × 0.003785411784 = 1 g/gal
264.1720524 micrograms per milliliter = 1 grams per gallon.
grams per gallon = micrograms per milliliter × 0.003785411784
For a page dedicated to this direction, see Microgram per Milliliter to Gram per Gallon.
Understanding the Gram per Gallon (g/gal)
Mass concentration.
Understanding the Microgram per Milliliter (ug/mL)
Mass concentration.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per milliliter are in 1 gram per gallon?
1 gram per gallon equals 264.1720524 micrograms per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per gallon to microgram per milliliter?
Multiply the gram per gallon value by 264.1720524. The converter above does this instantly to whatever precision you set.
How do I convert microgram per milliliter back to gram per gallon?
Use the reverse factor: 1 microgram per milliliter equals 0.0037854118 grams per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per gallon?
Gram per Gallon (g/gal) is a unit of chemistry.
What is a microgram per milliliter?
Microgram per Milliliter (ug/mL) is a unit of chemistry.
Is the gram per gallon to microgram per milliliter conversion exact?
Yes. Both gram per gallon and microgram per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 264.1720524 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.