Mass concentration.
Milligrams per Gallon to Micrograms per Microliter Converter — mg/gal to ug/uL
Convert Milligram per Gallon (mg/gal) to Microgram per Microliter (ug/uL) using the exact conversion factor (1 milligram per gallon = 0.0002641721 microgram per microliter). See the formula, worked examples, and conversion table.
Milligrams per Gallon to Micrograms per Microliter 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 0.0002641720524 / 1.
Mass Concentration units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Gallon to Micrograms per Microliter
Milligram per Gallon and Microgram per Microliter 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 microliter = milligrams per gallon × 0.000264172052358
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 microliter equals 1 base unit, so dividing one by the other gives the direct milligram per gallon-to-microgram per microliter factor of 0.000264172052358.
Simple example
1 mg/gal × 0.0002641720524 = 0.0002641721 ug/uL
1 milligram per gallon = 0.0002641721 micrograms per microliter.
Real-world example
100 mg/gal × 0.0002641720524 = 0.0264172052 ug/uL
100 milligrams per gallon = 0.0264172052 micrograms per microliter.
Conversion table
| Milligram per Gallon (mg/gal) | Microgram per Microliter (ug/uL) |
|---|---|
| 0.001 mg/gal | 2.641721e-7 ug/uL |
| 0.01 mg/gal | 0.0000026417 ug/uL |
| 0.1 mg/gal | 0.0000264172 ug/uL |
| 1 mg/gal | 0.0002641721 ug/uL |
| 10 mg/gal | 0.0026417205 ug/uL |
| 100 mg/gal | 0.0264172052 ug/uL |
Reverse conversion: Microgram per Microliter to Milligram per Gallon
0.0002641721 ug/uL × 3785.411784 = 1.00000018 mg/gal
0.0002641721 micrograms per microliter = 1.00000018 milligrams per gallon.
milligrams per gallon = micrograms per microliter × 3785.411784
For a page dedicated to this direction, see Microgram per Microliter to Milligram per Gallon.
Understanding the Milligram per Gallon (mg/gal)
Mass concentration.
Understanding the Microgram per Microliter (ug/uL)
Mass concentration.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per microliter are in 1 milligram per gallon?
1 milligram per gallon equals 0.0002641721 micrograms per microliter, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per gallon to microgram per microliter?
Multiply the milligram per gallon value by 0.0002641720524. The converter above does this instantly to whatever precision you set.
How do I convert microgram per microliter back to milligram per gallon?
Use the reverse factor: 1 microgram per microliter equals 3,785.411784 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 chemistry.
What is a microgram per microliter?
Microgram per Microliter (ug/uL) is a unit of chemistry.
Is the milligram per gallon to microgram per microliter conversion exact?
Yes. Both milligram per gallon and microgram per microliter are defined by fixed standards rather than physical artifacts, so the factor of 0.0002641720524 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.