Mass concentration.
Milligrams per Gallon to Milligrams per Microliter Converter — mg/gal to mg/uL
Convert Milligram per Gallon (mg/gal) to Milligram per Microliter (mg/uL) using the exact conversion factor (1 milligram per gallon = 2.641721e-7 milligram per microliter). See the formula, worked examples, and conversion table.
Milligrams per Gallon to Milligrams 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 / 1000.
Mass Concentration units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Milligrams per Gallon to Milligrams per Microliter
Milligram per Gallon and Milligram 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
milligrams per microliter = milligrams per gallon × 2.641721e-7
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 milligram per microliter equals 1000 base units, so dividing one by the other gives the direct milligram per gallon-to-milligram per microliter factor of 2.641721e-7.
Simple example
1 mg/gal × 2.641721e-7 = 2.641721e-7 mg/uL
1 milligram per gallon = 2.641721e-7 milligrams per microliter.
Real-world example
100 mg/gal × 2.641721e-7 = 0.0000264172 mg/uL
100 milligrams per gallon = 0.0000264172 milligrams per microliter.
Conversion table
| Milligram per Gallon (mg/gal) | Milligram per Microliter (mg/uL) |
|---|---|
| 0.001 mg/gal | 2.641721e-10 mg/uL |
| 0.01 mg/gal | 2.641721e-9 mg/uL |
| 0.1 mg/gal | 2.641721e-8 mg/uL |
| 1 mg/gal | 2.641721e-7 mg/uL |
| 10 mg/gal | 0.0000026417 mg/uL |
| 100 mg/gal | 0.0000264172 mg/uL |
Reverse conversion: Milligram per Microliter to Milligram per Gallon
2.641721e-7 mg/uL × 3785411.784 = 1.00000018 mg/gal
2.641721e-7 milligrams per microliter = 1.00000018 milligrams per gallon.
milligrams per gallon = milligrams per microliter × 3785411.784
For a page dedicated to this direction, see Milligram per Microliter to Milligram per Gallon.
Understanding the Milligram per Gallon (mg/gal)
Mass concentration.
Understanding the Milligram per Microliter (mg/uL)
Mass concentration.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams per microliter are in 1 milligram per gallon?
1 milligram per gallon equals 2.641721e-7 milligrams per microliter, using the exact defined conversion factor rather than an estimate.
How do I convert milligram per gallon to milligram per microliter?
Multiply the milligram per gallon value by 2.641721e-7. The converter above does this instantly to whatever precision you set.
How do I convert milligram per microliter back to milligram per gallon?
Use the reverse factor: 1 milligram per microliter equals 3,785,411.784 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 milligram per microliter?
Milligram per Microliter (mg/uL) is a unit of chemistry.
Is the milligram per gallon to milligram per microliter conversion exact?
Yes. Both milligram per gallon and milligram per microliter are defined by fixed standards rather than physical artifacts, so the factor of 2.641721e-7 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.