Mass per volume density.
Grams per Gallon to Micrograms per Cubic Meter Converter — g/gal to ug/m3
Convert Gram per Gallon (g/gal) to Microgram per Cubic Meter (ug/m3) using the exact conversion factor (1 gram per gallon = 264,172,052.4 microgram per cubic meter). See the formula, worked examples, and conversion table.
Grams per Gallon to Micrograms per Cubic Meter converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 0.2641720524 / 1e-9.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grams per Gallon to Micrograms per Cubic Meter
Gram per Gallon and Microgram per Cubic Meter both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
micrograms per cubic meter = grams per gallon × 264172052.358
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 cubic meter equals 1e-9 base units, so dividing one by the other gives the direct gram per gallon-to-microgram per cubic meter factor of 264172052.358.
Simple example
1 g/gal × 264172052.4 = 264,172,052.4 ug/m3
1 gram per gallon = 264,172,052.4 micrograms per cubic meter.
Real-world example
1,000 g/gal × 264172052.4 = 264,172,052,400 ug/m3
1,000 grams per gallon = 264,172,052,400 micrograms per cubic meter.
Conversion table
| Gram per Gallon (g/gal) | Microgram per Cubic Meter (ug/m3) |
|---|---|
| 0.1 g/gal | 26,417,205.24 ug/m3 |
| 1 g/gal | 264,172,052.4 ug/m3 |
| 10 g/gal | 2,641,720,524 ug/m3 |
| 100 g/gal | 26,417,205,240 ug/m3 |
| 1,000 g/gal | 264,172,052,400 ug/m3 |
| 10,000 g/gal | 2.641721e+12 ug/m3 |
Reverse conversion: Microgram per Cubic Meter to Gram per Gallon
1 ug/m3 × 3.785412e-9 = 3.785412e-9 g/gal
1 microgram per cubic meter = 3.785412e-9 grams per gallon.
grams per gallon = micrograms per cubic meter × 3.785412e-9
For a page dedicated to this direction, see Microgram per Cubic Meter to Gram per Gallon.
Understanding the Gram per Gallon (g/gal)
Mass per volume density.
Understanding the Microgram per Cubic Meter (ug/m3)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per cubic meter are in 1 gram per gallon?
1 gram per gallon equals 264,172,052.4 micrograms per cubic meter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per gallon to microgram per cubic meter?
Multiply the gram per gallon value by 264172052.4. The converter above does this instantly to whatever precision you set.
How do I convert microgram per cubic meter back to gram per gallon?
Use the reverse factor: 1 microgram per cubic meter equals 3.785412e-9 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 density.
What is a microgram per cubic meter?
Microgram per Cubic Meter (ug/m3) is a unit of density.
Is the gram per gallon to microgram per cubic meter conversion exact?
Yes. Both gram per gallon and microgram per cubic meter are defined by fixed standards rather than physical artifacts, so the factor of 264172052.4 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.