Mass per volume density.
Micrograms per Cubic yard to Nanograms per Gallon Converter — ug/yd3 to ng/gal
Convert Microgram per Cubic yard (ug/yd3) to Nanogram per Gallon (ng/gal) using the exact conversion factor (1 microgram per cubic yard = 4.951131687 nanogram per gallon). See the formula, worked examples, and conversion table.
Micrograms per Cubic yard to Nanograms per Gallon 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 1.30795062e-9 / 2.64172052e-10.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Micrograms per Cubic yard to Nanograms per Gallon
Microgram per Cubic yard and Nanogram per Gallon 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
nanograms per gallon = micrograms per cubic yard × 4.95113168724
This factor comes from each unit's defined relationship to the category's base unit: 1 microgram per cubic yard equals 1.307951e-9 base units, and 1 nanogram per gallon equals 2.641721e-10 base units, so dividing one by the other gives the direct microgram per cubic yard-to-nanogram per gallon factor of 4.95113168724.
Simple example
1 ug/yd3 × 4.951131687 = 4.951131687 ng/gal
1 microgram per cubic yard = 4.951131687 nanograms per gallon.
Real-world example
1,000 ug/yd3 × 4.951131687 = 4,951.131687 ng/gal
1,000 micrograms per cubic yard = 4,951.131687 nanograms per gallon.
Conversion table
| Microgram per Cubic yard (ug/yd3) | Nanogram per Gallon (ng/gal) |
|---|---|
| 0.1 ug/yd3 | 0.4951131687 ng/gal |
| 1 ug/yd3 | 4.951131687 ng/gal |
| 10 ug/yd3 | 49.51131687 ng/gal |
| 100 ug/yd3 | 495.1131687 ng/gal |
| 1,000 ug/yd3 | 4,951.131687 ng/gal |
| 10,000 ug/yd3 | 49,511.31687 ng/gal |
Reverse conversion: Nanogram per Gallon to Microgram per Cubic yard
4.951131687 ng/gal × 0.201974026 = 1 ug/yd3
4.951131687 nanograms per gallon = 1 micrograms per cubic yard.
micrograms per cubic yard = nanograms per gallon × 0.201974025974
For a page dedicated to this direction, see Nanogram per Gallon to Microgram per Cubic yard.
Understanding the Microgram per Cubic yard (ug/yd3)
Mass per volume density.
Understanding the Nanogram per Gallon (ng/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanograms per gallon are in 1 microgram per cubic yard?
1 microgram per cubic yard equals 4.951131687 nanograms per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per cubic yard to nanogram per gallon?
Multiply the microgram per cubic yard value by 4.951131687. The converter above does this instantly to whatever precision you set.
How do I convert nanogram per gallon back to microgram per cubic yard?
Use the reverse factor: 1 nanogram per gallon equals 0.201974026 micrograms per cubic yard. You can also use the swap control in the converter above to flip the direction instantly.
What is a microgram per cubic yard?
Microgram per Cubic yard (ug/yd3) is a unit of density.
What is a nanogram per gallon?
Nanogram per Gallon (ng/gal) is a unit of density.
Is the microgram per cubic yard to nanogram per gallon conversion exact?
Yes. Both microgram per cubic yard and nanogram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 4.951131687 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.