Mass per volume density.
Micrograms per Liter to Nanograms per Quart Converter — ug/L to ng/qt
Convert Microgram per Liter (ug/L) to Nanogram per Quart (ng/qt) using the exact conversion factor (1 microgram per liter = 946.352946 nanogram per quart). See the formula, worked examples, and conversion table.
Micrograms per Liter to Nanograms per Quart 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 1e-6 / 1.05668821e-9.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Micrograms per Liter to Nanograms per Quart
Microgram per Liter and Nanogram per Quart 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 quart = micrograms per liter × 946.352946
This factor comes from each unit's defined relationship to the category's base unit: 1 microgram per liter equals 0.000001 base units, and 1 nanogram per quart equals 1.056688e-9 base units, so dividing one by the other gives the direct microgram per liter-to-nanogram per quart factor of 946.352946.
Simple example
1 ug/L × 946.352946 = 946.352946 ng/qt
1 microgram per liter = 946.352946 nanograms per quart.
Real-world example
1,000 ug/L × 946.352946 = 946,352.946 ng/qt
1,000 micrograms per liter = 946,352.946 nanograms per quart.
Conversion table
| Microgram per Liter (ug/L) | Nanogram per Quart (ng/qt) |
|---|---|
| 0.1 ug/L | 94.6352946 ng/qt |
| 1 ug/L | 946.352946 ng/qt |
| 10 ug/L | 9,463.52946 ng/qt |
| 100 ug/L | 94,635.2946 ng/qt |
| 1,000 ug/L | 946,352.946 ng/qt |
| 10,000 ug/L | 9,463,529.46 ng/qt |
Reverse conversion: Nanogram per Quart to Microgram per Liter
946.352946 ng/qt × 0.001056688209 = 1 ug/L
946.352946 nanograms per quart = 1 micrograms per liter.
micrograms per liter = nanograms per quart × 0.00105668820943
For a page dedicated to this direction, see Nanogram per Quart to Microgram per Liter.
Understanding the Microgram per Liter (ug/L)
Mass per volume density.
Understanding the Nanogram per Quart (ng/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanograms per quart are in 1 microgram per liter?
1 microgram per liter equals 946.352946 nanograms per quart, using the exact defined conversion factor rather than an estimate.
How do I convert microgram per liter to nanogram per quart?
Multiply the microgram per liter value by 946.352946. The converter above does this instantly to whatever precision you set.
How do I convert nanogram per quart back to microgram per liter?
Use the reverse factor: 1 nanogram per quart equals 0.0010566882 micrograms per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a microgram per liter?
Microgram per Liter (ug/L) is a unit of density.
What is a nanogram per quart?
Nanogram per Quart (ng/qt) is a unit of density.
Is the microgram per liter to nanogram per quart conversion exact?
Yes. Both microgram per liter and nanogram per quart are defined by fixed standards rather than physical artifacts, so the factor of 946.352946 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.