Mass per volume density.
Nanograms per Quart to Micrograms per Liter Converter — ng/qt to ug/L
Convert Nanogram per Quart (ng/qt) to Microgram per Liter (ug/L) using the exact conversion factor (1 nanogram per quart = 0.0010566882 microgram per liter). See the formula, worked examples, and conversion table.
Nanograms per Quart to Micrograms per Liter 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 1.05668821e-9 / 1e-6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Nanograms per Quart to Micrograms per Liter
Nanogram per Quart and Microgram per Liter 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 liter = nanograms per quart × 0.00105668820943
This factor comes from each unit's defined relationship to the category's base unit: 1 nanogram per quart equals 1.056688e-9 base units, and 1 microgram per liter equals 0.000001 base units, so dividing one by the other gives the direct nanogram per quart-to-microgram per liter factor of 0.00105668820943.
Simple example
1 ng/qt × 0.001056688209 = 0.0010566882 ug/L
1 nanogram per quart = 0.0010566882 micrograms per liter.
Real-world example
1,000 ng/qt × 0.001056688209 = 1.056688209 ug/L
1,000 nanograms per quart = 1.056688209 micrograms per liter.
Conversion table
| Nanogram per Quart (ng/qt) | Microgram per Liter (ug/L) |
|---|---|
| 0.1 ng/qt | 0.0001056688 ug/L |
| 1 ng/qt | 0.0010566882 ug/L |
| 10 ng/qt | 0.0105668821 ug/L |
| 100 ng/qt | 0.1056688209 ug/L |
| 1,000 ng/qt | 1.056688209 ug/L |
| 10,000 ng/qt | 10.56688209 ug/L |
Reverse conversion: Microgram per Liter to Nanogram per Quart
0.0010566882 ug/L × 946.352946 = 0.9999999911 ng/qt
0.0010566882 micrograms per liter = 0.9999999911 nanograms per quart.
nanograms per quart = micrograms per liter × 946.352946
For a page dedicated to this direction, see Microgram per Liter to Nanogram per Quart.
Understanding the Nanogram per Quart (ng/qt)
Mass per volume density.
Understanding the Microgram per Liter (ug/L)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms per liter are in 1 nanogram per quart?
1 nanogram per quart equals 0.0010566882 micrograms per liter, using the exact defined conversion factor rather than an estimate.
How do I convert nanogram per quart to microgram per liter?
Multiply the nanogram per quart value by 0.001056688209. The converter above does this instantly to whatever precision you set.
How do I convert microgram per liter back to nanogram per quart?
Use the reverse factor: 1 microgram per liter equals 946.352946 nanograms per quart. You can also use the swap control in the converter above to flip the direction instantly.
What is a nanogram per quart?
Nanogram per Quart (ng/qt) is a unit of density.
What is a microgram per liter?
Microgram per Liter (ug/L) is a unit of density.
Is the nanogram per quart to microgram per liter conversion exact?
Yes. Both nanogram per quart and microgram per liter are defined by fixed standards rather than physical artifacts, so the factor of 0.001056688209 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.