Mass per volume density.
Nanograms per Quart to Decagrams per Gallon Converter — ng/qt to dag/gal
Convert Nanogram per Quart (ng/qt) to Decagram per Gallon (dag/gal) using the exact conversion factor (1 nanogram per quart = 4e-10 decagram per gallon). See the formula, worked examples, and conversion table.
Nanograms per Quart to Decagrams 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 1.05668821e-9 / 2.641720524.
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 Decagrams per Gallon
Nanogram per Quart and Decagram 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
decagrams per gallon = nanograms per quart × 4e-10
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 decagram per gallon equals 2.64172052358 base units, so dividing one by the other gives the direct nanogram per quart-to-decagram per gallon factor of 4e-10.
Simple example
1 ng/qt × 4e-10 = 4e-10 dag/gal
1 nanogram per quart = 4e-10 decagrams per gallon.
Real-world example
1,000 ng/qt × 4e-10 = 4e-7 dag/gal
1,000 nanograms per quart = 4e-7 decagrams per gallon.
Conversion table
| Nanogram per Quart (ng/qt) | Decagram per Gallon (dag/gal) |
|---|---|
| 0.1 ng/qt | 4e-11 dag/gal |
| 1 ng/qt | 4e-10 dag/gal |
| 10 ng/qt | 4e-9 dag/gal |
| 100 ng/qt | 4e-8 dag/gal |
| 1,000 ng/qt | 4e-7 dag/gal |
| 10,000 ng/qt | 0.000004 dag/gal |
Reverse conversion: Decagram per Gallon to Nanogram per Quart
4e-10 dag/gal × 2500000000 = 1 ng/qt
4e-10 decagrams per gallon = 1 nanograms per quart.
nanograms per quart = decagrams per gallon × 2500000000
For a page dedicated to this direction, see Decagram per Gallon to Nanogram per Quart.
Understanding the Nanogram per Quart (ng/qt)
Mass per volume density.
Understanding the Decagram per Gallon (dag/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many decagrams per gallon are in 1 nanogram per quart?
1 nanogram per quart equals 4e-10 decagrams per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert nanogram per quart to decagram per gallon?
Multiply the nanogram per quart value by 4e-10. The converter above does this instantly to whatever precision you set.
How do I convert decagram per gallon back to nanogram per quart?
Use the reverse factor: 1 decagram per gallon equals 2,500,000,000 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 decagram per gallon?
Decagram per Gallon (dag/gal) is a unit of density.
Is the nanogram per quart to decagram per gallon conversion exact?
Yes. Both nanogram per quart and decagram per gallon are defined by fixed standards rather than physical artifacts, so the factor of 4e-10 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.