Mass per volume density.
Nanograms per Quart to Decigrams per Pint Converter — ng/qt to dg/pt
Convert Nanogram per Quart (ng/qt) to Decigram per Pint (dg/pt) using the exact conversion factor (1 nanogram per quart = 5e-9 decigram per pint). See the formula, worked examples, and conversion table.
Nanograms per Quart to Decigrams per Pint 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 / 0.2113376419.
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 Decigrams per Pint
Nanogram per Quart and Decigram per Pint 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
decigrams per pint = nanograms per quart × 5e-9
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 decigram per pint equals 0.211337641887 base units, so dividing one by the other gives the direct nanogram per quart-to-decigram per pint factor of 5e-9.
Simple example
1 ng/qt × 5e-9 = 5e-9 dg/pt
1 nanogram per quart = 5e-9 decigrams per pint.
Real-world example
1,000 ng/qt × 5e-9 = 0.000005 dg/pt
1,000 nanograms per quart = 0.000005 decigrams per pint.
Conversion table
| Nanogram per Quart (ng/qt) | Decigram per Pint (dg/pt) |
|---|---|
| 0.1 ng/qt | 5e-10 dg/pt |
| 1 ng/qt | 5e-9 dg/pt |
| 10 ng/qt | 5e-8 dg/pt |
| 100 ng/qt | 5e-7 dg/pt |
| 1,000 ng/qt | 0.000005 dg/pt |
| 10,000 ng/qt | 0.00005 dg/pt |
Reverse conversion: Decigram per Pint to Nanogram per Quart
5e-9 dg/pt × 200000000 = 1 ng/qt
5e-9 decigrams per pint = 1 nanograms per quart.
nanograms per quart = decigrams per pint × 200000000
For a page dedicated to this direction, see Decigram per Pint to Nanogram per Quart.
Understanding the Nanogram per Quart (ng/qt)
Mass per volume density.
Understanding the Decigram per Pint (dg/pt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many decigrams per pint are in 1 nanogram per quart?
1 nanogram per quart equals 5e-9 decigrams per pint, using the exact defined conversion factor rather than an estimate.
How do I convert nanogram per quart to decigram per pint?
Multiply the nanogram per quart value by 5e-9. The converter above does this instantly to whatever precision you set.
How do I convert decigram per pint back to nanogram per quart?
Use the reverse factor: 1 decigram per pint equals 200,000,000 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 decigram per pint?
Decigram per Pint (dg/pt) is a unit of density.
Is the nanogram per quart to decigram per pint conversion exact?
Yes. Both nanogram per quart and decigram per pint are defined by fixed standards rather than physical artifacts, so the factor of 5e-9 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.