Mass per volume density.
Drams per Pint to Nanograms per Teaspoon Converter — dr/pt to ng/tsp
Convert Dram per Pint (dr/pt) to Nanogram per Teaspoon (ng/tsp) using the exact conversion factor (1 dram per pint = 18,456,720.78 nanogram per teaspoon). See the formula, worked examples, and conversion table.
Drams per Pint to Nanograms per Teaspoon 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 3.744575854 / 2.02884136e-7.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Pint to Nanograms per Teaspoon
Dram per Pint and Nanogram per Teaspoon 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 teaspoon = drams per pint × 18456720.7845
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per pint equals 3.74457585365 base units, and 1 nanogram per teaspoon equals 2.028841e-7 base units, so dividing one by the other gives the direct dram per pint-to-nanogram per teaspoon factor of 18456720.7845.
Simple example
1 dr/pt × 18456720.78 = 18,456,720.78 ng/tsp
1 dram per pint = 18,456,720.78 nanograms per teaspoon.
Real-world example
1,000 dr/pt × 18456720.78 = 18,456,720,780 ng/tsp
1,000 drams per pint = 18,456,720,780 nanograms per teaspoon.
Conversion table
| Dram per Pint (dr/pt) | Nanogram per Teaspoon (ng/tsp) |
|---|---|
| 0.1 dr/pt | 1,845,672.078 ng/tsp |
| 1 dr/pt | 18,456,720.78 ng/tsp |
| 10 dr/pt | 184,567,207.8 ng/tsp |
| 100 dr/pt | 1,845,672,078 ng/tsp |
| 1,000 dr/pt | 18,456,720,780 ng/tsp |
| 10,000 dr/pt | 184,567,207,800 ng/tsp |
Reverse conversion: Nanogram per Teaspoon to Dram per Pint
1 ng/tsp × 5.418081e-8 = 5.418081e-8 dr/pt
1 nanogram per teaspoon = 5.418081e-8 drams per pint.
drams per pint = nanograms per teaspoon × 5.418081e-8
For a page dedicated to this direction, see Nanogram per Teaspoon to Dram per Pint.
Understanding the Dram per Pint (dr/pt)
Mass per volume density.
Understanding the Nanogram per Teaspoon (ng/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanograms per teaspoon are in 1 dram per pint?
1 dram per pint equals 18,456,720.78 nanograms per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert dram per pint to nanogram per teaspoon?
Multiply the dram per pint value by 18456720.78. The converter above does this instantly to whatever precision you set.
How do I convert nanogram per teaspoon back to dram per pint?
Use the reverse factor: 1 nanogram per teaspoon equals 5.418081e-8 drams per pint. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per pint?
Dram per Pint (dr/pt) is a unit of density.
What is a nanogram per teaspoon?
Nanogram per Teaspoon (ng/tsp) is a unit of density.
Is the dram per pint to nanogram per teaspoon conversion exact?
Yes. Both dram per pint and nanogram per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 18456720.78 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.