Mass per volume density.
Drams per Liter to Picograms per Liter Converter — dr/L to pg/L
Convert Dram per Liter (dr/L) to Picogram per Liter (pg/L) using the exact conversion factor (1 dram per liter = 1.771845e+12 picogram per liter). See the formula, worked examples, and conversion table.
Drams per Liter to Picograms 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 1.771845195 / 1e-12.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams per Liter to Picograms per Liter
Dram per Liter and Picogram 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
picograms per liter = drams per liter × 1.771845e+12
This factor comes from each unit's defined relationship to the category's base unit: 1 dram per liter equals 1.77184519531 base units, and 1 picogram per liter equals 1e-12 base units, so dividing one by the other gives the direct dram per liter-to-picogram per liter factor of 1.771845e+12.
Simple example
1 dr/L × 1.771845e+12 = 1.771845e+12 pg/L
1 dram per liter = 1.771845e+12 picograms per liter.
Real-world example
1,000 dr/L × 1.771845e+12 = 1.771845e+15 pg/L
1,000 drams per liter = 1.771845e+15 picograms per liter.
Conversion table
| Dram per Liter (dr/L) | Picogram per Liter (pg/L) |
|---|---|
| 0.1 dr/L | 177,184,519,500 pg/L |
| 1 dr/L | 1.771845e+12 pg/L |
| 10 dr/L | 1.771845e+13 pg/L |
| 100 dr/L | 1.771845e+14 pg/L |
| 1,000 dr/L | 1.771845e+15 pg/L |
| 10,000 dr/L | 1.771845e+16 pg/L |
Reverse conversion: Picogram per Liter to Dram per Liter
1.771845e+12 pg/L × 5.643834e-13 = 0.9999998898 dr/L
1.771845e+12 picograms per liter = 0.9999998898 drams per liter.
drams per liter = picograms per liter × 5.643834e-13
For a page dedicated to this direction, see Picogram per Liter to Dram per Liter.
Understanding the Dram per Liter (dr/L)
Mass per volume density.
Understanding the Picogram per Liter (pg/L)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many picograms per liter are in 1 dram per liter?
1 dram per liter equals 1.771845e+12 picograms per liter, using the exact defined conversion factor rather than an estimate.
How do I convert dram per liter to picogram per liter?
Multiply the dram per liter value by 1.771845e+12. The converter above does this instantly to whatever precision you set.
How do I convert picogram per liter back to dram per liter?
Use the reverse factor: 1 picogram per liter equals 5.643834e-13 drams per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram per liter?
Dram per Liter (dr/L) is a unit of density.
What is a picogram per liter?
Picogram per Liter (pg/L) is a unit of density.
Is the dram per liter to picogram per liter conversion exact?
Yes. Both dram per liter and picogram per liter are defined by fixed standards rather than physical artifacts, so the factor of 1.771845e+12 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.