Mass per volume density.
Picograms per Liter to Kilograms per Liter Converter — pg/L to kg/L
Convert Picogram per Liter (pg/L) to Kilogram per Liter (kg/L) using the exact conversion factor (1 picogram per liter = 1e-15 kilogram per liter). See the formula, worked examples, conversion table, and common uses.
Picograms per Liter to Kilograms 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 1e-12 / 1000.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Picograms per Liter to Kilograms per Liter
Picogram per Liter and Kilogram 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
kilograms per liter = picograms per liter × 1e-15
This factor comes from each unit's defined relationship to the category's base unit: 1 picogram per liter equals 1e-12 base units, and 1 kilogram per liter equals 1000 base units, so dividing one by the other gives the direct picogram per liter-to-kilogram per liter factor of 1e-15.
Simple example
1 pg/L × 1e-15 = 1e-15 kg/L
1 picogram per liter = 1e-15 kilograms per liter.
Real-world example
1,000 pg/L × 1e-15 = 1e-12 kg/L
1,000 picograms per liter = 1e-12 kilograms per liter.
Conversion table
| Picogram per Liter (pg/L) | Kilogram per Liter (kg/L) |
|---|---|
| 0.1 pg/L | 1e-16 kg/L |
| 1 pg/L | 1e-15 kg/L |
| 10 pg/L | 1e-14 kg/L |
| 100 pg/L | 1e-13 kg/L |
| 1,000 pg/L | 1e-12 kg/L |
| 10,000 pg/L | 1e-11 kg/L |
Reverse conversion: Kilogram per Liter to Picogram per Liter
1e-15 kg/L × 1e+15 = 1 pg/L
1e-15 kilograms per liter = 1 picogram per liter.
picograms per liter = kilograms per liter × 1e+15
For a page dedicated to this direction, see Kilogram per Liter to Picogram per Liter.
Understanding the Picogram per Liter (pg/L)
Mass per volume density.
Understanding the Kilogram per Liter
Kilogram per Liter (kg/L) measures density. Numerically identical to grams per milliliter and to specific gravity for water-based substances, since water has a density of very nearly 1 kg/L. It is classified as a metric derived density unit.
Where it's used: Widely used internationally for fuel, oil, and food-industry density specifications
Uses of the Kilogram per Liter today
- Fuel and petroleum density specifications (diesel is roughly 0.85 kg/L, gasoline roughly 0.74 kg/L)
- Food and beverage industry quality control
- Quick density comparisons against water, since water is almost exactly 1 kg/L
Kilogram per Liter — sources
- BIPM SI Brochure — Litre and kilogram as accepted SI and SI-derived units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per liter are in 1 picogram per liter?
1 picogram per liter equals 1e-15 kilograms per liter, using the exact defined conversion factor rather than an estimate.
How do I convert picogram per liter to kilogram per liter?
Multiply the picogram per liter value by 1e-15. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per liter back to picogram per liter?
Use the reverse factor: 1 kilogram per liter equals 1e+15 picograms per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a picogram per liter?
Picogram per Liter (pg/L) is a unit of density.
What is a kilogram per liter?
Kilogram per Liter (kg/L) measures density. Numerically identical to grams per milliliter and to specific gravity for water-based substances, since water has a density of very nearly 1 kg/L. It is classified as a metric derived density unit.
Is the picogram per liter to kilogram per liter conversion exact?
Yes. Both picogram per liter and kilogram per liter are defined by fixed standards rather than physical artifacts, so the factor of 1e-15 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.