Mass per volume density.
Kilograms per Milliliter to Nanograms per Liter Converter — kg/mL to ng/L
Convert Kilogram per Milliliter (kg/mL) to Nanogram per Liter (ng/L) using the exact conversion factor (1 kilogram per milliliter = 1e+15 nanogram per liter). See the formula, worked examples, and conversion table.
Kilograms per Milliliter to Nanograms 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+6 / 1e-9.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilograms per Milliliter to Nanograms per Liter
Kilogram per Milliliter and Nanogram 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
nanograms per liter = kilograms per milliliter × 1e+15
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram per milliliter equals 1000000 base units, and 1 nanogram per liter equals 1e-9 base units, so dividing one by the other gives the direct kilogram per milliliter-to-nanogram per liter factor of 1e+15.
Simple example
1 kg/mL × 1e+15 = 1e+15 ng/L
1 kilogram per milliliter = 1e+15 nanograms per liter.
Real-world example
1,000 kg/mL × 1e+15 = 1e+18 ng/L
1,000 kilograms per milliliter = 1e+18 nanograms per liter.
Conversion table
| Kilogram per Milliliter (kg/mL) | Nanogram per Liter (ng/L) |
|---|---|
| 0.1 kg/mL | 1e+14 ng/L |
| 1 kg/mL | 1e+15 ng/L |
| 10 kg/mL | 1e+16 ng/L |
| 100 kg/mL | 1e+17 ng/L |
| 1,000 kg/mL | 1e+18 ng/L |
| 10,000 kg/mL | 1e+19 ng/L |
Reverse conversion: Nanogram per Liter to Kilogram per Milliliter
1e+15 ng/L × 1e-15 = 1 kg/mL
1e+15 nanograms per liter = 1 kilograms per milliliter.
kilograms per milliliter = nanograms per liter × 1e-15
For a page dedicated to this direction, see Nanogram per Liter to Kilogram per Milliliter.
Understanding the Kilogram per Milliliter (kg/mL)
Mass per volume density.
Understanding the Nanogram per Liter (ng/L)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanograms per liter are in 1 kilogram per milliliter?
1 kilogram per milliliter equals 1e+15 nanograms per liter, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram per milliliter to nanogram per liter?
Multiply the kilogram per milliliter value by 1e+15. The converter above does this instantly to whatever precision you set.
How do I convert nanogram per liter back to kilogram per milliliter?
Use the reverse factor: 1 nanogram per liter equals 1e-15 kilograms per milliliter. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram per milliliter?
Kilogram per Milliliter (kg/mL) is a unit of density.
What is a nanogram per liter?
Nanogram per Liter (ng/L) is a unit of density.
Is the kilogram per milliliter to nanogram per liter conversion exact?
Yes. Both kilogram per milliliter and nanogram 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.