mg/kg to mg/L Concentration Converter

How mg/kg to mg/L Concentration Converter Works?

mg/kg to mg/L Concentration Converter works by multiplying the mass fraction in milligrams per kilogram (mg/kg) by the solution density in kilograms per liter (kg/L). The converter covers 7 mass fraction units, including mg/kg (ppm), µg/kg (ppb), ng/kg (ppt), g/kg and % w/w, and returns mass concentration in mg/L, µg/L, ng/L, g/L and % w/v.

4 steps to use mg/kg to mg/L Concentration Converter

1. Enter the concentration value.
2. Select the input unit, including mg/kg (ppm), µg/kg (ppb) or % w/w.
3. Enter the solution density, or keep 1.000 kg/L for dilute water samples.
4. Read the result in mg/L, µg/L, ng/L, g/L and % w/v.

mg/kg to mg/L Concentration Converter Formula

The mg/kg to mg/L formula is mg/L = mg/kg × density, written as c = w × ρ. The formula has 3 variables:

• c (mass concentration) is the result in milligrams per liter (mg/L).
• w (mass fraction) is the input in milligrams per kilogram (mg/kg).
• ρ (rho, density) is the solution density in kilograms per liter (kg/L).

3 worked examples of the mg/kg to mg/L Concentration Converter formula

1. 10 mg/kg in water (1.000 kg/L) = 10 mg/L.
2. 50 mg/kg in sea water (1.025 kg/L) = 51.25 mg/L.
3. 5 µg/kg in water = 5 µg/L = 5,000 ng/L.

Microgram per kilogram (µg/kg) converts to nanograms per liter (ng/L) by multiplying by 1,000 and by the density: 1 µg/kg in water equals 1,000 ng/L.

mg/kg to mg/L Concentration Converter Conversion Table

The mg/kg to mg/L conversion table lists 1, 10 and 100 mg/kg in mg/L for 6 liquids of different density.

What Is mg/kg to mg/L Concentration Converter?

mg/kg to mg/L is a concentration conversion that turns a mass fraction in milligrams per kilogram (mg/kg) into a mass concentration in milligrams per liter (mg/L).

A mass fraction (mg/kg, ppm by mass) compares the mass of a substance to the mass of the sample. A mass concentration (mg/L) compares the mass of a substance to the volume of the sample. The 2 values match only at a density of 1 kg/L.

• 1 mg/kg equals 1 part per million (ppm) by mass.
• 1 µg/kg equals 1 part per billion (ppb) by mass.
• 1 mg/kg in diesel (0.832 kg/L) equals 0.832 mg/L.

What Are the Uses of mg/kg to mg/L Concentration Converter?

There are 4 main uses of mg/kg to mg/L Concentration Converter: water quality testing, fuel specification, food contaminant limits and environmental reports.

• Water quality testing: Drinking water limits use mg/L, and soil limits use mg/kg.
• Fuel specification: Sulfur in diesel is limited to 10 mg/kg (EN 590) and 15 ppm (ASTM D975).
• Food contaminant limits: Pesticide limits in food use mg/kg, and lab methods report µg/L.
• Environmental reports: Sediment and water samples convert between mg/kg and mg/L for one report.