Convert Milligrams per Liter to Kilograms per Liter
1 milligram per liter (mg/L) equals 0.000001 kilograms per liter (kg/L).
1 mg/L = 0.000001 kg/L
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk milligram per liter to kilogram per liter converter to paste a column from Excel.
How to Convert Milligram per Liter to Kilogram per Liter
- 1 mg/L = 0.000001 kg/L
- 1 kg/L = 1000000 mg/L
- Example: convert 15 mg/L to kg/L: 15 mg/L = 15 × 0.000001 kg/L = 0.000015 kg/L
Formula
kg/L = mg/L ÷ 1000000
Derivation from SI units:
- 1 mg/L = 10⁻⁶ kg ÷ 10⁻³ m³ = 10⁻³ kg/m³
- 1 kg/L = 1 kg ÷ 10⁻³ m³ = 1000 kg/m³ = 1 g/cm³
- 1 mg/L = 0.001 kg/m³ ÷ 1000 kg/m³ per kg/L = 0.000001 kg/L
Both units are defined exactly, so the factor is exact. Milligram per Liter definition: milligram per liter; Kilogram per Liter definition: kilogram per liter.
Worked examples
- A reading of 2 mg/L converts to 0.000002 kg/L.
2 mg/L × 0.000001 = 0.000002 kg/L - A value of 50 mg/L is 0.00005 kg/L.
50 mg/L × 0.000001 = 0.00005 kg/L
Milligram per Liter to Kilogram per Liter conversion table
| Milligrams per Liter (mg/L) | Kilograms per Liter (kg/L) |
|---|---|
| 0.01 mg/L | 1 × 10⁻⁸ kg/L |
| 0.1 mg/L | 1 × 10⁻⁷ kg/L |
| 0.5 mg/L | 5 × 10⁻⁷ kg/L |
| 1 mg/L | 0.000001 kg/L |
| 2 mg/L | 0.000002 kg/L |
| 5 mg/L | 0.000005 kg/L |
| 8 mg/L | 0.000008 kg/L |
| 10 mg/L | 0.00001 kg/L |
| 50 mg/L | 0.00005 kg/L |
| 100 mg/L | 0.0001 kg/L |
| 250 mg/L | 0.00025 kg/L |
| 500 mg/L | 0.0005 kg/L |
| 1000 mg/L | 0.001 kg/L |
Where it's used
Milligrams per Liter are used for water quality (dissolved oxygen, nitrate, chlorine), while kilograms per liter appear in fuel densities (petrol ≈ 0.74 kg/L, diesel ≈ 0.84 kg/L). Both measure density (mass per unit volume) and mass concentration, so the conversion is a fixed factor.
Milligram per Liter to other density units
| Conversion | 1 mg/L equals |
|---|---|
| milligram per liter to kilogram per cubic meter | 0.001 kg/m³ |
| milligram per liter to gram per cubic centimeter | 0.000001 g/cm³ |
| milligram per liter to kilogram per liter | 0.000001 kg/L |
| milligram per liter to gram per liter | 0.001 g/L |
| milligram per liter to pound per cubic foot | 0.00006242796058 lb/ft³ |
| milligram per liter to pound per cubic inch | 3.6127292 × 10⁻⁸ lb/in³ |
| milligram per liter to pound per gallon | 0.000008345404452 lb/gal |
Frequently asked questions
How many kilograms per liter are in 1 milligram per liter?
1 mg/L = 0.000001 kg/L.
How do I convert milligrams per liter to kilograms per liter?
Multiply the value in mg/L by 0.000001, or divide it by 1000000. For example, 15 mg/L × 0.000001 = 0.000015 kg/L.
Is the mg/L to kg/L conversion exact?
Yes. Both units are defined exactly, and 1 mg/L is exactly 0.000001 kg/L.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 8 (litre) with SI prefix milli.
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 8 (litre).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Milligrams per Liter to Kilograms per Liter. Retrieved October 17, 2026, from https://scientificconverters.com/density/milligrams-per-liter-to-kilograms-per-liter/
IEEE
Scientific Converters, "Convert Milligrams per Liter to Kilograms per Liter," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/density/milligrams-per-liter-to-kilograms-per-liter/