ppm to mg/L
ppm to mg/L: use mass concentration, solution density. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
mg/L = ppm by mass × solution density in kg/L
Variables & units
- Mass concentration
- ppm by mass · minimum 0, maximum 1000000000000
- Solution density
- kg/L · minimum 0.000001, maximum 100
Worked example
10 ppm by mass in a 1 kg/L solution equals 10 mg/L.
Assumptions
ppm and mg/L are numerically equal only at density 1 kg/L. Gas volume ratios need a different model.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
Use the default input values to find the answer. The reset icon restores those values.
Calculated on your device. Your latest 100 calculations stay in this browser.