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Solution Concentration converter

Mass-based concentration for solutions and water quality.

13 units, referenced to the kilogram per cubic meter

Converter

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Decimals, fractions such as 3/4, and scientific notation such as 1.2e3 all work.

Quick pairs

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One milligram per liter in every solution concentration unit

12 rows
UnitSymbol1 mg/L equals
Kilogram per cubic meterkg/m³0.001
Gram per literg/L0.001
Microgram per literµg/L1,000
Nanogram per literng/L1,000,000
Gram per milliliterg/mL1e-6
Milligram per millilitermg/mL0.001
Kilogram per literkg/L1e-6
Percent (g/100 mL)% w/v0.0001
Part per million (in water)ppm1
Part per billion (in water)ppb1,000
Grain per gallon (US)gr/gal0.05841783116
Pound per gallon (US)lb/gal8.345404452e-6

How the milligram per liter to part per million (in water) conversion works

For dilute water solutions 1 mg/L and 1 ppm are the same number.

Multiply by 1 to go from milligram per liter to part per million (in water):

ppm = mg/L × 1

Going the other way, multiply by 1, which is the same as dividing by 1.

Questions

How many part per million (in water) are in one milligram per liter?

One milligram per liter equals 1 part per million (in water).

Which units does this solution concentration converter cover?

13 units in total, all referenced to the kilogram per cubic meter. They include kilogram per cubic meter, gram per liter, milligram per liter, microgram per liter, nanogram per liter, gram per milliliter and more. Pick any pair from the two dropdown lists.

How precise are the results?

Every conversion is computed in your browser at double precision from the factors listed on this page, which follow the SI definitions and the exact international agreements for imperial and US customary units. Use the Decimals control to round the display without changing the underlying value.

Does anything I type leave my device?

No. The converter is plain JavaScript running locally, with no server round-trip, and the page keeps working offline once loaded.