PPM to Molarity Calculator

Your details

Choose whether to calculate molarity from ppm, or ppm from molarity.
ppm = mg of solute per litre of solution (assuming water density ~1 g/mL). ppb = micrograms per litre.
Mass concentration of the solute expressed in the selected unit.
ppm
Select a common substance or choose Custom to enter any molar mass.
Density of the solvent at the measurement temperature. Water at 25 C is 0.997 g/mL (use 1.0 for most practical purposes). Adjust for non-aqueous solvents.
g/mL
Choose the unit for the molarity result.
Molarity
0.017112

Molar concentration of the solution

Molarity unitmol/L
Concentration1,000
Concentration unitppm (mg/L)
mg/L (ppm equivalent)1,000
g/L1
Molar mass used58.44g/mol
1,000 mg/L
Very dilute<250Moderate250-1000Concentrated1000-5000High5000+

Molarity: 0.017112 mol/L

  • The solution contains 1000.0000 mg of sodium chloride (NaCl) per litre (1000.0000 ppm equivalent).
  • This sodium level is within the range typical of drinking water (up to 1000 mg/L).
  • ppm (mg/L) was converted to mol/L.
  • The ppm-to-molarity formula assumes dilute aqueous solutions. If the solvent is not water or the solution is concentrated, adjust the density field.

Next stepTo prepare this solution from a solid, multiply molarity (mol/L) by your target volume (L) to get moles, then multiply by molar mass to get the mass of solute needed.

 = Powered by OnlyCalculators