Enter the volume, density, and molar mass into the calculator to determine the molarity in mol/L.

Ml To Mol/L Calculator

Enter any 3 values to calculate the missing variable

Ml To Mol/L Formula

The following formula is used to calculate the molarity (mol/L) for a given volume, density, and molar mass.

M = (V * D) / M_m

Variables:

  • M is the molarity in mol/L
  • V is the volume in mL
  • D is the density in g/mL
  • M_m is the molar mass in g/mol

To calculate the molarity, multiply the volume by the density, and then divide the result by the molar mass.

mL to mol/L Conversion Table (Assumes ρ = 1.00 g/mL; NaCl M = 58.44 g/mol)
Volume (mL) Molarity (mol/L)
10.0000171129
20.0000342258
50.0000855645
100.000171129
150.000256694
200.000342258
250.000427823
300.000513387
500.000855645
750.00128347
1000.00171129
1500.00256694
2000.00342258
2500.00427823
3000.00513387
4000.00684516
5000.00855645
7500.0128347
10000.0171129
20000.0342258
*Assumes density 1.00 g/mL and molar mass 58.44 g/mol (NaCl). Calculator formula: M = (ρ × V) / (M × 1000).

What is Molarity?

Molarity, also known as molar concentration, is a measure of the concentration of a solute in a solution. It is defined as the number of moles of solute per liter of solution. Molarity is commonly used in chemistry to express the concentration of a chemical solution. The unit of molarity is mol/L, which indicates the number of moles of solute present in one liter of solution.

How to Calculate Molarity?

The following steps outline how to calculate the molarity.


  1. First, determine the volume of the solution in mL (V).
  2. Next, determine the density of the solution in g/mL (D).
  3. Next, determine the molar mass of the solute in g/mol (M_m).
  4. Finally, calculate the molarity using the formula M = (V * D) / M_m.
  5. After inserting the values and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Volume (V) = 100 mL

Density (D) = 1.2 g/mL

Molar Mass (M_m) = 60 g/mol