Calculate mg/L from moles and solution volume or from molarity and molar mass for common compounds and ions with unit conversions.

Concentration refers to the selected compound or ion, including waters of hydration when listed.

Related Calculators

Moles to mg/L Formula

The following formula is used to calculate the concentration in mg/L for a given number of moles, molar mass, and volume.

C = (n × M × 1000) / V

Variables:

  • C is the concentration in mg/L
  • n is the number of moles
  • M is the molar mass in g/mol
  • V is the volume in liters

To calculate the concentration in mg/L, multiply the number of moles by the molar mass and 1000, then divide by the volume in liters.

Moles to mg/L Conversion Table (NaCl, M = 58.443 g/mol; Volume = 1.00 L)
Moles (mol) Concentration (mg/L)
0.00015.844
0.000529.222
0.00158.443
0.002116.886
0.0025146.108
0.005292.215
0.0075438.323
0.010584.430
0.0125730.538
0.015876.645
0.0201168.860
0.0251461.075
0.0502922.150
0.0754383.225
0.1005844.300
0.25014610.750
0.50029221.500
0.75043832.250
1.00058443.000
2.000116886.000
*Assumes sodium chloride (NaCl, M = 58.443 g/mol) and a 1.00 L solution. Formula: mg/L = mol × M(g/mol) × 1000 ÷ Volume(L).

What is Moles to mg/L?

Converting moles to mg/L is a common calculation in chemistry, particularly in the preparation of solutions. The concentration in mg/L (milligrams per liter) indicates how many milligrams of a substance are present in one liter of solution. This conversion is useful for understanding the strength of a solution and for preparing solutions with precise concentrations.

How to Calculate Moles to mg/L?

The following steps outline how to calculate the concentration in mg/L from moles, molar mass, and volume.

  1. First, determine the number of moles (n).
  2. Next, determine the molar mass (M) in g/mol.
  3. Next, determine the volume (V) in liters.
  4. Finally, calculate the concentration using the formula C = (n * M * 1000) / V.
  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.

Number of moles (n) = 0.5 mol

Molar mass (M) = 58.44 g/mol

Volume (V) = 1 L