Enter the molarity and molecular weight into the calculator to determine the concentration in milligrams per milliliter.

M to mg/mL Calculator

Enter any 2 values to calculate the third

M To Mg/Ml Formula

The following formula is used to calculate the conversion from Molarity (M) to Milligrams per Milliliter (Mg/Ml).

\[ C_{\text{mgยทmL}^{-1}} = M\;(\text{molยทL}^{-1}) \times MW\;(\text{gยทmol}^{-1}) \]
\[ \bigl(\text{or, if }MW\text{ is in mgยทmol}^{-1}\bigr)\qquad C_{\text{mgยทmL}^{-1}} = \frac{M \times MW}{1000} \]

where M is the molarity of the solution and MW is the molecular weight of the solute.

To calculate the conversion from Molarity to Milligrams per Milliliter, multiply the molarity by the molecular weight of the solute. Then, divide the result by the density of the solution. This will give the concentration of the solution in milligrams per milliliter.

Molarity to mg/mL Conversion Table (NaCl, MW = 58.44 g/mol)
Molarity Concentration (mg/mL)
0.1 mM0.006
0.2 mM0.012
0.5 mM0.029
1 mM0.058
2 mM0.117
5 mM0.292
10 mM0.584
20 mM1.169
25 mM1.461
50 mM2.922
75 mM4.383
100 mM5.844
125 mM7.305
150 mM8.766
200 mM11.688
250 mM14.610
300 mM17.532
500 mM29.220
1 M58.440
2 M116.880
* Rounded to 3 decimals. Assumes NaCl (MW = 58.44 g/mol). Relationship: mg/mL = M ร— MW(g/mol).

What is M To Mg/Ml?

M to Mg/Ml is a conversion from molarity (M) to milligrams per milliliter (Mg/Ml). Molarity is a measure of the concentration of a solute in a solution, or of any chemical species, in terms of amount of substance in a given volume. Milligrams per milliliter is a measure of the mass concentration of a solution, specifically the mass of solute per volume of solution. Therefore, converting from M to Mg/Ml involves determining the mass of the solute in milligrams for every milliliter of the solution.

How to Calculate M To Mg/Ml?

The following steps outline how to calculate the concentration in milligrams per milliliter (Mg/Ml) using the formula: Mg/Ml = M * MW / D.


  1. First, determine the molarity (M) in moles per liter.
  2. Next, determine the molecular weight of the solute (MW) in milligrams per mole.
  3. Next, determine the density of the solution (D) in grams per milliliter.
  4. Use the formula Mg/Ml = M * MW / D to calculate the concentration in milligrams per milliliter.
  5. After inserting the variables 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.

Molarity (M) = 0.5 moles per liter

Molecular weight (MW) = 100 mg/mole

Density (D) = 1.2 grams per milliliter