Dilution & Concentration Calc

Dilution Formula ($M_1V_1 = M_2V_2$)

Use to dilute a high-concentration stock solution to a target concentration.

Initial Concentration ($M_1$, Stock)

Target Concentration ($M_2$)

Target Volume ($V_2$, Final)

Required Stock Volume ($V_1$)

Solvent (Water) Volume

Final Volume

Procedure: Take - of the stock solution, then add solvent until the total volume reaches -.

Molarity Calculation (M = mol/L)

Calculate molarity based on mass of solute and molecular weight.

Mass of Solute (Mass)

Molecular Weight (MW)

g/mol

Solution Volume (Volume)

Calculated Molarity

Molarity (M)

Required Mass Calculation

Determine the mass of reagent needed for a specific concentration and volume.

Target Concentration

Molecular Weight (MW)

g/mol

Target Volume

Required Reagent Mass

Mass needed

Recent Calculation History

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User Guide & Scientific Principles

💡 MW Calculator Tip

For chemical formulas, the first letter of an element symbol must be capitalized (e.g., NaCl, not nacl). Complex organic formulas or parenthesis are not fully supported in this simple version.

🧪 Dilution Tip

When changing units, the calculator interprets the current input value based on the selected unit. Always ensure the units are correct before calculation.

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