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Dilution Calculator (M1V1 = M2V2)
This is a calculator for finding a missing dilution equation value, where M₁ and M₂ are equal to the molarity of the solutions, measured as mol/L or M, and V₁ and V₂ are equal to the volume of the solutions. Concentration of one solution is equal to the molarity times volume of the other solution (M₁V₁ = M₂V₂). Units should remain constant on both sides of the equation. This dilution calculator can be used to find missing values needed to dilute a solution.
Formula: M1 x V1 = M2 x V2
M1
V1
M2
V2
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References
This online resource may be cited as follows
MLA
"Quest Calculate™ Dilution Calculator (M1V1 = M2V2)." AAT Bioquest, Inc., 29 Oct. 2025, https://www.aatbio.com/tools/quick-calculator/m1v1-formula-calculator.
APA
AAT Bioquest, Inc. (2025, October 29). Quest Calculate™ Dilution Calculator (M1V1 = M2V2). AAT Bioquest. https://www.aatbio.com/tools/quick-calculator/m1v1-formula-calculator.
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  • Enter in 3 of the values, press "Calculate", and the last value will be calculated

  • Dilution Factor

    Calculate dilution factor given initial and final volumes

  • M1V1 = M2V2

    Solve for concentration or volume with a dilution

  • Serial Dilution

    Generates a serial dilution protocol based on dilution factor or concentration range