Dilution Calculator (formerly Tocris Dilution Calculator)
Calculate the dilution required to prepare a stock solution
The R&D Systems dilution calculator enables you to calculate how to dilute a stock solution of known concentration. Enter C1, C2 & V2 to calculate V1.
The dilution calculator equation
The R&D Systems dilution calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
The dilution equation is commonly abbreviated to: C1V1 = C2V2
Dilution Calculator FAQs
How do I calculate the dilution factor using a dilution calculator?
An example of a dilution calculation using the R&D Systems dilution calculator
What volume of a given 10 mM stock solution is required to make 20 ml of a 50 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=50 μM, V2=20 mL and V1 is the unknown:
- Enter 10 into the Concentration (start) box and select the correct unit (millimolar)
- Enter 50 into the Concentration (final) box and select the correct unit (micromolar)
- Enter 20 into the Volume (final) box and select the correct unit (milliliter)
- Press calculate
- The answer of 100 microliter (0.1 mL) appears in the Volume (start) box
Is the Tocris Dilution Calculator Still Available?
Yes the Tocris dilution calculator is still available. You will find the same trusted functionality available on this page.
Tocris Bioscience is now part of R&D Systems.
Are the Tocris Molarity and Reconstitution Calculators Still Available?
Yes! You will find the same trusted functionality available on our website.
Tocris Bioscience is now part of R&D Systems.
What is the Solution Dilution Calculator used for?
- The Dilution Calculator allows you to calculate how to dilute a stock solution of known concentration, using the formular the equation C₁V₁ = C₂V₂ (where C is concentration and V is volume). This tool is commonly used to create working solutions from high concentration storage stock solutions.