Education & Student
Dilution Calculator
Dilution Calculator is a browser-based calculator tool on CalcToolsBase. Free, browser-based Dilution Calculator with instant, clearly-labelled results. No signup, no uploads. To use it, enter your values and view the result directly in your browser — no signup and nothing to install.
Dilution Calculator takes your initial concentration, initial volume and final concentration and gives back the missing concentration or volume, applying C₁V₁ = C₂V₂. It's a quick, browser-based way to work out a dilution.
About this calculator
Dilution Calculator makes it easy to work out a dilution. Enter your initial concentration, initial volume and final concentration, and it uses C₁V₁ = C₂V₂ to show the missing concentration or volume instantly. Everything is computed in your browser, for both speed and privacy.
Designed for chemistry students and lab users, it returns the missing concentration or volume the moment you calculate — no sign-up, no uploads, and nothing stored between visits.
How to use
- Enter the initial concentration C₁.
- Enter the initial volume V₁.
- Enter the desired final concentration C₂.
- Press Calculate to find the final volume and diluent to add.
Why use Dilution Calculator
Fast
Calculations run in your browser. No round trip to a server.
Private
Your inputs never leave your device. Nothing is uploaded.
Free
No signup, no paywall, no ads-in-results, no watermarks.
Accurate
Uses standard formulas for quick educational estimates; check critical results before relying on them.
Mobile-ready
Optimised for phones, tablets, and desktops alike.
Transparent
Honest disclaimers wherever browser limits or regional rules apply.
Common uses
Dilution for tutoring and study groups
Dilution for quick what-if calculations
Dilution for science-fair preparation
Dilution for verifying a textbook result
Dilution for cross-checking a measurement
Dilution when revising for science exams
Technical notes
Dilution Calculator applies the dilution relation C₁V₁ = C₂V₂ to solve for the unknown concentration or volume.
Results assume ideal conditions and consistent units, so convert your inputs to the units shown before calculating.
Nothing you type is uploaded — the calculation happens entirely on your device.
FAQ
What formula does this use?
It uses C₁V₁ = C₂V₂, the standard dilution relationship for concentration and volume.
Why must the final concentration be lower?
Diluting always lowers concentration, so the final concentration must be less than the initial one.
What does the diluent amount mean?
It is how much solvent to add to reach the final volume, equal to the final volume minus the starting volume.
Does the Dilution Calculator send my data to a server?
No. The Dilution Calculator runs entirely in your browser, so nothing you enter is uploaded, stored, or shared.
Worked example
Using C₁V₁ = C₂V₂, diluting 2 M to 0.5 M in 100 mL needs 0.5 × 100 ÷ 2 = 25 mL of stock topped up to 100 mL.