Dilution Calculator (C1V1 = C2V2)
Work out how much stock and diluent for any target concentration — the universal lab/pharmacy dilution formula.
The workhorse of every lab and pharmacy: to make 100 mL of 25% from a 100% stock, take 25 mL stock and add 75 mL diluent. The only rule is that C1 and C2 share a unit (% with %, mg/mL with mg/mL). The fold-dilution shortcut: a '1:4 dilution' means 1 part stock to 3 parts diluent = 4 parts total — note that's *not* the same as a 4× dilution everywhere, so confirm convention.
Formula
Reference aid for healthcare professionals only. Every result must be independently verified before clinical use. Never use this tool for self-medication or to replace clinical judgement.
Work out how much stock and diluent for any target concentration — the universal lab/pharmacy dilution formula. The Dilution Calculator (C1V1 = C2V2) is a free, private c1v1 c2v2 tool — every result computes instantly in your browser with no sign-up and no data upload.
About Dilution Calculator (C1V1 = C2V2)
The workhorse of every lab and pharmacy: to make 100 mL of 25% from a 100% stock, take 25 mL stock and add 75 mL diluent. It applies C1 × V1 = C2 × V2 → V1 = (C2 × V2) ÷ C1. Use the Dilution Calculator (C1V1 = C2V2) to get an instant, clearly-explained result with the working shown step by step — free, private and with the source method cited.
How to use Dilution Calculator (C1V1 = C2V2)
- 1Enter your details in the Dilution Calculator (C1V1 = C2V2) input fields above.
- 2The result updates instantly with the working and reference bands shown.
- 3Adjust any value to explore how it changes the outcome — it's free and unlimited.
Why use Dilution Calculator (C1V1 = C2V2)?
- ✓Instant c1v1 c2v2 result that recomputes as you type — no waiting, no page reloads
- ✓100% client-side: your health data never leaves your browser
- ✓Shows the actual formula and your numbers substituted in, so you can see exactly how the result is reached
- ✓Based on published, citable sources (Standard dilution principle (C1V1 = C2V2))
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the Dilution Calculator (C1V1 = C2V2) work?+
The workhorse of every lab and pharmacy: to make 100 mL of 25% from a 100% stock, take 25 mL stock and add 75 mL diluent. The calculation uses the formula: C1 × V1 = C2 × V2 → V1 = (C2 × V2) ÷ C1. Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the Dilution Calculator (C1V1 = C2V2) accurate, and what is it based on?+
The method is traceable to authoritative sources: Standard dilution principle (C1V1 = C2V2). Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the Dilution Calculator (C1V1 = C2V2) free and private?+
Yes. It's completely free with no sign-up, and all computation happens locally in your browser, so none of your health data ever leaves your device.
Can I use this for medical decisions?+
This is a reference aid for healthcare professionals and must be independently verified. It is not for self-diagnosis or self-medication.
What can I use the Dilution Calculator (C1V1 = C2V2) for?+
It's commonly used for c1v1 c2v2, dilution calculator, stock solution dilution. Work out how much stock and diluent for any target concentration — the universal lab/pharmacy dilution formula.
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