Using ChemistryCalc

A free educational resource

You are welcome to use our calculators for learning and everyday planning. They provide calculations based on the inputs and assumptions shown on each page. Real solutions and reactions can depart from ideal models, so a calculated value may differ from an experimental measurement.

Use judgment with your results

Check units and input values before relying on a result. The site does not provide experimental safety instructions, a medical dose, or a guarantee of any outcome. Seek qualified advice when your question needs professional assessment.

We aim to make accurate, useful tools, but cannot promise that every result is appropriate for every purpose or that the service will always be available. The formulas and worked examples help you check how an answer was obtained.

Respect the website

Do not misuse the service or interfere with other visitors’ access. Links to reference websites are provided for further reading; including a link does not imply that those organizations endorse ChemistryCalc.

ChemistryCalc is an independent website. Organizations cited in our references do not sponsor or endorse this website.