Contact ChemCalculator

Have a question? Let's solve it.

Questions, corrections, and careful criticism are welcome. Email is the best way to reach us, whether you are working through a calculation or building with the platform.

Email uscontact@chemcalculator.com

Ask a question

Need help choosing a calculator or understanding a method? Tell us what you are trying to solve.

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Report a calculation

Found an unexpected result, unclear unit, or scientific-data issue? Send the page and steps that produced it.

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Build with the API

Building with our endpoints or exploring an integration? Share the workflow and API contract you need.

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A useful report includes

Help us reproduce the problem.

  • The calculator or page URL
  • The values and units you entered
  • The result you received and what you expected
  • Any source or reference that supports a correction

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