Contact EverydayCalc.org

Have feedback, a correction, or an idea for a calculator that would be useful? Send a note to theavgdevs@gmail.com.

For formula suggestions, include the calculator name, the inputs you used, the result you expected, and any source or context that helps explain the change.

EverydayCalc.org does not provide professional engineering, medical, legal, financial, or veterinary advice. The tools are for general planning estimates.

For the fastest correction, include the page URL and the exact result that looked wrong. Screenshots are helpful when the issue is visual, especially on mobile.

You can also send suggestions for new calculators, better examples, missing sources, or unclear FAQs. Useful suggestions are prioritized when they fit the existing home air, electricity cost, aquarium care, home project, moving, finance, or teacher tool clusters.

What to include

• Report a calculator issue with the page URL, inputs used, actual result, and expected result.
• Suggest a new calculator with the decision it would help and the inputs people would enter.
• Ask about sources or methodology when a formula, assumption, citation, or example needs clarification.
• Partnership or affiliate inquiries should explain the relevant page or calculator topic.