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Bug reports, calculator suggestions, or general questions — we read every message and aim to reply within 2 business days.

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Response Time

We aim to reply to all messages within 2 business days. Complex bug reports may take slightly longer.

Bug Reports

Please include the calculator name, the values you entered, the result you received, and the result you expected. Screenshots are welcome.

Calculator Suggestions

We love adding new tools. Tell us what you need — describe the calculation, the inputs, and what the output should be.

General Questions

Check our FAQ section first — your question may already be answered there.