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Report an error, suggest a tool or ask a question.

Email: shahid_abbas_haider@hotmail.com
Operator: Shahid Abbas, Pakistan
Reply time: usually within two business days

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Reporting a calculator error

Please include the page address, the numbers you entered, the result you got, and the result you expected. This helps me find and fix the problem quickly.

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Last updated: October 7, 2026

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