We're Here to Help

Have a suggestion for a new tool? Found a bug? Or just want to say hi? We’d love to hear from you.

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Missing a specific calculator? Tell us what you need and we might build it!

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Mathematical error or broken layout? Let us know so we can fix it immediately.

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General questions about our formulas or how to use the site.

Get In Touch

We aim to make Multi-Tool App the most reliable utility hub on the web. Your input is the primary way we improve.

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Response Time

Within 24-48 Hours

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Check the Info Modals: Most tool logic is explained in the info icon next to the tool titles.
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Be Specific: If reporting a calculation error, please include the inputs you used so we can reproduce it.
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Privacy: Do not send sensitive personal or financial information. We only need the calculation data to help.

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