🛠️ Support & General Inquiries
Bug reports, tool requests, general questions, DMCA notices — we respond within 24–48 hours.
💼 Business & Professional
Partnerships, licensing, advertising, media inquiries, and business proposals.
Send a Message
Found a Bug?
Tell us which tool, what you entered, and what result you got vs expected. Or use our dedicated bug report form.
Suggest a Tool
Know a calculator we're missing? Use our tool request form or email us directly.
Business Inquiries
For partnerships, licensing, and professional matters: ceo@calcus.online
Response Time
We typically respond within 24–48 hours on weekdays. Bug reports are prioritized.
Privacy
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