Get in Touch
Email Support
For general inquiries, technical support, or feedback about our calculators.
support@calchub.comBusiness Inquiries
For partnerships, business collaborations, or enterprise solutions.
business@calchub.comBug Reports
Found a calculation error or technical issue? Help us improve by reporting it.
bugs@calchub.comSend us a Message
Frequently Asked Questions
Yes, all calculators on CalcHub are completely free to use. We believe in providing accessible calculation tools to everyone without any cost or subscription fees.
Our calculators use industry-standard formulas and are thoroughly tested for accuracy. However, results should be used for informational purposes and we recommend consulting with professionals for important financial or business decisions.
No, we do not store any of your calculation data. All calculations are performed locally in your browser, and your privacy is completely protected. We only store preferences like theme settings locally on your device.
Absolutely! We welcome suggestions for new calculators. Please use the contact form above with the subject "Feature Request" and describe the calculator you'd like to see. We review all suggestions and prioritize based on user demand.
CalcHub is designed as a responsive web application that works perfectly on all devices. You can add it to your mobile home screen for an app-like experience. A native mobile app may be considered in the future based on user feedback.
Response Time
We typically respond to all inquiries within 24-48 hours during business days. For urgent technical issues affecting calculator functionality, we aim to respond within 12 hours.