Contact Us
Questions, feedback, or a tool you would like to see? We would love to hear from you.
How We Can Help You
Calc369 is built for everyday people, students, developers, and working professionals who need fast, accurate answers without bloat or paywalls. Whether you noticed an edge-case calculation error, have an idea for a new utility, or want to discuss a partnership, here are the most effective ways to reach out:
1. Reporting a Calculation Bug or Formatting Glitch
Accuracy is the core foundation of every tool on this site. If any calculator or unit converter produces a number that contradicts your manual checks or official standards, please write to us with the following details so we can reproduce and patch the issue quickly:
- Tool Name and URL: The exact page where you experienced the unexpected behavior (such as
/finance-tools/sip-calculator). - Input Values: The exact figures, dropdown selections, or text strings you entered into the tool.
- Expected vs. Observed Result: What output value you expected based on standard formulas, and what the screen actually displayed.
- Device and Browser: Your device type (desktop, smartphone, tablet) and browser (Chrome, Firefox, Safari, Edge).
2. Requesting a New Tool or Calculator
We are constantly expanding our collection of calculators across finance, health, math, construction, and developer utilities. If there is a calculation you perform repeatedly in spreadsheets or by hand that is missing from our catalog, tell us about it. When submitting a request, feel free to share the underlying mathematical formula, any official documentation links, and what input fields you would find most helpful.
3. Content Corrections and Educational Feedback
Every tool page on Calc369 features a comprehensive educational reference guide, formula derivation, and worked examples. If you spot a factual typo, an outdated financial threshold, an ambiguous explanation, or an error in a reference table, we welcome your feedback. Clear, accessible educational content helps everyone understand the math behind their daily calculations.
4. Business, Media, and General Inquiries
For inquiries regarding site partnerships, software integrations, editorial questions, or general website feedback, please send an email to hello@calc369.com with a descriptive subject line. We do not accept paid guest posts or unsolicited link-insertion requests, but we are always open to genuine collaborations that add value for our visitors.
Frequently Asked Support Questions
Do you store the numbers or files I enter into tools?
No. Every calculator, converter, and generator on Calc369 runs entirely within your browser using local client-side JavaScript. None of your inputs, file uploads, or calculation results are ever transmitted to our servers or stored in any database.
Are the calculation formulas on Calc369 verified?
Yes. Every tool is built on publicly documented mathematical, financial, or scientific formulas, such as standard banking amortization schedules, official SI unit conversions, and established clinical indexes. We test each calculator against independent reference implementations before publishing.
Can I use Calc369 tools for commercial projects?
Yes. You are completely free to use the results, numbers, and generated assets (such as QR codes, bar codes, or CSS snippets) for personal, academic, or commercial projects without any fee or attribution requirement.
Why does a tool look slightly different on my phone?
All Calc369 tools are built using modern responsive layouts that adapt automatically to your screen size. On mobile devices, side-by-side comparison tables and dual-pane converters stack vertically to make touch interactions and readability as comfortable as possible.
How can I save my preferred currency or theme?
Theme toggles and default currency choices are saved locally on your device via your web browser local storage. Your preferences persist automatically across visits as long as you do not clear your browser site data.
How quickly do you resolve reported bugs?
Because Calc369 is maintained directly by active software developers, verified mathematical errors and user interface bugs are typically evaluated, patched, and pushed live within 24 to 72 hours of receiving a confirmed report.