Contact Us
We are a small independent team building free conversion utilities for engineers, students, designers, and anyone who works with measurements and data formats. We read every message we receive — your accuracy reports have directly led to fixes in our tools.
The best way to reach us is by email: [email protected]
We aim to respond to all messages within 2 business days. For urgent issues, please write "Urgent" in the subject line.
Reporting Conversion Errors
If a conversion result appears incorrect, please include:
- Tool name — e.g., "Length Converter" or "Color Converter"
- Input value and unit — the value you entered and the unit you selected
- Output value received — what the tool showed
- Expected correct value — the result you believe is correct
- Reference source — a link to the standard or reference you used (e.g., NIST, ISO, engineering handbook)
- Browser and version — e.g., "Firefox 126 on Windows 11"
Conversion accuracy is critical to us — precision errors are treated as high-priority bugs.
Feature Requests
Is there a unit type, measurement system, or data format conversion we do not yet cover? We welcome suggestions. Please describe the specific conversion you need and the context in which you use it — engineering, science, cooking, design, or another field. This helps us prioritize and implement it correctly.
Business Inquiries
For advertising partnerships, content collaborations, or other business inquiries, please email [email protected] with "Business Inquiry" in the subject line.
About This Site
Convert Tools Online is an independent project. We are not affiliated with any standards body, measurement equipment manufacturer, or software company. Our goal is to provide accurate, reliable conversion utilities that are free to use without registration, subscriptions, or data collection.