Contact Us
Have feedback, found a bug, or want to suggest a new tool? We'd love to hear from you.
How to Reach Us
The best way to contact us is via email at: hello@craftcalclab.com
What We Can Help With
- Bug reports: If a calculator is producing incorrect results or behaving unexpectedly, let us know which tool, what inputs you used, and what result you expected.
- Tool suggestions:Have an idea for a calculator that would help your craft? Tell us about it — what you're making, what calculation you need, and what formulas or references are relevant.
- Formula corrections:If you believe a formula or reference we're using is incorrect, please share the source material so we can verify and correct it.
- General feedback: Anything else — usability issues, feature requests, or just saying hello.
Response Time
We aim to respond to all inquiries within 2–3 business days. Bug reports and formula corrections are prioritized.
Advertising Inquiries
For advertising-related questions or issues with ads displayed on the Site, please include "Advertising" in your email subject line. Note that ads on this site are served by Google AdSense and we do not directly control which specific ads appear.