Get in Touch
Contact Us
Have a question, bug report, or calculator suggestion? We'd love to hear from you.
Bug Report
Found an incorrect result or broken feature? Let us know and we'll fix it fast.
New Calculator
Suggest a calculator we don't have yet — we actively build based on user requests.
Formula Accuracy
Believe a formula is incorrect or outdated? We take accuracy seriously and investigate every report.
General Question
Anything else — methodology, partnerships, or just a hello. We read every message.
Send a Message
Response Time
We read every message and reply to most within 2 business days. For urgent calculator accuracy issues, please include the calculator name and your specific inputs in your message.