Contact FitCalCalc
Last updated: July 2026
We are a small team and we read every message. Whether you spotted a calculation error, want a new feature, or just have a question — reach out and we will get back to you.
Send Us a Message
This form works entirely in your browser. It opens your email app pre-filled with your message — no data is stored on our servers.
Direct Email
Prefer email? Write to us directly at 18999737@qq.com. We typically reply within a few business days.
Before You Write
- Calculator question? Most "wrong result" questions are answered in our FAQ.
- Medical or nutrition advice? We cannot give personalized advice. Please consult a licensed healthcare professional. See our Disclaimer.
- Something broken? Tell us your device, browser, and the calculator you were using — it helps us reproduce the issue fast.
What to Include in Your Message
The more detail you give us, the faster we can help. For the best result, please include:
- Your device and browser (e.g., "iPhone 14, Safari" or "Windows laptop, Chrome").
- The calculator or page you were using and the approximate inputs you entered.
- What you expected vs. what you saw — a screenshot is ideal.
- For feature requests, a one-line description of the workflow you'd like to see.
Our Response Time
We are a small team, but we read every message. Most inquiries receive a reply within 2–3 business days. Bug reports that include the details above are usually triaged first, because fixing a broken calculation helps everyone.
Other Ways to Get Help
Before reaching out, these pages may answer your question instantly:
- Frequently Asked Questions — calculator behavior, units, and saving your data.
- The Fitness Blog — in-depth guides on TDEE, macros, BMI, body fat, and 1RM.
- Medical Disclaimer — what our estimates can and cannot tell you.
- References — the peer-reviewed sources behind every formula.
If you'd like to understand how we research and review content, see our Editorial Standards page.