Contact Us
We are a small team and we read every message. Whether you have a question about a calculator, found a bug, or just want to say hello — we would love to hear from you.
General Inquiries
Questions about CalcHQ, feedback on a calculator, or anything else.
[email protected]Send a Message
Frequently Asked Questions
Are the calculators free to use?
Yes. Every calculator on CalcHQ is completely free. There are no subscriptions, no paywalls, and no sign-up required.
How accurate are the results?
Our calculators use standard, well-documented formulas. Results are estimates for informational purposes. For financial, medical, or legal decisions, we recommend consulting a qualified professional.
Do you store the data I enter?
No. All calculations run entirely in your browser. The values you enter never leave your device or get stored on our servers.
Can I suggest a new calculator?
Absolutely. Use the form on this page or email [email protected] and we will consider it for a future update.
I found a bug or incorrect result — how do I report it?
Please use the form above and select 'Bug report / incorrect result'. Include the calculator name, the inputs you used, and the result you received. We take accuracy seriously and will investigate promptly.
How long does it take to get a reply?
We typically respond within 1–2 business days. For advertising and partnership inquiries, please allow up to 3 business days.