Contact Us
Have a question, found a problem, or want to suggest a calculator? Send us a message using the form below — the form records your message for Calculty. You can also use it for privacy requests and accessibility issues.
Questions about a result
Unsure what a number means or which calculator fits your situation? Tell us the tool and the inputs you used.
Calculator suggestions
Missing a tool you need? We add popular requests regularly, and suggestions with the math behind them move fastest.
Advertising
Banner spots appear across the site. Mention the pages or audiences you are interested in and we will reply with details.
What to expect after you write
Response times vary. Messages about a specific calculator are much easier to act on when you include the tool's name, the values you entered, and the result you saw — a screenshot works too, so feel free to describe what you observed step by step.
Feature suggestions are welcome and reviewed regularly. When several readers ask for the same tool, it moves up the queue, so a short note explaining how you would use the calculator helps us prioritize it.
Before you write
Many questions are already answered on the site. The About page explains how our calculators work and how results are meant to be used, and each calculator page includes worked examples and common questions below the tool. For privacy questions, see the Privacy Policy; the Terms of Use cover what the site may and may not be used for.
We cannot provide personal financial, medical, or legal advice, and we cannot verify figures for your specific situation — for decisions that matter, please consult a qualified professional. If you are experiencing an account problem such as a lost password, start with the sign-in page's reset option before writing to us.