The fastest way to reach us is email: [email protected].
Reporting a wrong result
If a calculator gave you a number you believe is wrong, please include the calculator's name, the exact inputs you used, and the result you expected (and why, if you know). Every report is checked against the formula on the page; if we are wrong, we fix it and say so.
Suggesting a calculator
BeadCalc grows by reader demand. If there is a calculation you do often — at work, at school, at home — and no tool here covers it, tell us. The most helpful suggestions include the formula or a source for it if you know it, a real example from your own use ("I price freelance jobs and always need…"), and what a good answer would look like. Suggestions that help many people with everyday math go to the top of the list, and several tools now on the site started exactly this way.
Business and partnerships
For licensing, partnerships or bulk-use questions, use the same email with "Business" in the subject line. Please note that BeadCalc does not sell sponsored calculator placements or paid rankings — the order of tools and the results they produce are never for sale.
Everything else
Questions about privacy are answered in our Privacy Policy; questions about acceptable use in our Terms of Use. For anything else, the email above reaches a person.
We read everything and reply to most messages within a few business days. Please do not send personal financial or medical documents — we never need them to check a calculation.