Have a question, an idea for a new calculator, or a result that does not look right? We would like to hear from you.
Emailcontact.calcsolver@gmail.com
Reporting a problem
Please tell us which calculator you used, the exact numbers you typed, and the answer you expected. That lets us reproduce the problem and fix it quickly.
Suggesting a tool
Many of our calculators started as reader requests. Describe the problem you want to solve and, if you can, an example with the answer.
When to expect a reply
We aim to answer within a few working days.