Questions, feedback, bug reports, or a calculator suggestion? We'd love to hear from you.
Prefer to write directly? Email us at the relevant address above with as much detail as possible. For bug reports, please include the calculator name, the values you entered, the result you expected, and the result you saw — it helps us fix things faster.
Our suite grows based on what people actually need. If there's an electronics calculation you wish we covered — a specific converter topology, a filter design tool, or anything else — tell us at hello@numericalcalculator.com and describe the inputs, outputs, and formulas you'd expect. Many of our tools started as user requests.
You can browse everything we currently offer on the home page.