Contact Us
We'd love to hear from you — whether it's a bug report, feature request, partnership inquiry, or just feedback on our tools.
For all inquiries, reach us at:
We read every email and reply as soon as we can.
How Can We Help?
Report a Bug or Error
Found an incorrect calculation or broken feature? Please include the calculator name, your inputs, the result, and the expected result.
Suggest a Calculator
Have an idea for a new calculator we should build? Tell us what you need and we'll consider adding it to our roadmap.
Partnership & Business
Interested in content partnerships, API licensing, white-label solutions, or advertising opportunities? Let's talk.
Press & Media
Media inquiries, data citation requests, or interview requests — we're happy to help journalists and researchers.
Accuracy Concerns
If you believe any calculator produces an incorrect result, please email us with:
- The calculator name and URL
- The inputs you entered
- The result you received
- The expected result and your source
We check every accuracy report and correct confirmed errors. Read how the calculators work on our Methodology page.