Have a question about the calculator, found a bug, or want to suggest a feature? Fill out the form below and we'll get back to you as soon as we can.
Other Ways to Reach Us
- Bug reports: Describe the inputs you used and the unexpected result. Screenshots help.
- Feature requests: Tell us what you're trying to calculate that the tool doesn't currently support.
- Privacy or legal questions: See our Privacy Policy and Terms of Use pages first — your question may already be answered there.
- Advertising inquiries: We display Google AdSense ads. We do not offer direct ad placements.
Response Time
We aim to respond to all messages within 1–2 business days. We are a small independent operation, so we appreciate your patience. Complex technical or legal questions may take longer to address thoroughly.