Contact Us

We’d love to hear from you. Whether you have a question, spotted an issue with one of our calculators, or have an idea for a new tool, feel free to reach out.

Get in Touch

Email:  contact@knowfromus.com

We aim to respond to all messages within 2–3 business days.

What to Include

To help us respond quickly, please let us know:

  • Which calculator you’re writing about (if applicable)
  • What you noticed — an error, a suggestion, or a question
  • Your device/browser, if you’re reporting something that isn’t working correctly

Suggest a Calculator

Is there a calculator you wish existed? We’re always adding new tools based on what people need. Send us your idea and we’ll consider it for a future update.

Business Inquiries

For advertising, partnership, or collaboration inquiries, please use the email above with the subject line “Business Inquiry.”


Note: We do not offer personalized financial, medical, or legal advice via this contact form. For guidance specific to your situation, please consult a qualified professional.