Contact Us

We would like to hear from you. Email us at contact@100tools.online and we reply within 2 business days.

What you can contact us about

Reporting a calculation error or outdated figure, suggesting a new calculator, asking about our privacy practices, or business and advertising enquiries.

Please note

We cannot give personal financial, tax, insurance, legal or medical advice, and we cannot see or recover anything you entered into a calculator because it never reaches our servers. For personal advice please consult a licensed professional.

Corrections

If you spot a mistake, tell us the page, what you expected and what you saw. Verified corrections are made promptly.