Information we collect
You can use the calculators without creating an account. Calculator inputs are used to produce the result shown on the page. Do not enter sensitive personal, financial, medical, legal, account, or identification information unless a future calculator explicitly asks for it and explains why.
If you contact Online Calculators, we may receive the information you choose to send, such as your email address, message, calculator URL, entered example values, screenshots, or source links.
Logs, cookies, analytics, and ads
Like most websites, hosting infrastructure may process basic technical information such as IP address, browser type, device information, requested URL, referrer, and timestamps for security, debugging, performance, and abuse prevention.
The current calculator experience does not require an account. If analytics, advertising, or non-essential cookies are enabled, they should be disclosed in the production privacy controls and handled according to applicable consent requirements.
How we use and share information
We use information to operate the site, calculate results, respond to messages, fix bugs, improve accessibility, prevent abuse, and review source or formula corrections.
We do not sell calculator inputs. We may share information with service providers that help host, secure, measure, or operate the site; with authorities when required by law; or as part of a business transfer if the site ownership changes.
Retention, rights, and choices
Calculator entries shown in your browser are not intended to be long-term account records. Contact messages and operational logs are kept only as long as reasonably needed for support, security, legal, and operational purposes.
Depending on where you live, you may have rights to access, correct, delete, restrict, or object to certain processing of personal information. To make a privacy request, email [email protected].
We do not knowingly target children with account-based services. If you believe a child provided personal information through a contact channel, contact us so it can be reviewed.
Security and international use
We use reasonable technical and organizational measures to protect the site, but no internet service can guarantee absolute security. Avoid entering sensitive information into calculator fields.
The site may be accessed from different countries, and service providers may process technical information in locations outside your country. We update this policy when material privacy practices change.