Privacy Policy

Online Calculator Tools is a calculator website. You type in numbers, we do the math in your browser, you get results. We don't require an account. We don't store what you enter into our tools. We use Firebase Analytics (Google Analytics) to understand site traffic and Google AdSense to show ads - both of which use cookies. That's the gist of it. The full details are below.

We operate Online Calculator Tools at https://onlinecalculatorstools.com, a free website providing online calculators and converter tools. If you have any questions about this policy, you can reach us through our contact page.

We use cookies to make the site work and to support advertising. Here's a breakdown:

• Essential cookies: Needed for the site to function at all. You can't opt out of these without breaking things.
• Analytics cookies (Firebase Analytics / Google Analytics): These help us see which tools are popular, where traffic comes from, and how visitors move through the site. All data is anonymised - we see patterns, not individuals.
• Advertising cookies (Google AdSense): Google uses these to show ads that are more relevant to you based on your browsing history. You can opt out of personalised ads at Google Ads Settings.

You can set your browser to reject cookies or alert you before one is stored. Just know that some features may not work as well if you do.

Online Calculator Tools runs ads through Google AdSense to keep the site free. Google may use your browsing history - on this site and others - to show you ads it thinks are relevant to you. We don't control which specific ads appear, and we don't endorse any advertiser.

You can learn more about how Google uses data when you visit partner sites at Google's Privacy & Terms. Third-party ad networks may also place their own cookies, which we have no access to or control over.

To be specific, we use the data we collect to:

• Keep the website running and improve how it works.
• Understand how people use the site so we can add better tools and fix problems faster.
• Show ads through Google AdSense (which keeps the site free).
• Reply to messages or questions you send us.
• Diagnose technical issues when they come up.
• Meet any legal requirements that apply to us.

We do not sell, rent, or trade your personal information to anyone. Ever.

We don't hold on to data longer than we need to. Google Analytics data is retained for 14 months - that's the platform default, and it gives us enough history to spot trends without accumulating stale data. If you email us, we keep that conversation for up to 12 months after it's resolved, in case you follow up.

Online Calculator Tools is not designed for children under 13, and we don't intentionally collect data from them. If you believe a child has submitted personal information through our contact form, reach out and we'll delete it straight away.

Depending on where you are in the world, you have certain rights over your personal data. These typically include:

• The right to see what data we hold about you.
• The right to correct any information that's wrong.
• The right to ask us to delete your data (the "right to be forgotten").
• The right to restrict how we process your data.
• The right to receive your data in a portable format.

To exercise any of these, reach out through our contact page and we'll sort it out.

Some pages on Online Calculator Tools may link to external websites for reference. Once you leave our site, this Privacy Policy no longer applies. We don't control those sites and can't be responsible for their practices - so it's worth checking their privacy policies if that matters to you.

We'll update this page whenever our practices change. The date at the top tells you when it was last revised. We recommend checking back occasionally, but we'll always keep this page easy to find and easy to read.

Questions about this Privacy Policy? We're happy to explain anything that isn't clear:

• Contact Page: https://onlinecalculatorstools.com/contact