Home › Privacy Policy
Last updated: 1 January 2026
Your privacy matters to us. This Privacy Policy explains what information Calculatorzy.net collects when you visit our website, how we use it, and what rights you have. We have written it in plain language so it is easy to understand — no legal jargon, no hidden clauses.
If you are in a hurry, here is what you need to know:
Calculatorzy.net is a free online calculator website operated since 2018. Our website is located at https://calculatorzy.net. We provide free calculators covering finance, health and fitness, mathematics and general-purpose calculations.
If you have any questions about this Privacy Policy or how we handle your data, you can contact us at any time at hello@calculatorzy.net. We aim to respond within two business days.
We only receive personal information that you voluntarily provide to us. This currently means email correspondence — if you send us a message at hello@calculatorzy.net, we receive your email address and the content of your message. We use this solely to reply to you and do not add you to any mailing list or share it with anyone else.
All calculations on Calculatorzy.net are performed locally in your web browser using JavaScript. The numbers, dates and other values you enter into our calculators are never transmitted to our servers. They exist only in your browser session and are discarded when you close or refresh the page. We have no access to, and do not store, any data you enter into a calculator.
Like most websites, our web server automatically records certain standard technical information when you visit a page. This may include your IP address, browser type, operating system, the page you visited, the page you came from (referrer) and the date and time of your visit. This data is used solely for security monitoring and diagnosing technical problems. It is not linked to any personal identity and is routinely deleted after a short retention period.
We use privacy-focused analytics to understand how visitors use our site in aggregate — for example, which calculators are most popular, which countries our visitors come from and which devices they use. This data is fully anonymised. We cannot identify you individually from analytics data, and it is not shared with advertisers or data brokers.
A cookie is a small text file that a website stores on your device. Cookies are commonly used to remember your preferences or to track your behaviour across the web.
Calculatorzy.net uses only the minimum cookies necessary to operate the website correctly. We do not use advertising cookies, third-party tracking cookies or cookies that build a behavioural profile of you across websites.
The cookies we may set include:
You can control and delete cookies through your browser settings. Most browsers allow you to refuse all cookies, accept only certain types or delete existing cookies. Disabling cookies will not prevent you from using our calculators, as they do not depend on cookies to function.
For guidance on managing cookies in your specific browser, visit the help section of your browser's website or a resource such as www.allaboutcookies.org.
We use the limited information we collect for the following purposes only:
We do not use your information for advertising, profiling, automated decision-making or any purpose not listed above.
We do not sell, rent, trade or otherwise transfer your personal information to any third party. We do not share your data with advertisers, data brokers, marketing platforms or any commercial partners.
We work with a small number of trusted third-party service providers who help us operate the website — for example, web hosting and server infrastructure providers. These providers process data on our behalf only, under strict confidentiality obligations, and are not permitted to use it for their own purposes.
We may disclose information if we are required to do so by law, court order or a legitimate request from a government authority. We will always aim to notify you of any such request where we are legally permitted to do so.
We retain data only for as long as necessary for the purposes described in this policy:
Calculator inputs are never stored. They exist only in your browser session and are gone the moment you close or navigate away from the page.
Depending on where you live, you may have rights under data protection laws such as the UK GDPR, EU GDPR or similar legislation. These may include the right to:
Because we collect minimal data and do not track individual users, we are unlikely to hold personal data about you unless you have emailed us directly. To exercise any of the above rights, contact us at hello@calculatorzy.net and we will respond promptly.
If you are based in the UK or EU and believe we have not handled your data correctly, you have the right to lodge a complaint with your local data protection authority — in the UK, this is the Information Commissioner's Office (ICO) at ico.org.uk.
Calculatorzy.net is a general-purpose calculator website intended for use by people of all ages, including students. We do not knowingly collect personal information from children under the age of 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us at hello@calculatorzy.net and we will promptly delete it.
Our website may contain links to external websites for reference or informational purposes. This Privacy Policy applies only to Calculatorzy.net. We are not responsible for the privacy practices or content of any external site. We encourage you to review the privacy policy of any website you visit through a link on our pages.
We take reasonable technical and organisational steps to protect the limited information we do hold against unauthorised access, loss or misuse. Our website is served over HTTPS, which encrypts data in transit between your browser and our server.
However, no method of internet transmission or electronic storage is 100% secure. While we strive to use commercially acceptable means to protect your information, we cannot guarantee absolute security.
We may update this Privacy Policy from time to time to reflect changes in our practices, technology or legal requirements. When we do, we will update the "Last updated" date at the top of this page. We encourage you to review this policy periodically.
Continued use of Calculatorzy.net after any changes to this policy constitutes your acceptance of the updated terms. If you disagree with any changes, please stop using our website and contact us if you have concerns.
If you have any questions, concerns or requests relating to this Privacy Policy or how we handle your data, please contact us:
Website: https://calculatorzy.net
Email: hello@calculatorzy.net
Response time: within 2 business days
We take every privacy enquiry seriously and will do our best to resolve your concern quickly and transparently.
Calculatorzy.net is committed to protecting your privacy. We provide free online calculators for finance, health, mathematics and everyday use — with no sign-up, no personal data collection and no tracking. Your calculations stay in your browser, always.