£WebCalculator
● Privacy Policy · Last updated June 2026

Privacy Policy

This policy explains what information WebCalculator collects, how we use cookies and advertising, the choices you have over personalised ads, and your rights under UK data protection law.

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Who we are

WebCalculator (webcalculator.co.uk) is an independent UK calculator website operated by Mustafa Bilgic (the "data controller" for the purposes of UK data protection law). We can be contacted at [email protected]. This policy applies to information collected when you use this website.

We have written this policy in plain English because we want you to understand exactly how the site works. WebCalculator is funded by advertising, which keeps every tool free — and that advertising is the main reason we (and our partners) use cookies.

What data we collect

WebCalculator is designed to collect as little personal data as possible.

  • Calculator inputs. The numbers you type into a calculator — such as your salary, pension contribution or mortgage amount — are processed entirely in your own browser. They are not sent to us, not stored on our servers, and not linked to you.
  • Technical & usage data. Like most websites, our hosting and analytics may automatically receive standard information such as your IP address, browser type, device type, the pages you view and the site you arrived from. This is used to keep the site secure and understand which calculators are useful.
  • Advertising data. Our advertising partners (see below) may collect information through cookies and similar technologies to show and measure adverts.
  • Messages you send us. If you email us, we receive your email address and whatever you write, so we can reply.

We do not ask you to create an account, and we do not knowingly collect data from children.

Cookies and similar technologies

Cookies are small text files stored on your device. WebCalculator and its partners use them mainly to deliver and measure advertising, and to keep the site working. The main categories are:

  • Strictly necessary — needed for the site to load and function.
  • Analytics — help us understand, in aggregate, how the site is used.
  • Advertising — set by Google and other ad partners to select, deliver, cap and measure the adverts you see.

You can control or delete cookies through your browser settings, and you can opt out of personalised advertising using the links below. Blocking some cookies may affect how adverts are shown but will not stop the calculators from working.

Advertising — Google AdSense and other vendors

This site shows adverts to fund the free tools. Our advertising partners include:

  • Google AdSense. Google, as a third-party vendor, uses cookies to serve ads on this site. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this and other sites on the internet.
  • Adsterra and the third-party advertising networks it works with.

Third-party vendors, including Google, use cookies and device identifiers to serve ads based on your prior visits to this website and other websites. Google's use of advertising cookies is governed by Google's own privacy policy. Some adverts may be personalised based on your interests, while others are non-personalised and based only on the content of the page and general information such as your approximate location.

For more on how Google uses information from sites that use its services, see Google's "How Google uses information from sites or apps that use our services".

Personalised ads & how to opt out

You are in control of personalised advertising. You can:

Opting out of personalised ads does not remove advertising from the site — you will still see ads, but they will be less tailored to you.

EEA, UK & Swiss visitors: where required, our advertising partners obtain consent for the use of cookies and data for personalised advertising through an approved consent mechanism. You can change your consent choices at any time using the opt-out links above.

Under the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018, we rely on the following lawful bases:

  • Consent — for advertising and analytics cookies that are not strictly necessary.
  • Legitimate interests — for keeping the site secure, preventing fraud and understanding aggregate usage.

You have the right to access the personal data we hold about you, to request correction or erasure, to object to or restrict processing, and to withdraw consent at any time. To exercise any of these rights, email [email protected].

If you are unhappy with how your data has been handled, you can complain to the UK's data protection regulator, the Information Commissioner's Office (ICO), at ico.org.uk.

Data retention & security

We keep email correspondence only for as long as needed to deal with your enquiry. Technical logs are kept for a limited period for security and troubleshooting. Cookie lifetimes are set by each provider and described in their own policies. We take reasonable technical and organisational measures to protect the limited information we handle.

Changes to this policy

We may update this privacy policy from time to time — for example, if we add a new advertising partner or the law changes. The "last updated" date at the top of the page shows when it was last revised. Significant changes will be reflected here.

Contact us

For any question about this policy or your data, email [email protected] or visit our contact page. WebCalculator is operated by Mustafa Bilgic.