Privacy Policy

Last updated: 09 November 2026

Overview

This Privacy Policy explains how Calculatorza (“we”, “us”) handles information when you use this website. We designed the site to collect as little information as possible.

Calculations stay in your browser

All calculators run locally in your web browser using JavaScript. The numbers you type are not sent to or stored on our servers.

Exchange rates

The currency converter downloads daily exchange rates directly from ExchangeRate-API. Like any website, that service can see your IP address when your browser requests the rates. The amounts you convert are never sent anywhere. Rates are stored on your device for up to a day to keep the page fast.

Information you send us

If you contact us, your email app sends the message you write directly to our inbox. We use your name, email address and message only to reply to you, and we do not sell or share them.

Server logs

Like most websites, our hosting provider may automatically record standard technical information such as IP address, browser type, pages visited and the time of the visit. This is used for security and to keep the site running reliably.

Cookies and local storage

The site does not need cookies to work. A few calculators remember your choices — such as your currency, DEG/RAD setting or scientific calculator history — using your browser's local storage. This stays on your device, is never sent to us, and you can clear it at any time in your browser settings.

Advertising and affiliate links

Some pages show banners and links that may be advertisements or affiliate links. If you click one, the advertiser or affiliate network may set its own cookies or record that the visit came from our site so the referral can be credited. Their use of your data is covered by their own privacy policies. See our Affiliate Disclosure.

If we add analytics or ad services (for example Google Analytics or Google AdSense), those third parties may use cookies to measure traffic or show relevant ads, and we will update this policy. You can block or delete cookies through your browser settings.

Children's privacy

The site is suitable for students and does not knowingly collect personal information from children.

Changes and contact

We may update this policy from time to time; the date at the top shows the latest version. Questions? Contact us at help@calculatorza.com.