Privacy Policy
Last updated: July 9, 2026
Calcowa ("we", "us", or "our") operates the website calcowa.com. This Privacy Policy explains what information we collect, how we use it, and the choices you have. By using Calcowa, you agree to the practices described here.
Who we are
Calcowa is a free collection of online calculators and converters, founded and run by Muhammad Younus. You can reach us any time at [email protected].
Information we collect
You do not need an account to use Calcowa, and the numbers you type into a calculator are processed in your browser. We do not store the values you enter. We do collect limited, standard information automatically when you visit, such as:
- Basic usage and device data (browser type, device, approximate region, and pages viewed), through analytics.
- Cookies and similar technologies, as described below.
Cookies and similar technologies
A cookie is a small file stored on your device. We and our partners use cookies to understand how the site is used and to support the advertising that keeps Calcowa free. You can control or delete cookies through your browser settings, and you can opt out of personalized advertising using the links below.
Analytics
We use Google Analytics to understand how visitors use the site so we can improve it. Google Analytics sets cookies and collects information such as pages visited and time on site in an aggregated form. Learn more in Google's Privacy Policy.
Advertising and Google AdSense
Calcowa is supported by advertising. We use Google AdSense to display ads. As a third-party vendor, Google uses cookies to serve ads based on your prior visits to this and other websites.
- Google's use of advertising cookies (including the DoubleClick cookie) enables it and its partners to serve ads to you based on your visit to Calcowa and other sites.
- Third-party vendors and ad networks may also use cookies to serve ads based on your interests.
- You can opt out of personalized advertising by visiting Google Ads Settings.
- You can opt out of many third-party vendors' use of cookies at aboutads.info/choices or, in the EU, youronlinechoices.eu.
For more detail, see how Google uses information from sites that use its services.
Your privacy rights
Depending on where you live, you may have rights over your personal data under laws such as the GDPR (Europe) or the CCPA (California), including the right to access, correct, or delete your data, and to opt out of personalized ads. To make a request, email us at [email protected]. We do not sell your personal information.
Consent for EU and UK visitors
Where required, our advertising and analytics partners request your consent for the use of cookies before serving personalized content. You can change or withdraw your consent at any time through the cookie controls provided.
Children's privacy
Calcowa is not directed at children under 13, and we do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us so we can remove it.
Data security and retention
We take reasonable measures to protect information collected through the site. Because calculations run in your browser and we do not require accounts, we hold very little personal data. Aggregated analytics data is retained only as long as it is useful for improving the site.
Changes to this policy
We may update this Privacy Policy from time to time. When we do, we will revise the "last updated" date at the top of this page. Significant changes will be highlighted where appropriate.
Contact us
If you have any questions about this Privacy Policy or your data, email [email protected].