Privacy Policy

PH Calculator (phcalculator.net) is a free online tool that provides fast utility calculations for Filipino users. We are not a financial institution, data broker, or subscription service.

How we source formulas, stay independent of government agencies, and handle corrections is described on our editorial standards page.

You can use calculators without an account. Guest-mode calculations run in your browser; optional sign-up lets you save employees and payslip records on our servers when accounts are enabled. See our registration and login pages for what we store when you create an account.

Guest calculators. Many tools run in your browser. Preference fields may be stored locally on your device (for example via browser storage) so the page remembers inputs — this stays on your machine unless you choose to sign in.

Optional accounts. When accounts are enabled and you register or sign in, we process the information needed to operate that feature (such as email for login and data you save like employees or payslip records). See the registration and login pages for what is collected for accounts.

Third-party measurement and ads. With your cookie choices, Google Analytics may collect usage metrics and Google AdSense may use cookies or similar technologies for advertising. These providers may log technical data such as:

• Browser type and version
• Device type (mobile, desktop, tablet)
• Pages visited and time spent on each page
• Referring website or search query that brought you here
• General geographic location (country or city level only)

We use this information to improve the site and — where you consent — to fund the service through ads. Review Google's privacy materials linked below for how they process data.

PH Calculator uses cookies — small files stored in your browser — to help deliver a better experience and to show relevant ads. Cookies are set by us and by the third-party services we use.

Cookies on this site are used for:

• Displaying advertisements (Google AdSense)
• Collecting anonymous usage statistics (Google Analytics)
• Remembering user preferences where applicable

You can disable cookies in your browser settings at any time. Note that disabling cookies may affect how some parts of the site function.

We use the following Google services on this site:

• Google AdSense — displays ads on the site. Google may use cookies to show ads relevant to your interests based on your browsing history.
• Google Analytics — collects anonymous data such as page views, session duration, and device type to help us understand site usage.

These services are governed by Google's own Privacy Policy. We also publish an ads.txt file at our domain root listing authorized digital sellers for transparency.

We do not sell, rent, trade, or share your personal information with any third parties for their own marketing purposes. Any data collected is used solely to improve site performance and to serve relevant advertisements through Google AdSense.

The contact page can open your email app with a pre-filled message (mailto link). Any name, email address, or details you include are sent through your email provider — not submitted through a backend form on our servers for routine inquiries.

If you email us directly, we use your address only to reply to that conversation. We do not sell contact lists or use your message for unrelated marketing.

PH Calculator is a general-purpose utility tool and is not directed at children under 13 years of age. We do not knowingly collect personal information from children. If you believe a child has submitted personal data to us, please contact us and we will promptly remove it.

You have control over your data. Here is what you can do:

• Disable or clear cookies through your browser settings
• Opt out of personalized Google ads at adssettings.google.com
• Opt out of Google Analytics tracking using the Google Analytics Opt-out Browser Add-on

We may update this Privacy Policy from time to time. When we do, the "Last updated" date at the top of this page will reflect the change. We recommend reviewing this page periodically. Continued use of PH Calculator after any changes constitutes your acceptance of the updated policy.

If you have any questions or concerns about this Privacy Policy, please reach out to us at ocabafox@gmail.com.