Privacy Policy
Last updated: July 2026
CalcMacros ("we," "us," or "our") operates the website calcmacros.com. This privacy policy explains what information we collect, how we use it, and your rights regarding that information.
Information We Do Not Collect
All calculations performed on CalcMacros are processed entirely in your browser. We do not transmit, store, or have access to any health data you enter into our calculators — including your age, weight, height, or body composition data. This data never leaves your device.
Information We Collect Automatically
We use Google Analytics 4 (GA4) to collect anonymous usage data, including:
- Pages viewed and time spent on each page
- Approximate geographic location (country/region level only)
- Device type and browser
- Referring website
- Calculator interaction events (e.g., "calculator completed") — no input values are recorded
This data is anonymized and aggregated. It is used solely to understand how the site is used so we can improve it.
Cookies
We use the following cookies:
- Google Analytics cookies (_ga, _gid): Anonymous analytics. Expire after 2 years and 24 hours respectively.
- Preference cookie (unit): Stores your metric/imperial unit preference in localStorage. Not transmitted to any server.
Google AdSense
CalcMacros displays advertisements served by Google AdSense. Google may use cookies to serve ads based on your prior visits to websites. You can opt out of personalized advertising by visiting Google Ads Settings.
Third-Party Services
We use the following third-party services:
- Google Analytics — anonymous usage analytics
- Google AdSense — display advertising
- Cloudflare — website hosting and security
- Google Fonts — typography (Inter and JetBrains Mono)
Your Rights
You can opt out of Google Analytics tracking by installing theGoogle Analytics Opt-out Browser Add-on. You can clear or block cookies through your browser settings at any time.
Children's Privacy
CalcMacros is not directed to children under the age of 13. We do not knowingly collect personal information from children.
Changes to This Policy
We may update this privacy policy from time to time. Changes will be reflected by updating the "last updated" date at the top of this page.
Contact
Questions about this privacy policy? Contact us athello@calcmacros.com.