Calculator Inputs: Processed in Your Browser Only
Our calculators (macro, TDEE, BMI, and calorie tools) run entirely in your web browser. The numbers you enter, such as age, weight, height, and activity level, are processed locally on your device to produce results. We do not transmit, store, or have access to your calculator inputs. When you close or refresh the page, that data is gone. We cannot see it, sell it, or share it, because it never reaches our servers.
Information We May Collect
We collect only a limited amount of information, and only for operating and improving the site:
- Log data: Like most websites, our hosting provider automatically records basic technical information when you visit, such as your IP address, browser type, device type, pages viewed, and the time and date of your visit. This is used for security, troubleshooting, and aggregate traffic analysis.
- Contact messages: If you contact us by email or through our contact form, we receive your name, email address, and the contents of your message so we can respond.
We do not collect names, addresses, payment details, or health records. We do not require accounts or sign-ups to use any calculator.
Cookies
We use cookies and similar technologies for the following purposes:
- Essential cookies: Required for basic site functionality, such as remembering your cookie consent choice.
- Analytics cookies: If we use a web analytics service (such as Google Analytics), it may set cookies to help us understand aggregate usage patterns, like which pages are popular. This data is anonymized where possible.
- Advertising cookies: We display ads served by Google AdSense and other third-party advertising partners. These partners may use cookies to serve ads based on your prior visits to this and other websites.
You can control cookies through your browser settings. Most browsers allow you to block or delete cookies, though blocking essential cookies may affect how the site works.
Google AdSense and Third-Party Advertising
We use Google AdSense to display advertisements. Google uses cookies, including the DoubleClick cookie, to serve ads based on your visits to our site and other sites on the internet. Google’s use of advertising cookies enables it and its partners to serve ads based on your visit to our site and other sites.
You may opt out of personalized advertising by visiting Google’s Ads Settings (https://www.google.com/settings/ads). Alternatively, you can opt out of some third-party vendors’ use of cookies for personalized advertising by visiting https://www.aboutads.info/choices/.
Third-party ad servers or ad networks may also use technologies such as cookies, JavaScript, or web beacons in their advertisements and links that appear on our site. We do not have access to or control over the cookies used by these third-party advertisers. We encourage you to review the privacy policies of these third parties for more information.
How We Use Information
Any information we collect is used only to: Operate, maintain, and improve the website and its calculators; Respond to your messages and questions; Detect and prevent abuse, fraud, or security issues; Comply with legal obligations. We do not sell, rent, or trade your personal information to anyone.
Data Sharing
We may share limited technical data (such as anonymized analytics or log data) with service providers who help us operate the site, including our hosting provider and analytics or advertising partners described above. These providers are bound by their own privacy policies and are permitted to use the data only as described here. We may also disclose information if required by law or to protect our rights, users, or the public.
Your Rights
Depending on where you live, you may have rights over your personal information, including the right to request access to, correction of, or deletion of data we hold about you, and the right to opt out of certain data uses. Because our calculators process everything in your browser and we store no calculator inputs, in most cases there is simply no personal data of yours for us to retrieve or delete. To exercise any applicable right regarding contact messages or other data, email us at contact@macrocalcu.com and we will respond within a reasonable time.
Children’s Privacy
Our site is intended for a general audience and is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal information, contact us at contact@macrocalcu.com and we will delete it.
Data Security
We take reasonable measures to protect the limited information we handle, including using HTTPS encryption for data transmitted between your browser and our servers. However, no method of transmission over the internet is completely secure, and we cannot guarantee absolute security.
Changes to This Policy
We may update this Privacy Policy from time to time. When we do, we will revise the effective date above. Continued use of the site after changes are posted constitutes acceptance of the updated policy. Effective date: October 8, 2026.
Contact Us
If you have questions about this Privacy Policy or our data practices, contact us at contact@macrocalcu.com.