Your privacy is not an afterthought โ it's the foundation of OMCalculator. We built our platform with a simple principle: zero data collection, zero tracking, zero registration.
OMCalculator does not collect, store, or share any personal information. All conversion calculations happen locally in your web browser โ nothing is sent to our servers. We do not use cookies for tracking, do not create user profiles, and do not require accounts or registration.
We collect absolutely no personal data. Unlike most websites, OMCalculator does not:
The only exception is your dark/light theme preference, which is stored locally in your browser's localStorage. This is a simple true/false value that never leaves your device.
No tracking cookies. OMCalculator does not use analytics cookies, advertising cookies, or any third-party tracking cookies. We use only:
That's it. No session cookies, no persistent identifiers, no fingerprinting scripts.
All conversion calculations on OMCalculator happen entirely in your browser using JavaScript. When you enter a number into any converter:
You can verify this by disconnecting your internet and using any converter โ it will work perfectly because everything runs locally.
If you email us at support@omcalculator.com, we receive your email address and the content of your message. This is standard email communication. We do not:
You can request deletion of any email correspondence at any time by contacting us.
OMCalculator is supported by unobtrusive display advertisements and occasional affiliate links (clearly marked). Our ad partners (such as Google AdSense) may use cookies or similar technologies to serve relevant ads. However:
Affiliate links (e.g., to recommended storage products on Amazon) are standard hyperlinks with no tracking parameters that identify you personally.
Since we don't collect or store any user data, there is no data to secure or breach. Our website uses HTTPS encryption (TLS 1.3) to protect your connection, ensuring that no third party can intercept or modify the page content you receive.
OMCalculator is a general audience educational tool. We do not knowingly collect any personal information from children under 13. Because we collect no data from any users, COPPA requirements are inherently satisfied. Parents and teachers can confidently recommend our converters to students.
GDPR (Europe): We do not process or store personal data of EU residents. No consent is needed because no data is collected. Our only localStorage item (theme preference) is strictly necessary for functionality.
CCPA/CPRA (California): We do not sell or share personal information because we don't collect any. California residents have no data to request, delete, or opt-out of.
Other regions: Our privacy-first approach exceeds requirements in all jurisdictions.
Our pages may contain links to external websites (e.g., blog references, product recommendations). We are not responsible for the privacy practices of those sites. We encourage you to read their privacy policies before providing any personal information.
If we ever change this privacy policy, we will update the "Last Updated" date at the top of this page. Any changes will be minor and will never introduce data collection without prominent notice. You can review the complete revision history on GitHub.
If you have any questions about this privacy policy or our data practices, please contact:
Email: support@omcalculator.com
Mail: OMCalculator Privacy, PO Box 1234, Wilmington, DE 19801, USA
We typically respond within 48 hours (weekdays).
Most free online tools track your behavior, sell your data, or use invasive fingerprinting. We reject that model entirely. Our founders came from enterprise IT and cybersecurity backgrounds โ we've seen firsthand how user data is mishandled. We built OMCalculator the way we wished every tool worked: useful, accurate, and completely private.
Myth: "Incognito mode makes me anonymous." โ Incognito only prevents local history storage. Your ISP, employer, and websites can still see your activity.
Myth: "Free tools must collect my data to survive." โ OMCalculator survives on unobtrusive ads and affiliate links, not data sales. It's possible โ more sites should do it.
Myth: "I have nothing to hide, so privacy doesn't matter." โ Privacy is about control, not secrecy. It's the right to decide who knows what about you.
No. We do not run Google Analytics, Matomo, or any analytics platform. We have no idea how many pages you view or how long you stay โ by design.
We don't have any conversion data to sell. All calculations happen in your browser and are never transmitted to us.
Since we collect no data, there's nothing to delete. This is the ultimate expression of the "right to be forgotten."
We don't transfer any personal data across borders because we don't collect any personal data. No framework needed.
Our hosting provider may maintain standard server logs (requests, status codes, timestamps) for security and troubleshooting. These logs do not contain IP addresses (we've configured them to anonymize IPs) and are rotated every 7 days.
Yes! Our code is open for inspection. Use your browser's Developer Tools (F12) to check network traffic โ you'll see no data exfiltration. All JavaScript is static and does not call external APIs.
Verified: No data collection โข No tracking cookies โข Client-side processing โข HTTPS only โข No third-party sharing
Certified: This site has been audited for privacy compliance by independent security researchers. Audit report available upon request.