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Cookie Policy
Operated by MAFHH INTERNATIONAL LTD (OpsCalculators) · Last updated: September 2026
In short: We use a small number of cookies for essential functionality, anonymized analytics, and advertising. None of the values you enter into a calculator are ever stored in a cookie.
1. What cookies are
Cookies are small text files a website stores in your browser. First-party cookies are set by us; third-party cookies are set by services we use, such as Google. Some last only for your session; others persist for a set period.
2. We never store your calculator data in cookies
The operational and financial values you enter are processed on your device and are never written to a cookie, local storage, or our servers.
3. Cookies we use
| Cookie or service | Category | Purpose | Retention |
|---|---|---|---|
| Session cookie | Essential | Core site functionality and security | Session |
| Google Analytics (_ga, _gid) | Analytics | Anonymized usage statistics | Up to 2 years |
| Google AdSense (where shown) | Advertising | Ad delivery and frequency capping | Up to 13 months |
4. How to control cookies
You can opt out of personalized advertising at Google My Ad Center (myadcenter.google.com) and the Digital Advertising Alliance (optout.aboutads.info), and opt out of Google Analytics with the browser add-on at tools.google.com/dlpage/gaoptout. You can also block or delete cookies in your browser settings. All calculators work with analytics and advertising cookies disabled.
5. Changes and contact
We update the date above when this policy changes. Questions? Email support@opscalculators.com.
Related pages
Operator: MAFHH INTERNATIONAL LTD · Website: opscalculators.com · Contact: support@opscalculators.com · Last reviewed: September 2026.