Privacy Policy
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This Privacy Policy explains how Calculator handles information when you use this website or contact us. Calculator is owned and operated by Satyajit Debnath, who is the contact person for the information practices described here. For privacy questions and requests, email iamsatyajitdebnath@gmail.com.
Calculator inputs and browser storage
At a glance: the currently installed health calculators run on your device. Their calculation scripts do not upload your height, weight, age, pulse counts, or other entered values. No account is required. The homepage saves its calculation tape locally, and the site saves your theme preference. Contacting us by email shares the information you include in your message.
The homepage calculator evaluates calculations in your browser. Its calculation code does not send your entered expressions, bill amounts, or conversion amounts to us. It stores up to 100 recent calculations under lumina-calculation-tape-v1 in local storage and saves your color theme under calculator-hub-theme. Local storage belongs to this website in the browser and remains until you clear it, the browser removes it, or the relevant feature replaces it.
The installed health tools do not save a personal health profile or fetch a result from a remote calculation service. The Currency Converter requests exchange rates from Frankfurter. That request includes the selected currency pair and normal network information such as your IP address; the calculator applies the rate to your entered amount locally. Links to reference websites open a third-party page if you choose to follow them; those websites have their own policies. Do not enter confidential information into a calculator on a shared device.
Information you send by email
If you contact us, we receive your email address, the contents of your message, and any attachments or other information you choose to provide. We use that information to respond, investigate an issue, handle a request, or maintain relevant correspondence. The email service also processes messages under its own terms and privacy practices.
Hosting and technical information
When you access the website, hosting or security services may process standard request information, such as IP address, requested URL, browser information, referring page, and access time. This information can be used to deliver pages, maintain security, diagnose problems, and manage performance. Retention depends on the hosting service and its configuration. The current website code does not include a separate analytics tracker.
Advertising and Google AdSense
This website includes the Google AdSense advertising script. Ad availability and presentation depend on Google's review and the site's advertising settings. The current website code does not include a separate analytics tracker. The following explains the information practices that may apply when Google AdSense advertisements are served.
Third-party vendors, including Google, use cookies to serve ads based on a visitor's prior visits to this website or other websites. Google's advertising cookies enable Google and its partners to serve personalized ads based on visits to this and other sites on the Internet. Advertising providers may also process IP addresses, browser or device details, and ad interactions for ad delivery, measurement, and fraud prevention.
Google advertising cookies can allow Google and its partners to personalize advertisements using visits to this website and other websites. Learn about Google's practices in How Google uses information for advertising and its Privacy Policy. You can manage personalized Google advertising through My Ad Center. Participating third-party choices are also available through the Digital Advertising Alliance opt-out tool. Opting out of personalization does not necessarily remove advertisements.
For advertising, any required consent choices and information about the advertising providers used must be available on the published site. A privacy notice alone does not collect consent. Where a consent interface is provided, use it to manage or withdraw your choices; browser and provider settings offer additional controls.
Why information is processed and who may receive it
If additional advertising vendors are introduced, this policy will identify them and link to their privacy information and available opt-out controls. Calculator inputs are not used by the current calculation scripts to build advertising profiles.
Information may be processed to operate the site, remember requested preferences, answer messages, investigate defects, prevent misuse, or comply with legal obligations. Service providers such as the website host and email provider may process information for those purposes. Information may also be disclosed when legally required or when reasonably necessary to protect rights and security. If advertisements are enabled, advertising providers process data as described above and under their own policies.
Retention, security, and international processing
Browser information remains on your device until removed as described above. Correspondence is kept for as long as reasonably necessary to address the enquiry, maintain a relevant record, or meet applicable obligations. Provider records follow the provider's retention arrangements. No fixed retention period is promised for all types of information.
Internet transmission and electronic storage cannot be guaranteed to be completely secure. Hosting, email, or advertising providers may process information in countries different from your own. Avoid sending unnecessary sensitive information.
Your choices and privacy rights
To remove the homepage calculation tape, open History and choose Clear. To remove both the tape and your theme preference, clear this website's stored site data in your browser. Clearing storage in one browser does not remove data in another browser or delete emails already sent to us.
You can clear calculation history, remove browser site data, limit cookies through your browser, and choose what to include in an email. Depending on applicable law and the circumstances, you may have rights to access, correct, delete, restrict, or object to certain processing, request portability, or withdraw consent. Email iamsatyajitdebnath@gmail.com to make a request. Rights may be subject to verification and lawful exceptions; you may also contact your relevant privacy authority.
Children and external links
The site offers general-purpose tools and does not ask children to create accounts or submit personal profiles. If you believe a child has sent personal information that should be removed, contact us. External websites and advertisements have their own privacy policies; this policy does not control their practices.
Policy updates
We may update this policy when the site's features, providers, or practices change. The date at the top of this page identifies the latest revision. See also our Cookies Policy and Terms and Conditions.