Last updated: October 29, 2026
Calculator inputs
Calculator values are processed locally in your browser to display results. Calcora does not operate a backend that receives or stores those form values. Do not enter sensitive personal information into any calculator.
Theme preference
If you select a light or dark theme, the preference is stored in your browser's localStorage under the key calcora-theme. It is not an advertising identifier and is not transmitted to Calcora. You can remove it by clearing site data in your browser.
Optional live exchange rates
Only when you choose live-rate mode in the currency converter, your browser requests the selected base and quote currencies from Frankfurter (api.frankfurter.dev). The amount and manual rate are not included in that request. The provider may process standard network information such as your IP address under its own policies. Manual-rate mode avoids this request.
Contact messages
The contact form prepares a message in your own email application. The website does not submit the message to a Calcora server. If you send it, your email provider and the recipient mailbox process the information you choose to include.
Analytics, advertising, and cookies
This version has no analytics, advertising trackers, account system, or non-essential cookies. If that changes, this policy and any required consent controls should be updated before those services are enabled.
Your choices
You can use manual currency rates, avoid the contact form, clear local site data, or disable JavaScript. Disabling JavaScript prevents calculations and interactive filtering, but educational articles remain readable. Privacy questions can be sent to kkffggg167@gmail.com.