Privacy and local storage

This calculator is operated by Daniel Kam. You can contact Daniel through danielk.am.

Your calculator entries

Calculations run in your browser. Calculator labels, prices, quantities and budget are not submitted to this website. Entries remain in the current page until you reset, leave or reload it. The calculator does not save them in browser storage.

Public calculator use does not require an account. Avoid personal or sensitive information in purchase labels, especially on a shared device.

Website access and cookies

The hosting infrastructure may process your IP address, requested URL, browser information and access time to serve and secure the website. These requests do not include calculator inputs. WordPress administration uses necessary sign-in cookies. Public calculator use does not require an account.

No analytics or advertising network is enabled. Product images load from Shopee image servers, which receive ordinary image requests including your IP address. Catalogue search terms and filters are sent to this website to search its stored listings; they are not sent to a language model. Offer data is refreshed on the server. Following an affiliate purchase link sends you to Shopee, where its own privacy and tracking practices apply. Calculator entries remain in your browser.

Catalogue preferences and saved lists

Where unit display preferences are available, they are stored locally in your browser. Signed-in users can keep a list of product IDs in browser storage; using that list sends those IDs to this site to retrieve the matching products. These features do not store calculator entries. Clear browser site data to remove local preferences and lists.