How we use browser storage
Essential storage records privacy choices and useful interface preferences. Optional analytics helps us understand aggregated page use; optional advertising can support the service. These integrations are disabled by configuration unless the site owner enables them.
Your choice
Where the consent banner is active, optional scripts do not load until you accept them. Choosing “Essential only” leaves calculators available. Use the cookie preferences control to change your choice, or clear site data in your browser.
Last updated: September 10, 2026