Calculator data
Dimensions, weights, quantities and saved boxes are calculated in your browser. Local presets and history stay in browser storage until you clear them.
Sharing and analytics
Share state is stored after the # in the URL, which is removed from analytics page locations. In production, Google Analytics receives only stable tool and interaction labels—never shipment inputs, calculated values, free text or shared scenario data.
Analytics and advertising storage default to denied. You may allow anonymous analytics from the privacy choice shown on the site; advertising storage, Google Signals and ad personalisation remain disabled.