Effective 10 September 2026.
What you type
Measurements, prices, job names and notes are processed in your browser and are not sent to Bulk Math. Saved projects live in your browser’s local storage on that device; clearing site data removes them, and they are not visible to us. A backup file you download is yours and goes nowhere unless you send it.
Copy link puts the whole calculation into the address of the page. Anyone you send that link to can see it, and so can any service the link passes through, so do not put anything in a job name or note that you would not put on the envelope.
Analytics
The site uses Cloudflare Web Analytics, which counts page views and the country, browser and page they came from without cookies and without identifying you. It is aggregate only, and it is not shared with advertisers.
Hosting
Bulk Math is served by Cloudflare. Like any web host, Cloudflare receives your IP address and the pages you request in order to deliver them and protect the site from abuse, under Cloudflare’s privacy policy. The fonts are loaded from Google Fonts, which also receives a request from your browser.
Advertising
Bulk Math may show advertising served by Google AdSense. Google and its partners use cookies to serve ads based on prior visits to this and other sites, and may use the DoubleClick cookie for that purpose. You can opt out of personalised advertising at Google Ads Settings, and read how Google uses information from sites that use its services at policies.google.com. Bulk Math itself sets no advertising cookies and does not sell or share personal information.
Children
The site is not directed at children under 13 and does not knowingly collect anything from them.
Changes and contact
When this page changes, the effective date at the top changes with it. Questions go to the contact address.