Privacy
Your information.
Know what happens to it.
How this website handles your calculations and question drafts.
Calculations
Tool inputs are processed in your browser. They are not automatically saved and reset when you leave or reload the page. Downloaded copies are saved where you choose on this device.
Saved question drafts
When you consent and choose Save, one draft is stored in this browser on this device. Saving again replaces the previous copy. It remains until you delete it or clear browser data. Others using this browser may be able to read it.
Email and external links
Opening an email draft passes your question to your email app. You decide whether to send it. Source links open other websites with their own policies. This site uses no analytics or advertising cookies.