Guide

In your browser menu, choose “Add to Home Screen” (mobile) or “Install” (desktop) to add Genba Dentaku as an app with a one-tap icon — no app store needed.

After your first visit the site is cached, so most calculators keep working without a connection. Great for job sites with poor signal. Tools that fetch live data (like weather) need a connection.

The page URL captures your current inputs. Bookmark it to return to the same calculation, or send the link to a colleague and they will see the same numbers.

Inputs are saved in your browser between visits, so you can pick up where you left off. Star a tool to add it to your favorites for quick access.

Every calculator can generate a clean PDF report of the inputs and results — print it or attach it to your project records.

Large tap targets, fast results, and a layout that works one-handed on a phone, so you can run the numbers right where the work is.