The fast carpenter calculator for real site work.
ChippyCal is built for real jobs — fast metric & imperial conversions, run/rise calculations, framing layouts, and cut lists.
Coming Soon
Built for real site work
On real jobs, measurements are not always given in the system you want. You might be building from imperial drawings while buying materials in metric, or working with a team that mixes both.
ChippyCal helps you convert instantly and keep moving.
Instead of stopping to work out millimetres to feet and inches by hand, you can carry on measuring, cutting, and setting out without breaking workflow.
Core Features
Switch between mm and feet/inches instantly with proper fractions.
Quickly calculate diagonals for roofs, stairs, and framing.
Work out stud layouts, noggins, and cut lists without doing it in your head.
Why ChippyCal
Built by a carpenter, for carpenters. No clutter, no confusing menus — just the tools you actually use on site.
Get early access
Join the list for updates and launch access.
Coming soon to the App Store
ChippyCal is currently in testing. Full release coming soon.