Knife Tools & Calculators
Free, instant, no sign-up. The same arithmetic our bench runs on every knife we buy, opened up so you can measure the one already on your board and see where it actually sits.
Wedge Ratio Calculator
Enter spine thickness and blade height at the same station and get the Wedge Ratio — the cross-sectional number that decides whether a blade falls through dense produce or splits it.
Open toolBevel Angle & Stone Setup
Turn a measured bevel width into the true angle on each side, compare it against the claimed figure, and work out the spine lift that holds it on a stone.
Open toolBalance Point & Handling
Weight, blade length and balance point in — how blade-forward the knife really is, and the pinch-grip moment behind how it feels, out.
Open tool