Grinding Calculator
Calculate precise grinding angles for your knife based on dimensions and grind type
📊 Grinding Results
Cross-Section Visualization
Ready to calculate your grind?
Enter your knife dimensions on the left and click "Calculate Grind" to see detailed results.
Which grind should I choose?
The grind decides how the knife cuts, how strong the edge is, and how easy it is to maintain. There is no single "best" grind — it depends on what the knife is for. Expand any type to read more.
Flat grind (V-grind)
The classic: a straight taper from spine to edge. Strong, easy to sharpen, and an excellent all-rounder for kitchen and everyday knives. Start here if you're unsure.
Hollow grind
Concave sides ground on a wheel. Produces a very thin, keen edge and a superb slicer — but the thin edge is less durable under hard use. Seen on razors and hunting knives.
Convex grind
A rounded, "apple-seed" shape. Extremely strong behind the edge — the pick for choppers, axes and hard-use blades. Harder to sharpen freehand, but it takes a beating.
Scandi grind
A single low, wide bevel with no secondary edge. Loved by bushcrafters for woodwork — easy to maintain on a stone and it bites into material.
Edge angle in short: a lower angle is sharper but more fragile; a higher angle is more durable but less keen. The calculator shows you the exact angle for your measurements.