Knife Sharpening Angles Explained (With Chart)

A knife sharpening angle stated as 20 degrees can mean two different edges. One number measures each side of the bevel on its own. The other measures the full angle where both sides meet.

A 20 degree edge measured per side is nearly twice as steep as a 20 degree edge measured inclusive. Manufacturers rarely say which one they mean. Zwilling’s own knife care page lists sharpening angles with no per side or inclusive frame at all.

It is far from the only brand that leaves this out. This mismatch is not a minor technicality. Sharpen a per side spec as if it were inclusive and you grind away far more metal than intended.

Do that and you change the whole edge geometry your knife was built around. Getting the frame right matters just as much as picking a number.

Per Side or Inclusive: The Trap Hiding in Every Angle Number

Per side means the angle from the centerline of the blade to one face of the bevel. Inclusive, sometimes called total or full angle, is both sides added together. A 15 degree per side edge is a 30 degree inclusive edge.

Victorinox describes its honing angle as between 30 and 40 degrees, with no statement of which frame that is. Read one way, that is a moderate kitchen edge. Read the other way, it is closer to a cleaver.

Zwilling’s guidance sits in the same gap. The page gives numbers for its own knives and separate numbers for its Santoku, Miyabi, and Kramer lines. Neither set of numbers says per side or inclusive.

One brand does state its frame clearly. Wusthof lists its PEtec edge as 14.5 degrees per side, in plain writing. It even compares that figure directly against competing edges using the same per side language.

Shun’s own sharpening page never gives a sharpening angle in degrees at all. It describes only the honing steel’s built in 16 degree angle guide. That single number has spread online as “Shun sharpens at 16 degrees,” a claim the official page does not actually make.

None of this means the brands are hiding something. It means the industry has never agreed on a shared way to state a sharpening angle. A smart shopper checks the frame before trusting any single number.

Knife Sharpening Angle Chart by Knife Type

The chart below lists typical ranges by knife type, alongside a few specific brand figures for comparison. Rows marked as community consensus come from experienced sharpeners comparing notes, not a lab measurement. Rows with a stated source reflect exactly what that source says, ambiguity included.

Knife Type	Typical Angle	Inclusive Equivalent	Source and Notes
Japanese kitchen knives (general)	About 15 degrees per side	About 30 degrees	Community consensus range; confirm against your specific maker
Western and German kitchen knives (general)	About 20 degrees per side	About 40 degrees	Community consensus range, not an official spec
Wusthof PEtec edge (specific product line)	14.5 degrees per side	About 29 degrees	Wusthof states this figure explicitly as per side
Zwilling knives (general use and care guidance)	About 15 degrees, blade to steel	Not stated	Zwilling never specifies per side or inclusive
Santoku, Miyabi, and Kramer by Zwilling knives	9 to 12 degrees	Not stated	Same source, same ambiguity
Hard steel knives, roughly RC58 and above	15 degrees per side	About 30 degrees	Community consensus range
Softer steel or fixed blade knives	20 degrees per side	About 40 degrees	Community consensus range
Pocket and EDC knives (general)	15 to 20 degrees per side	30 to 40 degrees	Community consensus range
Cleavers and choppers	Up to 30 degrees per side	Up to 60 degrees	Community consensus range
Shun honing steel guide (not a sharpening spec)	16 degrees, built into the honing steel	Not applicable	Shun’s official page gives no sharpening angle in degrees

Treat the community rows as a starting range, not a rule. Steel type, factory grind, and how you actually use the knife all push the real number around.

Use this knife sharpening angle calculator to turn any of these ranges into a real hand position. Blade height changes how a given angle translates to a marker line or a spacer height. A calculator beats guessing every time.

Why the Numbers Do Not Match From Brand to Brand

Wusthof argues that a smaller angle cuts more easily. Its own PEtec edge is ground thinner than most Western factory edges. That claim lines up with basic geometry, since a narrower angle meets the material with less steel behind it.

The tradeoff is durability. A thin edge cuts effortlessly but rolls or chips faster under hard use. That is especially true against a cutting board that fights back or a stray bone.

Community rules of thumb have not fully caught up to newer, thinner factory edges either. Forum consensus still puts Western kitchen knives around 20 degrees per side. At least one major maker now ships closer to 14.5.

Neither number is wrong. They describe different products built around slightly different priorities. A specific knife’s actual ground angle always beats a general rule.

What Angle Should You Actually Use?

Start with the knife’s original angle whenever you can find it. Matching what the maker ground in keeps the edge geometry consistent every time you sharpen.

Steel hardness matters more than knife type alone. Harder steel, roughly RC58 and up, holds a thinner edge without rolling. 15 degrees per side is a common starting point for that steel.

Softer steel or a fixed blade built for harder use does better with more metal behind the edge. 20 degrees per side is the usual community starting point there.

The job matters too. A knife that only slices vegetables can run a lower angle than one that occasionally hits a knot in rope or a stray staple.

Consistency matters more than precision. A blade sharpened at a steady 18 degrees every time will outcut one that wanders between 15 and 22 degrees. Wandering angle, not the exact number chosen, is what actually ruins most home sharpening jobs.

Microbevels: The Practical Shortcut

A microbevel is a second, slightly steeper edge ground onto the very tip of a lower angle primary bevel. It gives you a thin edge for cutting and a tougher edge for durability at the same time.

Experienced forum sharpeners favor a thin primary bevel with a 15 to 20 degree per side microbevel added on top. One long time sharpener found that a 17 degree microbevel held a polished edge noticeably longer than 15 degrees. He felt no real difference in cutting compared to 20 degrees.

Adding a microbevel takes only a few light strokes at the steeper angle. Do it after the main bevel is already set. It is one of the fastest ways to add durability without giving up much cutting performance.

How to Find and Hold Your Knife Sharpening Angle

The marker trick is the most reliable free method. Color the bevel with a permanent marker, take a few light strokes, then check where the ink wears off first.

If the ink disappears right at the edge, your angle is too low for that stroke. If it wears off up near the shoulder of the bevel instead, your angle is too high.

The halving method works well for an unknown angle on a plain kitchen knife. Lay the blade flat against the stone at 90 degrees, then halve that to 45. Halve again to roughly 22 degrees, a starting point that suits most German style knives.

Wedges cut to a specific angle, such as 15, 20, or 22 degrees, give you something physical to rest the spine against while you learn the feel. Some sharpeners use a stack of coins instead. The knife community actively disputes that trick, since the result shifts with blade height and where the coins sit.

A steadier version of the same idea uses simple trigonometry. The sine of the angle equals the spacer thickness divided by the blade height. Our angle calculator built around that math turns it into a spacer height or a hand position you can repeat.

Guided systems remove most of this guesswork by clamping the blade at a fixed angle for you. A dial setting does not always match the true angle at the stone, though. Resting a small angle cube on the clamp arm confirms what the system is actually delivering.

If you would rather learn the fundamentals first, our step by step guide to sharpening a knife covers the burr, the stone progression, and stroke technique this article assumes you already know.

Kitchen Knives, Pocket Knives, and the Angles Each One Needs

Kitchen knives usually run the lowest angles on the chart above, since thin slices through soft food are the whole point. Our kitchen knife angle guidance covers Japanese versus Western geometry in more depth than fits here.

Pocket and EDC knives carry a wider angle on purpose, since they cut rope, cardboard, and the occasional stray staple. Our guide to sharpening an EDC folder walks through angle choice for daily carry use specifically.

Whichever knife you own, matching its angle beats chasing someone else’s favorite number. Consistency at your chosen angle will always outcut inconsistency at the “correct” one.

Frequently Asked Questions

Is Shun’s sharpening angle really 16 degrees per side?

Shun’s own sharpening page does not give a sharpening angle in degrees at all. The 16 degree figure comes from the honing steel’s built in guide, not from a stated sharpening spec. “16 per side” is community lore rather than an official number.

Does a knife maker’s angle ever go unstated as per side or inclusive?

Yes, and it happens often. Some care pages list a number with no frame at all, the earlier Zwilling example included. That is exactly the ambiguity this article opens with.

Does one degree of difference actually matter?

Not in any way you could feel by hand. Consistency across the whole edge matters far more than hitting an exact number within a degree or two.

What knife sharpening angle should I use if I do not know the original?

Try the marker trick first to find the existing bevel on the blade itself. If that fails, 15 degrees per side is a reasonable Japanese style starting point. 20 degrees per side suits most Western kitchen and pocket knives.

Why do cleavers use such a wide angle?

A cleaver is built to chop through bone and cartilage, not just slice soft food. A wider angle, up to 30 degrees per side, puts more steel behind the edge. That extra steel is what lets it survive that kind of impact.

Can I use different angles on the same knife?

Yes, that is essentially what a microbevel does. A lower angle primary bevel handles most of the cutting, while a slightly steeper microbevel at the very edge adds durability.

Browse our sharpening basics category for more foundational guides like this one. If bevel geometry interests you beyond knives, our guide to sharpening an axe covers a very different angle range built for chopping instead of slicing.