🔪 Knife Bevel Angle Calculator
Calculate bevel geometry, included edge angle, and stone spine lift from real knife dimensions, grind style, and steel-specific angle ranges.
📌 Presets
⚙ Bevel Inputs
🎯 Results
🗂 Steel Comparison Grid
📊 Reference Tables
| Steel | Typical HRC | Per-side range | Best fit | Microbevel note |
|---|---|---|---|---|
| AEB-L | 60-62 | 11-14 deg | Gyuto, petty | 0.5-1.5 deg if board contact is heavy |
| 14C28N | 58-60 | 12-15 deg | Fillet, utility | Usually optional on flexible blades |
| VG-10 | 59-61 | 13-16 deg | Santoku, chef | Helps against chipping on hard boards |
| X50CrMoV15 | 56-58 | 15-19 deg | German chef | 2 deg microbevel adds stability |
| 1095 | 57-59 | 12-15 deg | Scandi, field | Zero grind works if use is controlled |
| CPM S35VN | 59-61 | 16-20 deg | EDC | Microbevel is common for cardboard wear |
| CPM 3V | 59-61 | 15-19 deg | Camp knife | Bias durable over ultra-thin |
| White #2 | 61-63 | 14-18 deg | Deba, yanagi | Single bevel ura side stays nearly flat |
| Geometry | Thickness factor | Included multiplier | What the calculator assumes |
|---|---|---|---|
| Double bevel V | 0.50 | 2x | Each side carries half the stock reduction. |
| Single bevel | 1.00 | 1x | One bevel handles the full reduction. |
| Scandi zero | 0.50 | 2x | Primary bevel is the edge bevel with no secondary edge. |
| Convex equivalent | 0.45 | 2x | Straight-line approximation of a rounded shoulder. |
| Sabre edge bevel | 0.50 | 2x | Edge bevel only, not the full blade grind above it. |
| Blade height | 10 deg lift | 15 deg lift | 20 deg lift |
|---|---|---|---|
| 25 mm | 4.3 mm | 6.5 mm | 8.6 mm |
| 35 mm | 6.1 mm | 9.1 mm | 12.0 mm |
| 45 mm | 7.8 mm | 11.6 mm | 15.4 mm |
| 55 mm | 9.6 mm | 14.2 mm | 18.8 mm |
| Knife profile | Common angle | Typical bevel height | Reason |
|---|---|---|---|
| Gyuto | 11-14 deg | 8-13 mm | Thin food release and easy push cuts |
| German chef | 15-19 deg | 5-9 mm | More support for rocking and board taps |
| Petty | 12-15 deg | 5-8 mm | Fine tip work with low edge resistance |
| Fillet | 12-14 deg | 4-7 mm | Low drag through fish and soft tissue |
| Deba | 15-18 deg | 9-14 mm | Single bevel strength for fish breakdown |
| EDC | 16-20 deg | 2-5 mm | Daily utility and edge retention in grit |
| Bushcraft | 12-15 deg | 8-12 mm | Controlled carving with simple field touch-ups |
| Camp knife | 15-19 deg | 4-8 mm | Balances slicing with impact durability |
💡 Shop Notes
This calculator turns blade thickness, bevel height, and steel choice into realistic sharpening angles. Use it to compare kitchen, field, and EDC edge geometry before you thin or microbevel.
Bevel geometry are important in the sharpening of knives because the geometry of the bevel on a knife determine in what way that knife interact with the food that it cut. Bevel geometry involve the angle of the knife’s edge relative to the thickness and height of the bevel of that knife. Each of these factors must be understand in order to properly sharpen a knife according to the intended tasks of that knife and the properties of its steel.
One of the factors to consider in relation to bevel geometry is the angle of the knife’s edge. The angle of that knife edge will impact the amount of steels that the knife removes during the cutting process. If a knife is tall relative to the thickness of the steel that is removed from the knife, the angle of the knife will be relatively shallowly.
How Bevel Shape Affects Knife Sharpening
Shallow angles allows for the knife to more easily perform slicing tasks with thinner vegetable. However, knives with such shallow angles may have a fragile edge, which can roll or chip if the knife is encounter hard steel or cutting boards. The properties of the knife’s steel also impact the angle of it’s knife edge.
For instance, knives with fine-grained stainless steel blade are able to maintain their edges with relatively shallow angle, as the fine-grained stainless steel is tough and contain small carbide that distribute the force of the cutting task evenly. In contrast, knives with wear-resistant steel are likely to have steeper angles to their knife edges, as the steel is designed to wear down less readily. The style of grind of the knife also impact the way in which the knife remove steel.
For instance, knives with a double bevel will remove steel from both sides of the knife, creating a symmetric blade. A chisel knife will remove steel from only one side of the knife, doubling the thickness drop of the blade. Additionally, convex blade have rounded shoulders, and knives with a Scandi grind have their entire bevel as the knife edge, eliminating the need for a micro-bevel.
Micro-bevels is small angles added to the apex of the main bevel of the knife to increase the durability of the knife. A micro-bevel will introduce one or two degree to the main angle of the knife, preserving its thin feel while increasing the strength of the edge. A micro-bevel may be avoided for knives require to have a laser-thin edge, but should of been added to knives that are likely to experience impact with another object.
The total included angle of the knife is the sum of the two angles of the blade’s bevel. The total included angle determine the strength of the knife’s cutting edge. If the total included angle is too obtuse, the knife will drag on the food that is being chop.
Conversely, if the total included angle is too acute, the knife edge will be likely to chip. Another factor in creating the bevel is spine lift… The action of lifting the spine of the knife off of the sharpening stone.
The amount of spine lift that is required to achieve a desired bevel angle for a knife is relate to the height of the blade itself; taller blade will require more spine lift than shorter blades. An additional factor to consider is the coverage percentage, or how much of the knife’s blade is covered by the bevel. The selection of a bevel geometry will depend upon the use for which the knife will be sharpened.
Knives used for fine food preparation will have thinner blade and knives that are to be used for more intense cutting will have thicker, more durably bevels. Additionally, knives new knife hobbyist sharpened will have a higher margin of safety in their bevel angles to prevent there knives from becoming too fragile. Common mistake when sharpening knives include measuring the height of the knife’s bevel from the wrong location.
Measuring from the wrong location will result in the knife having the wrong angle. Another common mistake is to forget to account for the thickness of the knife’s steel prior to the apex of the blade. If the sharpening of a knife do not account for this thickness, the knife will be weakened.
Finally, another common mistake is to ignore the profile of the knife; sharpening a knife with a heavy profile with the same effort as a thin knife will result in either a fragile or too-thick knife edge.
