How to choose a chef knife
A chef knife does most of the work in a kitchen, so it is the one worth choosing with care. Here is what to look at, in order, with the figures from 1,038 chef knife listings surveyed in the United States.
Contents
Start with the length
Length decides how the knife feels more than anything else. Most shops agree on the answer: 45 % of the chef knives we surveyed in the United States measure 20 to 21 cm (8 inches). That size clears a large onion in one stroke and still fits a home cutting board.
Go shorter, around 18 cm, if your board is small or you prefer a lighter, more nimble blade. Go to 24 cm if you cook in volume, break down large vegetables or want long slicing strokes. Longer than that is a professional tool that needs counter space.
| Blade | n | Median | Middle half |
|---|---|---|---|
| 18 cm and under (7 in) | 223 | $169 | $70 – $237 |
| 20 to 21 cm (8 in) | 427 | $210 | $146 – $337 |
| 22 to 25 cm (9 to 10 in) | 234 | $310 | $216 – $432 |
| 26 cm and over | 56 | $173 | $129 – $238 |
Damascus chef knives, United States, 14 November 2026.
Length also moves the price. The table shows the median for each length group, so you can see what the extra centimetres cost.
Look at the profile of the edge
Lay the knife on its edge, in a photo or in your head. A curved belly from heel to tip suits a rocking cut, where the tip stays on the board. A flatter edge with a lower tip, the profile often sold as gyuto, suits push cuts and long pulls. Neither is better. Pick the one that matches how your hand already moves. The three cutting motions are animated on their own page.
Ask what the core is made of
On a damascus knife, the patterned sides are cladding. The edge is ground from a single core steel, and that steel decides how sharp the knife gets and how long it stays that way. 65 % of the listings in our survey name it. When a listing does not, you cannot compare it with anything.
For a first good knife, a stainless core at 60 to 61 HRC is the easy choice: VG10, AUS-10 or 10Cr15CoMoV all sit there. They take a fine edge, resist rust and forgive a little neglect. Powder steels such as SG2 hold an edge longer and cost more. The guide to core steels compares them with prices.
Read the hardness as a trade
Hardness is given in HRC. Under 58, the edge rolls quickly and wants frequent honing. From 60 to 62, it holds a thin angle for weeks of home cooking. Above 62, it stays sharp longer still, but the edge is less tolerant of bones, frozen food and twisting. Harder is not better. It is a different balance between keeping an edge and surviving abuse. The sharpening angle tool shows how hardness and angle go together.
Do not count layers
55 % of listings state a layer count, and the figure you will meet most often is 67. Layers make the pattern. They do not make the cut. A 67-layer blade with an unnamed core tells you less than a 33-layer blade with a named one. If the pattern itself is what you are paying for, check that it is real: see real damascus or laser pattern.
Hold it, or read the handle line
Two families exist. The Western handle is contoured, often riveted, with weight toward the hand. The straight octagonal or oval handle is lighter and shifts the balance toward the blade. For materials, G10 and pakkawood shrug off water. Stabilised wood and resin look richer and ask only that you dry them. Natural wood wants a drop of oil now and then.
A 20 cm chef knife usually weighs 150 to 220 g. If you hold the blade between thumb and forefinger just in front of the handle, the knife should not tip hard either way.
Know what the middle of the market charges
The median damascus chef knife in the United States is listed at $206. Half of all listings fall between $129 and $330. Below that band, read the listing closely and make sure the core steel is named. Above it, you are paying for a powder steel, hand finishing or the name on the blade, and it is fair to ask which one.
Every listing behind those figures is on the chef knife price page. The chef knife ranking sorts them by what you get for the money.
The checklist
- Length: 20 to 21 cm unless you have a reason.
- Profile: curved to rock, flat to push.
- Core steel: named, in writing.
- Hardness: 60 to 62 HRC for home cooking.
- Handle: a material you will not have to baby.
- Price: compared with the median for the same type, not with a crossed-out price.
Then keep it sharp
Wash it by hand and dry it at once. Cut on wood or plastic, never on glass or stone. Store it on a magnet bar or in a guard, not loose in a drawer. Touch up the edge on a fine stone when it stops gliding through a tomato skin. Kept that way, a good chef knife lasts decades.