--- slug: what_size_chefs_knife_to_buy category_path: home_kitchen/kitchen_dining/cutlery_knife_accessories/chefs_knives type: buying_guide title: "What Size Chef's Knife Should You Buy?" lead: "A 21 cm (8-inch) chef's knife — gyuto in Japanese — is the do-everything size for most home cooks: long enough to slice and rock-chop, short enough to keep control. Drop to 18 cm for small hands or a tiny board; step up to 24 cm only if you break down big produce and proteins often." recommendation: name: "A 21 cm (8-inch) chef's knife for most kitchens — 18 cm for small hands or boards, 24 cm for heavy prep" reason: "Blade length trades reach for control, and 21 cm sits at the balance point: it spans a cabbage or a melon in one stroke, has the belly to rock-chop herbs, yet stays short enough that a home cook keeps the tip in command. An 18 cm blade suits small hands, a compact board, or a cramped kitchen — safer to steer, if slower on big cuts. A 24 cm blade rewards people who regularly break down large vegetables, roasts, or watermelons, but it overhangs a small board and intimidates newer cooks. Size to your cutting board first — the blade should not overhang it — and to your hand; a longer knife you fear is worse than a shorter one you trust." published: 2026-07-08 updated: 2026-07-08 ---