Can You Carry a Knife in Florida? Blade Limits and Penalties

Yes, you can carry a knife in Florida, and the rules are more permissive than most people assume. Almost every type of knife is legal to own, and since July 1, 2023, adults 21 and older can carry knives concealed without a license. The only knife Florida flatly bans is the ballistic knife. The rules that actually catch people out involve age, where you’re carrying, and whether your knife legally counts as a “weapon” in the first place.

What Florida Counts as a Weapon

Florida knife law turns on one definition. Section 790.001 defines a weapon as any dirk, knife, or other deadly weapon, but explicitly excludes a “common pocketknife,” a plastic knife, and a blunt-bladed table knife.1The Florida Legislature. Florida Statutes 790.001 – Definitions If your knife falls outside the “weapon” definition, most of the restrictions in Chapter 790 simply don’t apply.

A “dirk” in Florida case law means any straight, non-folding knife capable of causing death. That sweeps in fixed-blade knives — hunting knives, combat knives, kitchen knives carried on the person. Folding knives are a separate question and depend on whether a court would call the knife a “common pocketknife.”

The Four-Inch Pocketknife Line

In the 1997 case L.B. v. State of Florida, the Florida Supreme Court defined a common pocketknife as a knife that occurs frequently in the community and has a blade that folds into the handle. The court cited a 1951 Attorney General opinion treating a folding knife with a blade of four inches or less as “common.” That four-inch mark isn’t a hard statutory cutoff, but courts treat it as a strong presumption. A folding knife with a blade of four inches or less is almost certainly a common pocketknife. A longer folder doesn’t automatically get that protection.

Practically, that means if you carry a standard folding knife under four inches, Florida doesn’t treat it as a weapon at all. You can carry it openly or concealed, at any age, without a permit. Once you move to a fixed blade or a longer folder, you’re carrying a “weapon” and the rules below apply.

Concealed Carry Since July 2023

This is the area where outdated information still circulates. On July 1, 2023, House Bill 543 extended Florida’s permitless concealed carry to knives, not just firearms. The statute’s definition of “concealed weapon or concealed firearm” explicitly includes knives.2Florida Senate. CS/HB 543 Concealed Carry of Weapons and Firearms Without a License

Before HB 543, carrying a concealed weapon-class knife without a license was a first-degree misdemeanor. Now, if you’re 21 or older and not otherwise prohibited from possessing weapons (no disqualifying felony convictions, no domestic violence injunctions), you can carry a knife concealed with nothing on paper. Two conditions: carry valid ID, and show it to law enforcement on request.

If you’re between 18 and 20, you cannot carry a concealed weapon-class knife on your person. Active-duty military and honorably discharged veterans may qualify for an age exemption. Everyone else in that age bracket is limited to common pocketknives for concealed carry, or open carry of larger knives.

The Section 790.06 concealed weapons license still exists and is still useful. It gives reciprocity in other states that recognize Florida permits and can speed up firearms background checks.3Official Internet Site of the Florida Legislature. Florida Statutes 790.06 – License to Carry Concealed Weapon or Firearm If you travel out of state with a knife, the license can keep you clear of another state’s concealed carry rules.

Open Carry

Florida has no statute prohibiting the open carry of knives. Unlike firearms, where open carry is heavily restricted, you can openly carry a fixed-blade knife, a large folder, or a machete in most public places without a license and without the age 21 floor that applies to concealed carry. Context still matters. A sheathed hunting knife on a campground draws no attention; the same knife on your hip at a shopping mall could prompt a police response under separate statutes about threatening behavior or breach of the peace.

Switchblades Are Legal; Ballistic Knives Are Not

One of the most persistent misconceptions is that switchblades are illegal in Florida. They aren’t. Florida has never restricted automatic knives or switchblades. You can own them, carry them openly, and, if you’re 21 or older, carry them concealed under the same permitless framework that covers other knives.

Ballistic knives are the one truly banned category. Section 790.225 makes it illegal to manufacture, sell, own, possess, or use a ballistic self-propelled knife, defined as a device that propels a blade as a projectile using a spring, elastic material, or compressed gas, physically separating the blade from the handle.4Florida Senate. Florida Code 790.225 – Ballistic Self-Propelled Knives A switchblade opens by pressing a button. A ballistic knife launches its blade across a room. Conflating the two is why people think switchblades are banned when they aren’t.

Places You Cannot Carry a Knife

Regardless of your age, license status, or knife type, some places are off-limits. Carrying a weapon-class knife into one of these locations can turn a lawful carrier into a felon.

Schools

Section 790.115 has two layers. Possessing any weapon (including razor blades and box cutters, though not common pocketknives) on school property, at a school-sponsored event, or on a school bus is a third-degree felony.5Florida Senate. Florida Code 790.115 – Possessing or Discharging Weapons or Firearms at a School-Sponsored Event or on School Property Prohibited Separately, displaying any weapon — and this layer specifically includes common pocketknives — in a rude, threatening, or careless manner at or within 1,000 feet of a school during school hours is also a third-degree felony. A small folding knife you can legally carry anywhere else can become a felony charge if you brandish it near a school.

Federal Buildings

Federal law adds its own restriction. Under 18 U.S.C. § 930, carrying a dangerous weapon into a federal facility is punishable by up to one year in prison, and up to two years for a federal courthouse. The statute carves out a narrow exception: a pocket knife with a blade under two and a half inches is not considered a dangerous weapon for these purposes.6Office of the Law Revision Counsel. 18 USC 930 – Possession of Firearms and Dangerous Weapons in Federal Facilities That’s a full inch and a half shorter than Florida’s four-inch pocketknife presumption, which catches people off guard.

Airports

TSA prohibits all knives in carry-on bags, with no exception for blade length or knife type. Knives are allowed in checked luggage, but they must be sheathed or securely wrapped to protect baggage handlers.7Transportation Security Administration. Knives The officer at the checkpoint has final authority on any item.

Courthouses and Polling Places

State courthouses and government buildings with security screening generally prohibit all weapons, including knives. Polling places are restricted during election periods. These restrictions apply whether or not you hold a concealed weapons license.

Knives in Your Car

Florida treats vehicles differently from carrying on the body. Under Section 790.25(4), anyone 18 or older who is legally allowed to possess a weapon can keep it inside a private vehicle as long as it is “securely encased or otherwise not readily accessible for immediate use.”8The Florida Legislature. Florida Statutes 790.25 – Lawful Ownership, Possession, and Use of Firearms and Other Weapons “Securely encased” includes a glove compartment (locked or not), a closed box or container, a zippered case, or a snapped holster.

This matters most if you’re 18 to 20. Permitless concealed carry already lets someone 21 or older keep a knife on their person in a car. In the 18-to-20 bracket, you can still transport a weapon-class knife, just not on your body. Keep it in the glove box, a sheathed case, or a closed container. Common pocketknives are exempt from all of this. A sub-four-inch folder in your pocket while driving is legal at any age.

Giving or Selling a Knife to a Minor

Under Section 790.17, selling, lending, or giving any weapon (other than an ordinary pocketknife) to a minor without the permission of a parent or guardian is a first-degree misdemeanor.9The Florida Legislature. Florida Statutes 790.17 – Furnishing Weapons to Minors A parent can buy a teenager a hunting knife. A store selling a fixed-blade to a 16-year-old without parental consent is not in the clear. Ordinary pocketknives are exempt.

Penalties for Knife Violations

The severity of a knife charge in Florida depends on what you did, where you were, and your history.

Prior weapon convictions can raise penalties under Florida sentencing guidelines, and a judge has discretion to sentence more harshly when the facts suggest the knife was carried as a weapon rather than a tool.

Local Ordinances

Florida’s preemption statute, Section 790.33, blocks cities and counties from passing their own firearms regulations.13The Florida Legislature. Florida Statutes 790.33 – Field of Regulation of Firearms and Ammunition Preempted That preemption applies to firearms and ammunition, not to knives. Local governments could impose additional knife restrictions on top of state law. Most Florida municipalities don’t, but checking your local code is worth it before you assume the statewide rules are the whole picture, especially with a larger fixed-blade in an urban area.