Football Size in Inches: Official Length

Official Football Dimensions

The length of a football is defined by the league or governing body that sanctions the game. For American football, the NFL and NCAA both specify that the ball must be 10.5 to 11.5 inches long. The most common size, used in professional and college play, is exactly 11 inches. This measurement is taken along the long axis of the ball, from the tip of one pointed end to the tip of the other, not along the curved surface.

High school and youth footballs are slightly shorter. A junior-size ball is about 10.5 inches long, and a youth ball is about 10 inches. These smaller sizes help younger players grip and throw the ball more easily.

How Football Length Is Measured

To measure a football’s length accurately, you need a flexible tape measure or a ruler that can span the curved ends. Place the ball on a flat surface and measure from the outermost point of one tip to the outermost point of the other tip, keeping the tape straight along the center line. Do not pull the tape tight against the leather; let it rest on the surface.

The length is the official dimension that matters for game play, but the ball also has a circumference (about 28 inches around the middle) and a width (about 6.5 inches across the center). These dimensions together determine the ball’s overall size and feel.

Football Length Compared to Everyday Objects

An 11-inch football is a familiar size, but it helps to picture it alongside things you see daily:

A standard sheet of paper is 11 inches long. If you lay a football on a piece of printer paper, it will span the full length of the paper.
A dollar bill is about 6.1 inches long, so a football is nearly twice as long as a dollar bill.
A standard ruler is 12 inches long. A football is about one inch shorter than the ruler.
A medium pizza is typically 12 inches in diameter, so a football is just slightly shorter than the pizza’s width.
A legal pad is about 8.5 by 14 inches; the football fits along the short side.
A typical smartphone is about 6 inches long, so a football is nearly twice as long as a phone.

Common Misconceptions About Football Size

Many people assume that a football is longer than it actually is because of its pointed ends. The tips add visual length, but the actual measurement from tip to tip is 11 inches for a standard ball. Another common mistake is measuring the ball’s length along the curved top surface, which gives a longer number (about 12 inches). The official length is always the straight-line distance between the tips.

People also confuse the length with the circumference. The circumference (about 28 inches) is the distance around the middle of the ball, which is much larger than the length. If you wrap a tape measure around the ball at its widest point, you’ll get the circumference, not the length.

How Football Size Affects Play

The length of a football influences how it feels in your hand and how it travels through the air. A longer ball is easier to grip for players with larger hands, but it can be harder to spin consistently. A shorter ball is easier to hold for smaller hands but may not spiral as tightly. The 11-inch length is a compromise that works for most adult players.

For quarterbacks, the length affects release and accuracy. A slightly longer ball can be thrown with more velocity, but it may be harder to control. Receivers also notice the length when catching; a longer ball is easier to see in flight but can be more difficult to secure against the body.

Youth leagues use shorter balls (around 10 inches) to help young players learn proper throwing mechanics without struggling with a full-size ball. As players grow, they transition to the standard 11-inch ball.

Choosing the Right Football Size

If you are buying a football for yourself or a child, match the size to the player’s age and hand size:

Youth (ages 6-9): choose a ball about 10 inches long. This size fits small hands and is easier to throw.
Junior (ages 10-12): choose a ball about 10.5 inches long. This is a step up in size and weight.
High School (ages 13+): choose a ball about 11 inches long. This is the standard size used in high school games.
College and NFL: use the official 11-inch ball. This is the same size for all adult play.
Recreational play: if you are playing casually with friends, any size close to 11 inches will work. The key is comfort and grip.
Indoor or mini footballs: these are often 6-8 inches long and are not regulation size. They are for decoration or casual tossing.

Always check the product label for the official size. Most footballs list their dimensions on the box or tag. If you are unsure, measure the ball with a tape measure before buying.

Football Length in Other Codes

The 11-inch length applies to American football. Other football codes use different ball sizes:

Canadian football uses a slightly longer ball, about 11 inches long as well, but the overall shape is similar.
Rugby ball is longer and more oval, measuring about 11.8 inches long.
Soccer ball (association football) is spherical, not oval, and has a circumference of about 27-28 inches, so there is no “length” in the same sense.
Australian rules football is similar to rugby, about 11.5 inches long.

When someone asks “how long is a football?” they usually mean American football, but it’s worth clarifying if you are discussing other sports.

Frequently Asked Questions

Is a football exactly 11 inches long?

Yes, the standard American football is 11 inches long. The official rules allow a range of 10.5 to 11.5 inches, but the most common size used in professional and college play is exactly 11 inches.

How long is a football in centimeters?

An 11-inch football is about 28 centimeters long. To convert, multiply inches by 2.54, so 11 × 2.54 = 27.94 cm.

Why does a football look longer than 11 inches?

The pointed tips make the ball appear longer than it actually is. The visual length from tip to tip is 11 inches, but the curved surface may look longer. Also, if you measure along the top curve, you get about 12 inches, which adds to the illusion.

What is the circumference of a football?

The circumference around the middle of a standard football is about 28 inches. This is the measurement around the widest part of the ball, perpendicular to the length.

Do youth footballs have the same length?

No, youth footballs are shorter. A youth ball is about 10 inches long, and a junior ball is about 10.5 inches. These smaller sizes help young players grip and throw more easily.

How do I measure a football’s length at home?

Use a flexible tape measure. Place the ball on a flat surface, then measure from the tip of one end to the tip of the other, keeping the tape straight. Do not follow the curve of the ball.

Sources: NFL Rulebook. Menus and buttons can differ slightly by version. Spotted something out of date? Tell us.