What Size Football Is Used in High School? Size 9 Explained

By Sarah Miller · August 26, 2051

In high school football in the United States, players use a size 9 football, which is the official standard for all levels of high school competition as regulated by the National Federation of State High School Associations (NFHS). This ball is slightly smaller than the size 11 used in college and professional leagues, making it better suited for younger athletes with smaller hands.

Understanding High School Football Ball Size

The size 9 football is specifically designed to meet the physical needs of high school athletes, typically aged 14 to 18. It provides an optimal balance between control and performance on the field. Using the correct ball size ensures player safety, fair gameplay, and skill development aligned with competitive standards.

Key Specifications of a Size 9 Football

Length: Approximately 10.5 to 11 inches (26.7–27.9 cm)
Circumference (long axis): Around 27.75 to 28.5 inches (70.5–72.4 cm)
Circumference (short axis): About 20.75 to 21.25 inches (52.7–54.0 cm)
Weight: Between 14 to 15 ounces (397–425 grams)
Bladder material: Typically latex or rubber for shape retention
Outer material: Leather or composite leather depending on usage

Differences Between Youth, High School, College, and Pro Footballs

Football sizes vary across age groups and competition levels. Understanding these differences helps coaches, players, and parents select appropriate equipment.

Level	Ball Size	Length (inches)	Long Circumference (inches)	Weight (ounces)
Youth (Ages 6–9)	Size 5	8.5–9	19–20	7–8
Middle School (Ages 10–13)	Size 6 or 7	9–10	21–22.5	9–11
High School	Size 9	10.5–11	27.75–28.5	14–15
College & NFL	Size 11	11–11.25	28–28.5	14–15

Table data source:1, 2

The data shows that while high school and professional footballs have similar weights, the professional ball (size 11) is longer and has a slightly greater long circumference. The high school size 9 ball bridges the gap between youth development and elite play, offering younger athletes improved grip and throwing mechanics essential for skill progression.

Why Size Matters in High School Football

Selecting the correct football size isn't just about rules—it impacts player development, game fairness, and injury prevention.

Benefits of Using the Correct Ball Size

Improved Grip and Control: A size 9 fits comfortably in most high school players' hands, reducing fumbles.
Better Throwing Mechanics: Proper hand placement supports accurate passing technique.
Skill Development: Prepares athletes for the transition to size 11 in college.
Safety: Reduces strain on developing arms and shoulders during throws.
Consistency: Ensures uniformity across teams and states under NFHS regulations.

Regulatory Standards and Equipment Compliance

The National Federation of State High School Associations (NFHS) sets the official playing rules for high school football, including specifications for football size. All sanctioned games must use NFHS-approved footballs.

Approved Brands and Certification

Manufacturers such as Wilson, Nike, Baden, and Riddell produce NFHS-compliant footballs. These balls carry certification marks indicating they meet NFHS standards for size, weight, and material quality.

Look for the NFHS Authentic mark when purchasing game balls.
Schools often use composite leather balls for practice due to durability in varied weather.
Game-day balls are typically made of premium leather for optimal feel and performance.

Frequently Asked Questions About High School Football Ball Size

What size football do high school players use?

High school football players use a size 9 football, which is standardized across the U.S. by the NFHS. It measures approximately 10.5 to 11 inches in length and weighs between 14 and 15 ounces.

Is a high school football the same size as an NFL football?

No, a high school football (size 9) is slightly shorter than an NFL football (size 11), though both have similar weight and short-axis circumference. The NFL ball is longer and has a marginally larger long circumference.

Can middle schoolers use a high school football?

It depends on the player’s age and hand size. Most middle school programs use size 6 or 7 footballs. Introducing a size 9 too early may hinder proper throwing form and increase injury risk.

Are all high school footballs made of leather?

Not necessarily. Game balls are often made of genuine leather for better grip and feel, but many schools use composite leather footballs for practice because they last longer and perform better in wet conditions.

Where can I buy an NFHS-approved size 9 football?

You can purchase NFHS-approved size 9 footballs from sporting goods retailers like Dick's Sporting Goods, Academy Sports, or online through Amazon and manufacturer websites such as Wilson or Baden. Always check for the NFHS certification label before buying.