How Heavy Is a Basketball? A Plain Guide to Weights by Level

How heavy is a basketball? A standard NBA ball weighs about 22 ounces, or roughly 1.4 pounds. Other levels of play often use lighter balls, and weighted training balls run from about 2.8 to 4 pounds.

This guide covers the weights usually quoted for professional, college, international and youth play.

It then explains weighted training balls, outlines how air pressure fits in, and notes where the available figures are limited.

How Heavy Is a Basketball in Different Leagues?

The official NBA basketball weighs about 22 ounces, which is close to 1.4 pounds. It has a circumference of 29.5 inches and a leather cover.

According to NBA.com, the current Wilson game ball keeps the same materials, eight-panel layout and performance specifications as the balls it replaced.

Other leagues and levels set their own requirements, so the answer changes depending on who is playing.

Most published figures are given as approximations or ranges, not single exact values, and that is how they are presented here.

In practice, coaches and parents commonly check the labeled size on a ball first, since size and weight tend to move in step from one level to the next.

Approximate Weights at a Glance

The table below collects the figures quoted for each level of play.

Level of play	Approximate weight	Metric converted	Circumference
NBA	About 22 oz or 1.4 lb	About 620 g	29.5 in
NCAA	20 to 22 oz	About 570 to 620 g	29 in
WNBA	18 to 20 oz	About 510 to 570 g	28.5 in
FIBA international	20 to 22 oz	About 570 to 620 g	Not given
Youth leagues	14 to 16 oz	About 400 to 450 g	27.25 to 27.75 in

Metric values are rounded conversions from the ounce figures, and the circumference for international play was not stated in the source material.

How Heavy Is a Basketball for Youth Players?

Youth leagues use balls in the range of 14 to 16 ounces, with a smaller circumference that makes the ball easier to grip and shoot for smaller hands.

The sources reviewed do not break youth balls into age bands, so the equipment guidelines from the league itself are the better reference for a specific age group.

Parents choosing a ball for a child commonly start from the stated requirement from the league and treat packaging labels as a second check.

How Reliable Are These Figures?

The weights above come from a general explainer and are stated as approximations. Leagues typically publish their own ball specifications, so a specific ball may land a little above or below a quoted figure.

This article does not list weights by ball size number, because that breakdown was not available in the sources used. Anyone buying equipment for a league should check the current rules for that league.

Why Basketball Weight Differs Between Levels

Weight is one of several technical specifications that keep play consistent. A ball that is too heavy is harder to handle and shoot, and a ball that is too light may not bounce as expected.

The lighter balls used for youth and women competition are generally explained as a better match for hand size and strength, though detailed reasoning is not given in the sources reviewed.

Handling and Control

Smaller hands need a smaller, lighter ball to grip, pass and shoot with sound form. The same reasoning is given for the WNBA, where the ball is slightly lighter and smaller than the NBA version.

Coaches working with beginners commonly start players on a size-appropriate ball before introducing anything heavier.

Consistency Across Competition

Using balls of consistent weight lets results reflect skill instead of equipment. A ball that varied from game to game would make shooting and passing harder to compare.

Durability across a full season is also cited as part of why the NBA weight was chosen, though no testing data is given.

In practice, many teams train with the same ball model used in games so that weight and feel stay familiar.

Weighted Basketballs as a Separate Category

A weighted basketball, often called a heavy trainer, is a training tool and not a game ball. It matches a regular ball in size and general appearance but weighs more. Coaches describe the extra weight as a form of progressive resistance during practice.

How Heavy Is a Weighted Basketball?

Typical weights run from about 2.8 pounds to 4 pounds, or roughly 1.3 to 1.8 kilograms. The lower end is about twice the weight of a standard NBA ball.

One commercial training ball is listed at 3 pounds, which is about 1.4 kilograms, with a synthetic leather cover meant for indoor and outdoor use.

The gap is large enough that these balls should not be treated as interchangeable with game balls.

What Coaches Say About Weighted Basketballs

Common Uses

Two college coaches quoted in a sports media article describe weighted balls as most useful for passing and ball-handling drills, often early in practice.

One of them does not recommend using them for shooting practice. Both say steady use matters more than exact timing, and one adds that beginners should learn fundamentals first.

In practice, coaches who use them describe weighted balls as an add-on to regular drills, not a replacement for the game ball.

Where the Evidence Is Limited

The benefits described come from coach opinion and product descriptions. No controlled results are cited in the sources reviewed, so claims about improved strength or handling are best read as experience-based, not proven.

Air Pressure and Basketball Weight

Inflation is a separate specification from weight. A standard ball is commonly inflated to between 7.5 and 8.5 pounds per square inch, and as reported by ESPN, NBA game balls are inspected in the officials locker room before a game to confirm they fall within that range.

The pressure is checked with a small gauge inserted into the valve and adjusted with a pump. Over or underinflation is described as causing uneven bounce, which affects dribbling, passing and shooting.

In practice, players tend to notice a poorly inflated ball through its bounce first, long before weight becomes a question.

Conclusion

A standard NBA ball weighs about 22 ounces, while other levels use similar or lighter ranges. Weighted trainers are a separate category at roughly 2.8 to 4 pounds.

Figures here are approximate, so check the rules for the relevant league before buying equipment.

Frequently Asked Questions

How many pounds is an NBA basketball?

About 1.4 pounds, or roughly 22 ounces, according to the sources reviewed.

Is a WNBA ball lighter than an NBA ball?

Yes. The WNBA ball is quoted at about 18 to 20 ounces, compared with about 22 ounces for the NBA ball, and it has a slightly smaller circumference.

How heavy is a basketball for kids?

Youth balls are quoted at about 14 to 16 ounces. The right choice depends on the age bands set by the league, which vary, so check the guidelines from the league.

How heavy is a weighted basketball?

Roughly 2.8 to 4 pounds, which is at least about twice the weight of a standard game ball. One training model is listed at 3 pounds.

Does the weight of a basketball change its bounce?

The sources say a ball that is too light may not bounce properly, and uneven inflation also changes bounce. They give no measurements for either effect.