Weight: Basketball is a globally popular sport governed by well-defined rules and equipment standards. One essential aspect of the game is the basketball itself—its size, material, and most importantly, its weight. Whether you’re a beginner, a coach, or just a curious fan, understanding the standard weight of a basketball and its variations can help you choose the right ball for your needs and improve performance.

Crazy time: Table of Contents
Why Does Basketball Weight Matter?
The weight of a basketball directly affects:
- Shooting mechanics
- Ball handling
- Passing accuracy
- Endurance and strength development
A ball that’s too heavy or too light for the player’s age group or league can hinder development and even lead to injury. That’s why regulatory bodies like the NBA, WNBA, FIBA, and NCAA have standardized basketball sizes and weights.
Standard Basketball Weights by Category
Standard Basketball Sizes and Weights
Size | Diameter (inches) | Circumference (inches) | Weight (ounces) | Used By |
---|---|---|---|---|
7 | 9.43–9.51 | 29.5 | 22 | Men (NBA, NCAA, FIBA, ages 15+) |
6 | 9.07–9.23 | 28.5 | 20 | Women (WNBA, FIBA, NCAA) |
5 | 8.27 | 27.5 | 17 | Youth (ages 9–11) |
4 | 7.71 | 25.5 | 14 | Youth (ages 5–8) |
3 (Mini) | 7 | 22 | 10 | Toddlers, novelty use |
Governing Body Standards

Various organizations enforce slightly different basketball specifications. Let’s break down the weight and size requirements for some of the world’s top basketball leagues:
Basketball Weights by Organization
Organization | Ball Size | Weight (ounces) | Usage |
---|---|---|---|
NBA | Size 7 | 22 | Men’s professional league |
WNBA | Size 6 | 20 | Women’s professional league |
NCAA (Men) | Size 7 | 22 | College men’s basketball |
NCAA (Women) | Size 6 | 20 | College women’s basketball |
FIBA (Men) | Size 7 | 22 | International men’s competitions |
FIBA (Women) | Size 6 | 20 | International women’s competitions |
High School (Boys) | Size 7 | 22 | High school boys |
High School (Girls) | Size 6 | 20 | High school girls |
Kaisi Time: Basketball Materials and Their Impact on Weight
While size standards remain fairly consistent, materials used to make basketballs can slightly affect the total weight and performance.
Types of Materials
Material | Description | Impact on Weight |
---|---|---|
Leather | Premium quality, used in NBA | Heavier when broken in |
Composite Leather | Synthetic alternative, used in most leagues and schools | Slightly lighter, good grip |
Rubber | Used for outdoor or beginner play | Lightest, but varies by quality |
Inflation and Its Role in Weight
While most people focus on the ball’s physical material, air pressure (PSI) plays a subtle role in how heavy the basketball feels.
Size | Recommended PSI (Pounds per Square Inch) |
---|---|
Size 7 | 7.5–8.5 PSI |
Size 6 | 6.5–8.5 PSI |
Size 5 | 6.0–8.0 PSI |
Underinflated balls feel heavier and harder to bounce, while overinflated balls are lighter and may bounce excessively, affecting control.
Youth and Developmental Considerations

For younger players, using the correct weight is essential for:
- Learning proper shooting form
- Developing ball control
- Preventing wrist and elbow strain
Here’s a breakdown of recommended ball sizes by age group:
Recommended Basketball Weight by Age
Age Group | Ball Size | Weight (oz) | Why This Size? |
---|---|---|---|
5–8 years | Size 4 | 14 | Light enough for small hands and developing strength |
9–11 years | Size 5 | 17 | Transition size to prepare for competitive levels |
12–14 years | Size 6 | 20 | Used in girls’ leagues and middle school |
15+ years | Size 7 (boys) | 22 | Regulation men’s size for high school and above |
15+ years | Size 6 (girls) | 20 | Regulation women’s size |
Specialty Basketballs and Their Weights
Non-Regulation Basketball Weights
Type of Ball | Typical Weight | Purpose |
---|---|---|
Weighted Ball | 2–4 lbs (32–64 oz) | Strength training for passing and shooting |
Mini Ball (Size 3) | 10 oz | For toddlers or trick shots |
Glow-in-the-dark | 16–20 oz | Recreational/night play |
Foam Ball | 6–12 oz | Safe for indoor or young children’s play |
How to Measure Basketball Weight
If you’re unsure about your basketball’s weight, you can check it at home with a few tools:
- Use a digital kitchen scale: Place the deflated or inflated ball gently on the scale.
- Check the packaging: Most retail basketballs display the weight and size.
- Compare with standards: If your ball feels noticeably different, it may be non-regulation.
Kg Time: Frequently Asked Questions

1. Can a basketball’s weight affect my shooting?
Absolutely. Heavier basketballs can cause fatigue or poor shooting mechanics, especially in younger players.
2. Why does my ball feel heavier over time?
3. Is it okay for kids to use adult-sized basketballs?
It’s not recommended. Using a ball that’s too heavy can lead to bad form and hinder skill development.
Understanding the weight of a basketball is more than a technical curiosity—it’s a practical factor that influences every part of the game. From ball control and shooting accuracy to injury prevention and fair play, weight matters.
Here’s a quick summary of key takeaways:
Quick Summary Table
Who | Ball Size | Weight | Why It’s Important |
---|---|---|---|
Men (15+) | Size 7 | 22 oz | Standard for power and performance |
Women (15+) | Size 6 | 20 oz | Lighter for better control and shooting form |
Youth (9–11) | Size 5 | 17 oz | Encourages proper development |
Beginners (5–8) | Size 4 | 14 oz | Easier for small hands to handle and shoot |
Whether you’re a player, coach, or parent, knowing the correct basketball weight ensures a better and safer experience on the court.