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Basketball court dimensions

NBA: 94 × 50 ft (28.65 × 15.24 m) · FIBA: 28 × 15 m — rim at 10 ft

A full-size basketball court in the NBA and NCAA measures 94 by 50 feet (28.65 × 15.24 m); FIBA — the international standard used in the Olympics — plays on a slightly smaller 28 × 15 m court. What never changes is the rim: 10 feet off the floor at every professional and school level. Here are the official dimensions, the three-point distances by level, and the breakdown of the key, the paint and the circles.

94 ft (28.65 m)50 ft (15.24 m)3-pt line 23.75 ft (NBA)

To-scale diagram · official dimensions per NBA Rulebook / FIBA Official Basketball Rules

Official dimensions

ElementMeasurementDetail
Court length (NBA / NCAA)94 ft (28.65 m)FIBA: 28 m (91.9 ft)
Court width (NBA / NCAA)50 ft (15.24 m)FIBA: 15 m (49.2 ft)
Rim height10 ft (3.05 m)same at every level
Three-point line (NBA)23.75 ft (7.24 m)22 ft (6.7 m) in the corners
Three-point line (FIBA)6.75 m (22.15 ft)6.60 m in the corners
Free-throw line15 ft (4.57 m)from the plane of the backboard
The key / paint (NBA)16 ft (4.88 m) wideFIBA: 4.9 m wide × 5.8 m deep
Backboard6 × 3.5 ft (1.83 × 1.07 m)

Court zones explained

The key (the paint). The rectangle under each basket — 16 ft wide in the NBA, 4.9 m in FIBA. Offensive players cannot camp inside it for more than 3 seconds.

The three-point arc. In the NBA it runs 23 ft 9 in from the center of the rim, flattening to 22 ft in the corners. FIBA uses 6.75 m (6.60 m corners), and U.S. high school 19 ft 9 in.

The free-throw line. 15 ft from the backboard at every level, from high school to the NBA. Free throws are worth 1 point.

The center circle. Where the opening jump ball takes place — 12 ft in diameter in the NBA, 3.6 m in FIBA.

The restricted area. A small arc under the rim (4 ft radius in the NBA) inside which defenders cannot draw charging fouls.

Surface and materials

Competition courts use hardwood (maple parquet) indoors; outdoor courts are typically asphalt or concrete, often with acrylic or modular sport tiles. Both the NBA and FIBA require a hard, flat, uniform surface.

Variants and categories

NBA / WNBA94 × 50 ft (28.65 × 15.24 m), 3-pt line at 23.75 ft / 22 ft corners.
NCAA (college)94 × 50 ft, 3-pt line at 22 ft 1¾ in (6.75 m).
FIBA (international)28 × 15 m (91.9 × 49.2 ft), 3-pt line at 6.75 m.
U.S. high school84 × 50 ft, 3-pt line at 19 ft 9 in.
3x3 (half court)One hoop on a 15 × 11 m playing surface (FIBA 3x3).

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Frequently asked questions

How big is a basketball court?

An NBA or NCAA court is 94 feet long by 50 feet wide (28.65 × 15.24 m). FIBA courts are 28 × 15 m, and U.S. high school courts are 84 × 50 ft.

How high is a basketball rim?

The rim sits 10 feet (3.05 m) above the floor at every level — high school, college, FIBA and the NBA.

How far is the NBA three-point line?

The NBA arc is 23 feet 9 inches (7.24 m) from the center of the rim, shortening to 22 feet in the corners.

How far is the free-throw line?

15 feet from the plane of the backboard — the same in the NBA, NCAA, FIBA and high school.

Other court dimensions

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Source. Dimensions per the NBA Rulebook / FIBA Official Basketball Rules. Measurements can vary at recreational facilities; always check the current rulebook for sanctioned play.