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Sports Dimensions

Basketball Court Dimensions

Official NBA and FIBA basketball court measurements

Court Layout

28.65 m
15.24 m
NBA STANDARD

Court Dimensions

Court Length28.65 m
Court Width15.24 m
Rim Height3.05 m
Rim Diameter0.45 m

Line Distances

3-Point Line (Arc)7.24 m
3-Point (Corner)6.71 m
Free Throw Line4.57 m
Key Width4.88 m

NBA vs FIBA Standards

NBA

  • • Court: 94 × 50 feet (28.65 × 15.24 m)
  • • 3-point: 23.75 ft (7.24 m) at arc
  • • 3-point corner: 22 ft (6.71 m)
  • • Wider key: 16 feet (4.88 m)
  • • Used in North American leagues

FIBA

  • • Court: 91.86 × 49.21 feet (28 × 15 m)
  • • 3-point: 22.15 ft (6.75 m) uniform
  • • Uniform 3-point distance
  • • Trapezoid key shape
  • • Used in international competitions

Important Notes

Rim Standards: The rim must be exactly 10 feet (3.05m) from the floor and 18 inches (45.72cm) in diameter for both NBA and FIBA.

Backboard: Must be 6 feet (1.83m) wide by 3.5 feet (1.07m) tall, positioned 4 feet (1.22m) from the baseline.

Line Width: All court lines should be 2 inches (5cm) wide in contrasting color to the court surface.

Ceiling Height: Minimum 23 feet (7m) clearance required for competitive play, though 26 feet (7.92m) is preferred.

What are the Official Basketball Court Dimensions?

Basketball court dimensions differ between the NBA (North American professional league) and FIBA (International Basketball Federation, governing all international play including the Olympics). NBA courts are slightly larger at 28.65m × 15.24m compared to FIBA's 28m × 15m. Both standards are used worldwide — NBA dimensions in North American professional venues, FIBA in international and most non-US leagues.

The three-point line is one of the most impactful court features and has changed significantly over time. The NBA three-point line ranges from 7.24m at the wings to 6.70m in the corners. FIBA's three-point line is 6.75m (6.60m in corners) — notably shorter, which makes direct comparisons of three-point shooting percentages between NBA and international play challenging.

The key (painted area / lane) is rectangular and used to regulate positioning during free throws and define restricted zones. Under NBA rules it is 4.88m wide; under FIBA it is 4.90m wide and trapezoidal in shape — a notable difference that affects post play positioning.

NBA Length
28.65 m (94 ft)
NBA Width
15.24 m (50 ft)
FIBA Length
28.0 m
FIBA Width
15.0 m
NBA 3-pt (wing)
7.24 m (23.75 ft)
FIBA 3-pt (wing)
6.75 m

How to Read This Diagram

1
Standard: Select NBA or FIBA — affects court size, three-point line distance, and key shape.
2
Unit: Toggle between metres and feet based on your preference.
3
Measurements: All key dimensions are displayed on the interactive court diagram.

Key Court Zones

  • • Restricted area: 1.25m radius — no charge calls inside this arc
  • • Free throw line: 4.57m (NBA) / 4.60m (FIBA) from backboard
  • • Three-second lane: Offensive player cannot stay here for 3+ seconds
  • • Half-court: 8-second rule — ball must cross in NBA (8s) / FIBA (8s)
  • • Corner three: 6.70m (NBA) / 6.60m (FIBA) — shortest three
Source: NBA Official Rules 2023–24; FIBA Official Basketball Rules 2023; Basketball England Court Specifications

?Frequently Asked Questions