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Comparison

NBA Rules vs FIBA Rules

NBA and FIBA basketball share the same fundamental game but differ in important ways: court size, game length, shot clock, 3-point line distance, foul limits and timeout rules.

Quick answerNBA and FIBA basketball share the same fundamental game but differ in important ways: court size, game length, shot clock, 3-point line distance, foul limits and timeout rules. International players must adjust when entering the NBA. FIBA rules govern the Olympics and most international competitions; NBA rules are used only in the NBA itself.
FactorNBA RulesFIBA Rules
Court length28.65m28m
3-point line6.75m (varies by angle)6.75m (uniform)
Shot clock24s (14s after offensive RB)24s (14s after offensive RB)
Game length4×12 min quarters4×10 min quarters
Foul limit6 personal fouls5 personal fouls
GoaltendingDuring downward arcAfter touching backboard
Timeouts7 per game2 per half + 1 per OT

Choose NBA Rules when…

You play or follow NBA basketball, want the specific rules of professional North American basketball, or are comparing player stats in an NBA context.

Choose FIBA Rules when…

You play or follow international basketball, compete in FIBA-governed events, or are training for FIBA competition including the Olympics.

Gear for both

FIBA Official Basketball

FIBA-spec ball for international rule training.

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Basketball Rules Book

Official FIBA rulebook for international competition.

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FAQ

Which 3-point line is further — NBA or FIBA?

At the corners, the NBA line (6.70m) is essentially the same as FIBA (6.75m). At the top of the arc, the NBA extends to 7.24m — significantly further than FIBA's uniform 6.75m.

What is the 3-point line distance in NBA vs FIBA?

The NBA 3-point line ranges from 6.71m (22 feet) at the corners to 7.24m (23 feet 9 inches) at the top of the arc. FIBA's 3-point line is 6.75m (22 feet 1.75 inches) throughout (no corner difference). The NBA line is slightly longer, particularly at the top of the arc, which is why players who transition from international basketball often shoot a higher percentage initially.

What are the main rule differences between NBA and FIBA?

Key differences: game length (NBA: four 12-minute quarters; FIBA: four 10-minute quarters); shot clock after offensive rebound (NBA: 14 seconds; FIBA: 14 seconds, same); defensive 3-second rule (NBA only); 3-point line distance (NBA slightly longer); challenge system (NBA has coaches challenges; FIBA uses video review differently). Zone defence rules also vary slightly. The games are recognisably similar but these differences affect pace and strategy.