How many points does it take to win a set in volleyball?

Sets 1-4 require 25 points with a 2-point lead (NFHS caps at 27). The deciding set (set 5) requires 15 points with a 2-point lead (NFHS caps at 17).

Full Explanation

Per FIVB Rule 6.4.1, a set (other than the deciding set) is won by the team that first scores 25 points with a minimum 2-point advantage. If the score reaches 24-24, play continues until one team leads by 2 (no cap under FIVB, USAV, and NCAA). Under NFHS Rule 5-3-1, sets 1-4 are capped at 27 points -- the first team to reach 27 wins regardless of margin. The deciding set (set 5) is won at 15 points with a 2-point lead (FIVB Rule 6.4.2); NFHS caps the deciding set at 17 points. Under NCAA, both scoring thresholds have no cap.

Rulesets covered: FIVB/USAV/NFHS/NCAA  |  Rule Reference: FIVB Rule 6.4.1; FIVB Rule 6.4.2; NFHS Rule 5-3-1