The bullseye scores 50 points in standard darts.
The bullseye is the small central circle on a dartboard, also called the inner bull or double bull. It is worth 50 points, while the surrounding outer bull is worth 25 points. The two areas are visually close but have different scoring values.
In many standard x01 formats, including 501, the bullseye can also count as a finishing double. Its value of 50 is treated as two times 25 for the purpose of ending a double-out leg. That makes it a legal finishing target and the key component of the 170 checkout.
The bullseye is not the highest-scoring single target on the board: treble 20 scores 60. However, it is the board’s highest-value central target and is strategically important when a player needs an exact finish. Steel-tip and soft-tip rules can vary in details, but the familiar standard dartboard value is 50.