Most of the dimensions of former hockey rink are fixed and use imperial measurements. However, the metric system is now recognized by FIH in the “Law on Hockey”. The yard is rectangular with dimensions of 91.4 m × 55 m (100.0 yd × 60.1 yd).
At each end of the field is a goal 2.14 m (7 ft) high and 3.66 m (12 ft) wide, with 22.9 m (25 yd) long cross-court lines connecting the two vertical lines ( commonly referred to as 23 meter lines or 25-yard lines) and the center line (center line). A circle 0.15 m (6 in) in diameter is called a penalty spot or stroke mark, placed in a circle, 6.40 m (7 yd) from the goal. The polishing circle is 15 m (16 yd) from the horizontal boundary.
See more at: Hockey peeing on the seat is like hitting the post poster
