An NFL field measures 120 yards long by 53⅓ yards wide, including both end zones. That is 360 × 160 feet, or 57,600 square feet. The NFL's Play Football glossary defines the field markings and overall dimensions.
Football Field Dimensions: Length, Width & Square Feet
Professional American football field dimensions
Playing length between the goal lines
The distance from one goal line to the other is 100 yards, or 300 feet. Each end zone adds 10 yards (30 feet) behind a goal line, bringing the total boundary-to-boundary length to 120 yards (360 feet). Therefore, a question about how long the playing field is may mean either the 300-foot goal-line distance or the 360-foot total including end zones.
Football field area in square feet
Multiply the total outside dimensions: 360 ft × 160 ft = 57,600 square feet. Each 30-foot-deep end zone spans the field's 160-foot width, so each is 4,800 square feet. The central area between the goal lines is 48,000 square feet. These are rectangular area calculations from the listed field dimensions.
How wide is a regulation football field?
The regulation American football field is 160 feet wide, equal to 53⅓ yards. This is the marked boundary width; extra sideline or stadium space is not included. These dimensions describe American outdoor football and should not be applied to arena football, which uses a different playing layout. The NFL publishes its current official rulebook and field rules.