Athletic Field Dimensions

Baseball

Field Type Base Dist. Backstop to Home Foul Lines Center Field Infield Arc from Pitchers Mound Warning Track Foul Warning Track Outfield
Official Rules
(MLB & College)
90 ft 60 ft 325 ft 400 ft 95 ft 15 ft 15 ft
High School 90 ft 60 ft 300 ft 350 ft 95 ft 15 ft 15 ft
Little League
9-12 yrs old
60 ft 25 ft 205 ft 215 ft 50 ft 8 ft 12 ft
Babe Ruth
5-12 yrs old 60 ft 25 ft 200 ft 200 ft 50 ft 8 ft 12 ft
13-15 yrs old 90 ft 60 ft 250 ft 250 ft 95 ft 15 ft 15 ft
16-18 yrs old 90 ft 60 ft 300 ft 350 ft 95 ft 15 ft 15 ft

Field Type Pitch Dist. Baseline Width Mound Radius Infield Turf
(sq ft)
Estimated Total Turf Area
(sq ft)
Official Rules
(MLB & College)
60.5 ft 6 ft 9 ft 6,800 120,000
High School 60.5 ft 6 ft 9 ft 6,800 105,000
Little League
9-12 yrs old
46 ft 6 ft 5 ft 2,850 40,000
Babe Ruth
5-12 yrs old 46 ft 6 ft 5 ft 2,850 40,000
13-15 yrs old 60.5 ft 6 ft 9 ft 6,800 55,000
16-18 yrs old 60.5 ft 6 ft 9 ft 6,800 76,000

Softball

Field Type Pitch Dist. Base Dist. Outfield Fence Min Outfield Fence Max Skinned Area (ft sq) Infield Arc from Pitching Rubber Total Turf Area (sq ft)
College 43 ft 60 ft 190 ft foul 225 ft 8,500 60 ft 32,000
High School Fast Pitch 43 ft 60 ft 200 ft center 225 ft 8,500 60 ft 32,000
Female 40 ft 60 ft 185 ft 235 ft 8,500 60 ft 32,000
Male 46 ft 60 ft 185 ft 235 ft 8,500 60 ft 32,000
ASA Slow Pitch
Female Adult 46 ft 65 ft 250 ft 250 ft 9,500 65 ft 50,500
Male Adult 46 ft 65 ft 275 ft 300 ft 9,500 65 ft 60,000
  • All area measurements are approximate and the shape of individual fields will vary.
  • Assume Softball fields do not have grass infields. For area measurements with a grass infield, refer to Little League Baseball measurements.
  • Some, but not all of the data used was taken from Sports Fields, (1999) by Jim Puhalla, Jeff Krans, and Mike Goatle