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

