Baseball Field Dimensions: Every Measurement from Little League to the Majors
Baseball fields come in all sizes, from 60-foot Little League diamonds to 90-foot regulation fields with 400-foot center field walls. Here's a complete guide to field dimensions at every level of play.
Knowing baseball field dimensions is fundamental whether you're coaching a Little League team, managing a high school program, or just trying to understand why the pitcher's mound is exactly 60 feet 6 inches from home plate (spoiler: it's because they moved it back from 50 feet in 1893 and it stuck). The field changes significantly between youth levels, and there are more variations than most people realize.
The biggest differences are in the base paths (60 feet for Little League, 90 feet for high school and up) and pitching distance (46 feet for Little League, 60'6" for regulation). Outfield dimensions also vary wildly, even at the MLB level where no two parks are exactly alike.
This guide covers baseball field dimensions from Little League through the Major Leagues, including all the key measurements for pitching distance, base paths, mound height, and outfield fences. If you're getting your team geared up for the season, check out our custom baseball jerseys and youth baseball uniforms.
Baseball Field Dimensions at a Glance
Quick reference table comparing key measurements across all levels.
| Level | Base Path | Pitching Distance | Mound Height | Outfield Fence |
|---|---|---|---|---|
| Tee Ball (4-6) | 50 ft | N/A | Flat | No fence |
| Coach Pitch (7-8) | 50 ft | 42 ft | Flat | 150-175 ft |
| Little League (9-12) | 60 ft | 46 ft | 6 in | 200 ft |
| Intermediate (50/70) | 70 ft | 50 ft | 6 in | 225 ft |
| Junior League (13-14) | 90 ft | 60' 6" | 10 in | 275-300 ft |
| High School | 90 ft | 60' 6" | 10 in | 300-330 ft |
| College (NCAA) | 90 ft | 60' 6" | 10 in | 320-340 ft |
| MLB | 90 ft | 60' 6" | 10 in | 325-410+ ft |
Outfield fence distances shown as typical ranges. MLB outfield dimensions vary by ballpark.
Little League Field Dimensions
The most common youth baseball field size for ages 9-12.
46 ft Pitching, 60 ft Bases, 200 ft Fence
The Little League Major Division (ages 9-12) uses a 60-foot diamond with the pitching rubber 46 feet from home plate. The outfield fence is 200 feet from home plate in all directions. The mound is raised 6 inches above the level of home plate, which is lower than the 10-inch mound used at older levels.
These dimensions have been the Little League standard for decades. The 46-foot pitching distance gives young hitters enough time to react while still being close enough for young pitchers to throw strikes consistently. At 200 feet, the outfield fence is reachable for the strongest hitters in the division but still far enough to reward gap-to-gap hitting.
Intermediate (50/70) Division
Little League's Intermediate Division bridges the gap between the 60-foot diamond and the full 90-foot field. Base paths are 70 feet, pitching distance is 50 feet, and the outfield fence is 225 feet. This division is typically for ages 11-13 and helps players transition to the bigger field without the shock of jumping straight from 60 feet to 90 feet.
High School and College Field Dimensions
Full regulation fields with 90-foot base paths.
High School: 60'6" Pitching, 90 ft Bases
High school baseball uses full regulation dimensions: 90-foot base paths, 60 feet 6 inches from the pitching rubber to home plate, and a 10-inch mound. The outfield fence typically ranges from 300 to 330 feet, depending on the facility. Some schools share fields with other sports and may not have permanent fences.
The jump from youth baseball to the 90-foot diamond is one of the biggest transitions in the sport. Infielders need stronger arms, baserunners need to be faster, and pitchers are working from a higher mound at a greater distance. If you're outfitting a high school team, our baseball uniforms are built for the varsity level.
College (NCAA): Same Infield, Bigger Outfield
College baseball uses the same infield dimensions as high school and MLB: 90-foot base paths, 60'6" pitching distance, and a 10-inch mound. The main difference is the outfield. NCAA recommends a minimum of 325 feet down the foul lines and 400 feet to center field, though many programs have fences at 330 to 340 feet down the lines and 390 to 405 feet in center.
MLB Field Dimensions
The infield is standard, but every outfield is unique.
Standard Infield: 90 ft Bases, 60'6" Pitching
Every MLB park uses the same infield dimensions. Bases are 90 feet apart, the pitching rubber is 60 feet 6 inches from home plate, and the mound is 10 inches high. The infield is perfectly standardized. What makes each park unique is the outfield.
Variable Outfield Dimensions
MLB rules require a minimum of 325 feet from home plate to the outfield fence along the foul lines and 400 feet to center field. But many parks built before this rule was strictly enforced have shorter dimensions, and the areas between the lines and center field vary dramatically. Fenway Park's left field (the Green Monster) is just 310 feet. Coors Field's center field is 415 feet. This variation is part of what makes baseball unique among major sports.
Key Field Markings and Measurements
The details that make up a baseball diamond.
Pitcher's Mound
- •Height: 10 in (HS/College/MLB), 6 in (LL)
- •Diameter: 18 ft
- •Rubber: 24 in long x 6 in wide
- •Slope: 1 inch per foot for 6 ft in front of rubber
Home Plate Area
- •Home plate: 17 in wide, five-sided
- •Batter's box: 4 ft wide x 6 ft long
- •Catcher's box: 43 in wide, extends 8 ft behind plate
Baselines and Paths
- •Base size: 15 in x 15 in (18 in x 18 in in MLB since 2023)
- •Home to 2nd diagonal: 127 ft 3 3/8 in (90-ft field)
- •Foul lines: Extend from home plate past 1st and 3rd bases
Other Field Features
- •Coach's box: 20 ft long x 4 ft wide (1st and 3rd base)
- •On-deck circle: 5 ft diameter
- •Backstop: Minimum 60 ft from home plate
Tips for Setting Up a Baseball Field
Practical advice for coaches, parents, and league directors.
Check the home-to-second diagonal
The easiest way to verify your diamond is square is to measure the diagonal from home plate to second base. For a 90-foot diamond, it should be 127 feet 3 3/8 inches. For a 60-foot diamond, it should be 84 feet 10 1/4 inches. If the diagonal is off, your bases aren't square.
Build the mound properly
A regulation mound has a flat area (the table) that's 5 feet wide and 34 inches deep at the top. The rubber sits at the front edge of the table. The mound then slopes downward at 1 inch per foot for 6 feet toward home plate. Many youth fields have poorly maintained mounds that are either too flat or too steep, which affects pitcher mechanics and safety.
Transition age groups
If you have players moving from the 60-foot diamond to the 90-foot field, consider running practices on both sizes. The Little League Intermediate Division (50/70) was specifically designed as a bridge, but not all leagues offer it. Getting kids comfortable with the bigger field before games start is worth the extra setup time.
Outfit the team
Whether you're coaching Little League or varsity, your team needs custom jerseys that look sharp and fit well. Our youth baseball uniforms are sized for growing players and come with no minimums and fast turnaround.
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Frequently Asked Questions
How far is the pitcher's mound from home plate?
In high school, college, and MLB, the pitching rubber is 60 feet 6 inches from the back point of home plate. In Little League (ages 9-12), the distance is 46 feet. For intermediate (50/70) baseball, it's 50 feet. The Pony League and some travel ball organizations use different distances that fall between Little League and the regulation 60 feet 6 inches.
How far apart are the bases in baseball?
At the high school, college, and MLB level, bases are 90 feet apart. In Little League (ages 9-12), bases are 60 feet apart. Intermediate (50/70) baseball uses 70-foot base paths. Some youth leagues for ages 7-8 (Coach Pitch) use 50-foot base paths. The 90-foot diamond has been the standard for professional baseball since the 1840s.
How high is a baseball pitching mound?
The pitching mound is 10 inches above the level of home plate at the high school, college, and MLB level. In Little League, the mound is 6 inches high. The mound slopes downward at a rate of 1 inch per foot for the first 6 feet in front of the rubber. The pitching rubber sits at the highest point of the mound.
How far is the outfield fence in baseball?
Outfield fence distances vary by level and even by ballpark. In Little League, the fence is 200 feet from home plate. High school fields typically range from 300 to 330 feet. College fields generally have fences at 320 to 340 feet. MLB parks vary widely, from around 325 feet down the lines to 400+ feet in center field. No two MLB stadiums have identical outfield dimensions.
What are Little League field dimensions?
A Little League (Major Division, ages 9-12) field has 60-foot base paths, a 46-foot pitching distance, and a 200-foot outfield fence. The mound is 6 inches high. The infield is a 60-foot diamond with the same general layout as a full-size field but scaled down proportionally for younger players.
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