Baseball Field Dimensions
Official baseball field dimensions for every common level of play. The standard sheet covers High School, NCAA and MLB — 90-ft base paths, 60-ft 6-in mound, 95-ft outfield grass radius. The youth sheet covers every Little League division (Majors 60/46, Intermediate 50/70, Junior, Senior) plus Babe Ruth / Cal Ripken.
One for adults, one for kids.
Marking & FAQ — Baseball Fields
From high school through the major leagues the infield is identical: 90-ft base paths and a pitching rubber 60 ft 6 in. from the back point of home plate, on a mound raised 10 in. above the field. Only the outfield fence distance varies by park.
Youth baseball scales the whole diamond down. Little League Majors (ages 9-12) uses 60-ft bases and a 46-ft pitching distance with a flat-ish mound, then the Intermediate (50/70) and Junior/Senior (60/90) divisions step up toward the full field.
How to lay out a baseball infield
The infield is a square turned on its point. Get home plate and the 90-ft diagonal right and the rest follows.
You'll need: 200-ft tape measure · Two shorter tapes · Chalk or marking paint · Base anchors and a pitching rubber
- Set home plate. Place the back point of home plate. All measurements start from here.
- Run the foul lines. Stretch lines from home through where first and third base will sit, 90 ft along each (HS / college / MLB; 60 ft for Little League Majors).
- Locate second base. Second base is on the line straight out from home. Home to second is 127 ft 3⅜ in. on a 90-ft diamond (84 ft 10¼ in. on a 60-ft diamond). Where the two 90-ft swings from first and third intersect is second base.
- Set the pitching rubber. Measure 60 ft 6 in. from the back point of home along the home-to-second line (46 ft for Little League Majors). Center the rubber there.
- Build the mound. The mound is an 18-ft-diameter circle (MLB) with the rubber 10 in. above home-plate level, sloping down 1 in. per foot starting 6 in. in front of the rubber.
Frequently asked questions
How far is the pitcher's mound from home plate?
60 ft 6 in. for high school, college, and the major leagues, measured to the back point of home plate. Little League Majors uses 46 ft.
How far apart are the bases?
90 ft at high school, college, and MLB. Little League Majors uses 60-ft base paths; the Intermediate division uses 70 ft.
What's the distance from home plate to second base?
127 ft 3⅜ in. on a regulation 90-ft diamond. On a 60-ft Little League diamond it's 84 ft 10¼ in.
How big is the pitcher's mound?
18 ft in diameter (MLB), with the rubber set 10 in. above the level of home plate and a slope of 1 in. per foot starting 6 in. in front of the rubber.
Are Little League fields smaller than regulation?
Yes. Little League Majors plays on a 60-ft / 46-ft diamond; players move up to larger fields through the Intermediate, Junior, and Senior divisions.
Dimensions verified against current governing-body rule books. Updated through May 2026.