The distance varies based on the league. Baseball (NCAA and MLB) is 90 feet. Softball is between 60 and 90 feet, depending on underhand or overhand, or mens and womens.
This is because the rules of baseball say the mound is a distance from homeplate that is less than halfway the distance between homeplate and 2nd base. The distance is the same between each base in order (the same from home to 1st, 1st to 2nd, 2nd to 3rd, 3rd to home.) This results in the distance between homeplate and 2nd equal to the distance between 1st and 3rd. If you draw a line between homeplate and 2nd, and a line between 1st and 3rd, the lines will intersect in the center of the baseball diamond. However, the center point will be behind the pitcher's mound. You can use the Pythagorean Theorem to prove the distance from the mound to home is less than the center point, but that is another question. (Hint: The distance squared from home to first plus the distance squared from first to second divided by 2).
The distance between 1st base and 3rd base on a MLB field is 127'.
From home to first, first to second, etc.. the distance between bases is 90 feet. All the way around is 360 feet. But if you're asking what the distance is around a whole baseball field, each field is different. Some have much bigger fields than others. The only thing that is the same is the infield.
For Little League (7 - 12 year olds), the distance is 60 feet.
127 feet 3 3/8 inches.
It would be measured in feet.
Bases are different distances apart at different levels of play in baseball. Here is how you can find the distance across the diamond (home to second, or first to third) on any field: What is the distance between bases? Square that answer (multiply it by itself). Double that answer. Find the square root of that answer. The answer you get will be the distance from home to second or from first to third.
The baseball playing field (or diamond) is shaped like a diamond. There are three bases (first, second, and third) are on the corners away from home plate. The distance between these bases (on the basepath or distance straight from first base to second base, or second base to third base, etc.) is 90 feet in Major League baseball. In Little League, the distance in 60 feet.
The distance between the pitcher's mound to the baseball diamond is roughly 60.5 ft. The distance from homeplate to first base is around 90ft. So basically, the homeplate portion of the baseball diamond is 90 degrees. So if you break that in half that's roughly 45 degrees. Then using law of cosine and using the variable C in place of the distance between the pitcher's mound to first base, you get c^2=(60.5)^2+90^2-2(60.5)(90)(Cos 45) which turns out to be c^2=4059.86. Square that and C= roughly 63.717 and that is the distance between the pitcher's mound to first base. The distance between the pitcher's mound and home plate is exactly, not roughly, 60.5 feet. Another respondent asked why it is not a simple 45-45-90 triangle, and the answer to that is because the pitcher's mound is NOT located in the exact center of the diamond. The pitcher's mound is closer to home plate than it is to second base.
90 feet, the same between all bases in baseball. If you mean going around the bases, the shortest distance would be 270 feet, first to second, second to third and third to home.