depends on the size, professionals play with a size 5, circumference of 27-28 inches
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∙ 15y agoWiki User
∙ 9y agoThe central diameter of a NFL football is 178 millimeters, and its length is 300 millimeters. The weight of this football is about 14 to 15 ounces.
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∙ 8y agoA Size 3 football is on the smaller side. This is the size of a standard football for team handball.
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∙ 15y ago20 inches
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∙ 12y ago4-5 inches
Some countries use a full-size ball, but many recognize that U12 players might not be able to properly handle a full-size ball. Therefore, the USSF recommends that a Size 4 ball be used, which is about 2 inches smaller in circumference than a full-size (Size 5) ball.
A soccer ball is 27 to 28 inches in circumference. Circumference is pi times diameter, or 2 times pi times radius. Radius = circumference divided by (2 times pi).
Circumference of soccer ball = 0.6858m 2*pi*r = 0.6858 r=0.109m V=(4/3)*pi*(0.109)^3 V=0.005425m^3
Circumference of pool ball: 2*pi = 6.283 inches rounded to 3 decimal places
for people over 12 years old its 5. 9-11 is size 4. and anything less 3, 2, or 1. (i think your question should be What is the correct size for a soccer ball?)
According to USBC the maximum circumference of a tenpin bowling ball may not exceed 2 foot, 3 inches.
mini's-training ball used to work on touch 2-5 sizes depends on your age what regulation ball is yours size 5 ages 12 and up