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Softball Performance – What is the Diameter of a Softball?

What is the diameter of a softball?By Coach Marc

What is the diameter of a softball? That’s funny because that’s twice this month that we receive emails from young softball players asking this question.

You see, we have many young softball players on our newsletter mailing list (you should subscribe if you’re not – it’s free!) and many of these young ladies decide to do school papers on topics related to softball and are looking for facts about the game online.

So what is the diameter of a softball? As you know there are two different sizes for softballs:

1) The small ball – which a circumference of 11 inches and a diameter of 3.5 inches. This ball is used in youth softball – usually 10 and under.

2) The big ball – which has a circumference of 12 inches and a diameter of 3.8 inches. This regular size softball used by all other players.

Comments on Softball Performance – What is the Diameter of a Softball? »

April 26, 2010

Kevin Beese @ 1:05 pm

Too many younger leagues go to the bigger ball too soon. Let the kids develop with the small ball.

February 2, 2011

Lilhef-67 @ 6:50 pm

Be sure to protect your softball/baseball bat http://WWW.THEBATBOY.COM

November 14, 2012

Tyler Perelman @ 2:32 pm


June 27, 2013

Mark @ 8:32 am

Don't forget about 16″ softball in Chicago!!!

November 29, 2013

Cleaning Up the Final Frontier | Astronotes @ 10:28 am

[…] of up to 17 000 mph (27 200 km/h)! Roughly 20 000 of these hazardous particles are larger than a softball so you could imagine the damage a softball alone could do traveling at such a speed! Needless to […]

November 25, 2015

Lindsey @ 9:21 am

If the formula for circumference is C=2piR , and C=12 then the formula would read 12=2piR. Then, if we divide both sides by 2pi, we get that R=6/pi which would be 1.9098593171.

April 6, 2016

Joey @ 11:51 am

That’s because people in Chicago can’t hit a regular sized ball

October 15, 2016

evin @ 10:12 am

Or because they don’t use gloves to field the ball @joey

April 11, 2017

Katie @ 3:32 pm

What is the diameter of a 12 inch ball???

September 12, 2017

love spell @ 12:44 am

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December 18, 2017

Bob @ 1:13 pm

12/3.14 = 3.82″

August 21, 2018

Ken @ 7:53 am

When I was in elementary school in the 1960’s, we played at recess with what we called a “baby indoor” ball. It was bigger than a baseball but smaller than a softball. Is that familiar to anyone?

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