Jersey Question I Need Assistance With

I'm a member of the American Outlaws and our chapter is creating a jersey for our chapter members. Our logo is circular so as we're sending our crest out to be made into patches, the Union patch size is perfect to gauge if our patch is going to look right on a jersey as they both have the same circular outline.

I'm trying to find the dimensions of the Union logo as it sits on a standard jersey. Unfortunately, searching online is not giving me any assistance.

Ideally, I just need the actual diameter in inches of the logo. If anyone can measure the crest size on their kit, it'd help me a lot.

Thank you in advance for any assistance!