How many different sizes do RFID tags come?

RFID tags can be as small as 0.5"x0.5" and as large as 4"x6". Smaller tags generally have a shorter read range but are often a great solution for close-range inventory management with a handheld inventory management system. An average size for an RFID tag with a good read range is about 4"x.05" 


SimplyRFiD recommended tag sizes:

NOX-1 RFID Tag 4.0" x 0.5"

TX-2 RFID Tag 4.0" x 2.0" 

TC-1 RFID Tag 4.0" x 2.0" 

NOX-TM4 RFID Tag 38mm x 10mm x 2.8mm 

TS-1 RFID Tag 4.0" x 6.0"