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the comparison table between veterinary needles gauges and veterinary needle sizes?

the veterinary needles gauges is the North America Standard, using the G or inch as the unit of measurement,  the veterinary needle sizes are the international standard, using the meter as the standard, the comparison table between veterinary needles gauges and veterinary needle sizes is as following:

Veterinary Needle Gauges (Diameter) Veterinary Needle Sizes (Diameter)
14G 2.0mm
15G 1.8mm
16G 1.6mm
17G 1.4mm
18G 1.2mm
19G 1.0mm
20G 0.9mm
22G 0.7mm
23G 0.6mm
24G 0.55mm
25G 0.5mm
26G 0.45mm
27G 0.4mm

 

Veterinary Needle Inch (Length) Veterinary Needle Sizes (Length)
1 / 2 “ 13mm
5 / 8 “ 15mm
3 / 4 “ 20mm
1 « 25mm
1 1/2 ” 40mm
2 « 50mm