The standard earring gauge is usually 20 gauge (20G) , which is about 0.8 mm thick. That’s the most common size for regular lobe earrings and everyday studs.

Quick scoop

  • 20G = standard for most pierced ears and regular earrings.
  • 18G = slightly thicker , often seen in some lobe or cartilage piercings.
  • 22G = thinner , used for more delicate styles.

What “gauge” means

Gauge is the thickness of the earring post that goes through the piercing. A smaller number means a thicker post, so 18G is thicker than 20G.

Practical note

If you’re buying earrings for a standard lobe piercing, 20G is the safest default choice. If you want, I can also give you a simple earring gauge chart.