09 de noviembre, 2026

Hoop Earring Sizes on One Chart, 10mm to 50mm

Hoop earring sizes are measured in millimeters across the hoop, and ours run from 10mm to 50mm. A 10mm to 15mm hoop sits close to the lobe for everyday wear and stacking. The 20mm to 25mm range is the classic everyday hoop. Anything from 30mm up makes a statement. Thickness matters too, because it changes how big a hoop looks.

If you've ever ordered a pair online and opened the box to find them bigger or smaller than you pictured, the number alone probably didn't help. That's why we've put our own best-selling hoops on the chart below, row by row, so you can see which pairs come in each size before you choose.

Diameter and Thickness, the Two Numbers Behind Every Hoop

Every hoop has two measurements, and both are in millimeters. Diameter is the distance across the hoop, from top to bottom. Thickness is the width of the band itself.

When a product name carries a number, that's the diameter. Our Bianca 25mm hoops, for example, measure 25mm from top to bottom. Thickness is the number people forget, and it matters just as much. Thickness guides from jewelers describe a range from thin hoops at about 1mm to chunky ones of 10mm or more.

To measure a pair you already own and love, lay one earring flat on a ruler. Measure straight across the outside edge, top to bottom, for the diameter. Then measure the band at its widest point for the thickness. Now you've got the two numbers to shop by.

Hoop Earring Size Chart

Here are the sizes side by side, with the hoops we sell at each one.

Size	How it sits	Our hoops at this size
10mm	Close to the lobe, small enough for a second piercing	Monica 10mm
14mm to 15mm	Just below the lobe, easy to wear every day and to stack with studs	Giselle 15mm, Bethany 15mm, Bianca 14mm
20mm	A small classic hoop you'll notice from across the table	Bianca 20mm, Amy 20mm
22mm to 25mm	The everyday classic, polished enough for dinner	Lauren 22mm twisted, Nadia 24mm, Bianca 25mm
30mm	A bolder hoop that falls well below the lobe	Amy 30mm
40mm to 50mm	A true statement hoop	Monica 40mm and 50mm

The 14mm to 15mm row is where you'll find the Giselle hoops, our second most-bought hoop over the 90 days to mid-October, set with Swarovski crystals in 18k white, yellow or rose gold plating. Bethany sits on the same row with a slimmer band.

The Giselle 15mm hoops, shown front and side

At the other end, the Monica set comes in 10mm, 40mm and 50mm, so one style covers both the smallest and the largest rows. In between, the Lauren twisted hoops put a twist on the classic hoop at 22mm.

Ready to pick yours? Shop all our hoop earrings by size. There are more than 70 listings in the collection, from 10mm to 50mm.

What Is the Best Size for Hoop Earrings?

For most women, the best everyday hoop is 20mm to 25mm. It's big enough to read as a hoop from across the room and small enough to wear from a morning meeting straight through dinner. Choose 10mm to 15mm for a second piercing or a stack, and save 30mm and up for nights out.

That middle size is also what our customers reach for first. The Bianca 25mm was our most-bought hoop over the 90 days to mid-October, and it led our earrings, hoops, white gold and rose gold categories too. It's a slim pavé hoop set with Swarovski crystals, at $39.99 a pair.

The Bianca hoops, our best-selling hoop

If you'd like the same look a little smaller, Bianca also comes in 14mm and 20mm. See the Bianca hoops in all three sizes and choose the one that fits how you dress most days.

Smaller lobes change the math a little. A lighter, slimmer hoop usually sits better on a small lobe than a wide, heavy one, and our guide to hoops for small earlobes goes through the options.

Inches to Millimeters

Some sellers list hoops in inches. These are the conversions we use, rounded to the nearest half millimeter, with 1 inch equal to 25.4mm.

3/8 inch is about 9.5mm, close to our 10mm size
1/2 inch is about 12.5mm
5/8 inch is about 16mm
3/4 inch is about 19mm
1 inch is about 25.5mm, so a Bianca 25mm is roughly a one-inch hoop
2 inches is about 51mm, the size of our largest Monica hoops

Why a 2mm Hoop Reads Smaller

Thickness changes how big a hoop looks, even when two pairs share the same diameter. A thin band looks delicate and a wide band looks bold.

You can see it on our own 15mm row. The Bethany band is 3mm wide and the Giselle band is 5.5mm wide, according to their product pages, so Giselle looks fuller on the ear at the same size.

The Monica hoops go the other way. They're 2mm thick in all three sizes, which is why even the 50mm pair looks light rather than heavy.

The Monica hoops in the 10mm size

Deciding between two sizes that are only a few millimeters apart? We've put 17mm and 20mm hoops side by side so you can see how much those few millimeters change.

FAQ

What is the best size for hoop earrings?

For everyday wear, most women are happiest with 20mm to 25mm. Go smaller, 10mm to 15mm, for a second piercing or stacking, and 30mm and up when you want a statement.

Is a 2mm earring too small?

No. A 2mm measurement on a hoop usually describes the band's thickness, and a 2mm band is simply a fine, delicate hoop. Our Monica hoops are 2mm thick and come in sizes up to 50mm across.

What is mm in earrings?

It's millimeters. On a hoop, the main number is the diameter from top to bottom, and a second number, when given, is the thickness of the band.

How big is a 3/8 hoop?

A 3/8 inch hoop is about 9.5mm across. That's close to a 10mm hoop, which sits snugly near the lobe.