What size hoop earrings should you get?
Hoops are measured across the diameter. Small is roughly 12 to 20mm and sits under the lobe, medium 20 to 35mm, large 40mm and up. For every day, 20 to 30mm is the size most people reach for without thinking about it.
By SIAFRA
A hoop is measured across its diameter, the widest point of the circle, in millimetres. Small is about 12 to 20mm, medium 20 to 35mm, large 40mm and above. If you want one pair you can wear daily without deciding anything, buy in the 20 to 30mm band.
The number is the only thing that matters and it is the thing product photographs cannot show you. A hoop shot against a white background looks the same size whether it is 15mm or 45mm, which is why so many arrive bigger than expected.
What each size actually looks like
| Diameter | Where it sits | What it is for |
|---|---|---|
| 12 to 20mm | Tight to the lobe, barely swings | Sleeping in, the gym, work where nothing should move |
| 20 to 30mm | Just below the lobe | The everyday default. Visible, not a statement |
| 30 to 35mm | Clears the lobe, catches light when you turn | The largest size most people wear daily |
| 40mm and up | Hangs noticeably, brushes the jaw | Deliberate. An outfit decision rather than a habit |
Ranges as described in Blue Nile’s hoop size guide, which puts small at 12 to 20mm, medium at 20 to 35mm and large from around 40mm.
How to measure a pair you already own
Lay the hoop flat on a table and measure straight across the centre with a ruler, not around the curve. That number is the diameter, and it is what every listing means when it says 30mm. If the pair you reach for most is 24mm, you now know what to buy again.
Face shape, honestly
Most face shape advice in this category is invented. The part that holds up is simple: a wide hoop adds width where it sits, a longer oval one adds length. If you are unsure, the 20 to 30mm band is the one that suits the most people, which is why it outsells everything else.
Weight matters more than size
A large hollow hoop can be more comfortable than a small solid one. What makes a hoop uncomfortable by the afternoon is weight at the lobe, not diameter, so the question to ask a seller is what the pair weighs rather than only how wide it is.
What SIAFRA publishes
Not the diameters, yet. Dimensions and weights are confirmed with the first production run and published on each piece page before the release opens. Anyone selling you a hoop without a millimetre figure is asking you to guess, and that includes us until those numbers exist.
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