⚠ Important: For 100% Ring Size Accuracy, visit your local jeweler for an in-person measurement. All tools on this site are estimates only.
Europe / French / German

EU Ring Size Chart

European ring sizes use inner circumference in millimetres — the world's most logical ring sizing system. Full conversion table included.

The European ring sizing system — also called the French or German system — is based on the inner circumference of the ring in millimetres. A ring with an inner circumference of 52mm is simply called size 52. This makes it the most straightforward and universally logical ring sizing system in the world.

EU Ring Size Chart

EU / FrenchUS / CanadaUK / IRE / AUSJapanDiameter (mm)Circumference (mm)
443F414.144.2
453.5G514.545.6
46.54H714.946.8
484.5I815.348.0
495J915.749.3
50.55.5K1116.150.6
51.56L1216.551.9
536.5M1316.953.2
547N1417.354.4
55.57.5O1617.755.7
578P1718.257.2
588.5Q1818.558.2
599R1918.959.3
619.5S2119.461.0
6210T2219.862.2
63.510.5U2420.263.5
6511V2520.765.0
6611.5W2621.166.2
67.512X2821.567.5
68.512.5Y2921.968.8
7013Z3022.370.1
7114Z+23122.771.3

How European Sizes Work

Because EU sizes are based on circumference in mm, finding your EU size is uniquely simple: just measure your finger circumference in mm and that number is your EU ring size. For example, if your finger circumference is 54mm, your EU size is 54.

The EU system is used across France, Germany, Spain, Italy, the Netherlands, Scandinavia, and many other European countries. However, individual retailers within Europe sometimes also list UK or US sizes alongside EU sizes.

Converting EU to US and UK Sizes

  • EU 49 = US 5 = UK J
  • EU 51.5 = US 6 = UK L
  • EU 54 = US 7 = UK N
  • EU 57 = US 8 = UK P
  • EU 59 = US 9 = UK R
  • EU 62 = US 10 = UK T

Average EU Ring Sizes

  • Women (Europe): EU 50–54, most commonly EU 52
  • Men (Europe): EU 60–66, most commonly EU 62–63
Buying from a European retailer? EU sizes are the easiest to work with — just measure your finger circumference in mm and you have your size. If the retailer only lists EU sizes, use the chart above to verify your equivalent US or UK size.