0 Item in Cart
My Account | Hi Guest, Login?

    Ring Sizing Chart

    Ring Sizing

    When you don't know your size you can try this ring sizing conversion chart. It would be best to use a string and hold it taught around your finger to get an accurate size and mark the points where the string touches. Exchanges are possible when you have ordered the wrong size but will incur a restocking fee (refer to the OST Return Policy for more info).

     

    Inside Diameter
    (inches)

    Inside Diameter

    (mm)

    Inside Cirumference

    (inches)

    Inside Circumference

    (mm)

    USA,

    Canada, Mexico sizes

    0.602

    15.29

    1.89

    48

    4.5

    0.618

    15.7

    1.94

    49.3

    5

    0.634

    16.1

    1.99

    50.6

    5.5

    0.65

    16.51

    2.04

    51.9

    6

    0.666

    16.92

    2.09

    53.1

    6.5

    0.682

    17.32

    2.14

    54.4

    7

    0.698

    17.73

    2.19

    55.7

    7.5

    0.714

    18.14

    2.24

    57

    8

    0.73

    18.54

    2.29

    58.3

    8.5

    0.746

    18.95

    2.34

    59.5

    9

    0.762

    19.35

    2.39

    60.8

    9.5

    0.778

    19.76

    2.44

    62.1

    10

    0.794

    20.17

    2.49

    63.4

    10.5

    0.81

    20.57

    2.54

    64.6

    11

    0.826

    20.98

    2.59

    65.9

    11.5

    0.842

    21.39

    2.65

    67.2

    12

    0.858

    21.79

    2.7

    68.5

    12.5

    0.874

    22.2

    2.75

    69.7

    13

    0.89

    22.61

    2.8

    71

    13.5

    0.906

    23.01

    2.85

    72.3

    14

    0.922

    23.42

    2.9

    73.6

    14.5

    0.938

    23.83

    2.95

    74.8

    15

     

    Remember to take into consideration your environment and personal health when sizing a ring. Different factors will affect the size of your fingers. For example, hot weather or recent exercise can cause your fingers to swell a bit and cold weather can cause them to "shrink" a little. Also pregnancy and other hormonal differences can make your fingers swell and thus causing you to measure an incorrect size. Ideally it's best to measure in the afternoon or early evening. Always take the measurement at your finger's widest point (usually at the knuckle). It's often best to measure from a ring that you already wear and that fits properly. Measure the diameter of this ring and compare it to the sizing chart for best results.