Rings Size Guide

Follow these instructions to find your perfect size. Please note that different countries use different sizes, so please compare and convert your ring size using the conversion chart below.

Measure the circumference of the chosen finger:

  • 1.

    Take a tape measure, a piece of string, or a strip of paper.

  • 2.

    Wrap it around the finger on which you will wear the ring, and mark the point where it joins.

  • 3.

    Lay the string or paper strip on a flat surface and use a ruler to measure the length up to the mark.

  • 4.

    Refer to the chart below to match the measurement with the closest Mondo Cattolico ring size.

Alternatively, use an existing ring and measure the inner diameter:

1. Find a ring that fits comfortably on the finger where you intend to wear your new ring.

2. Measure the inner diameter of the ring using a ruler or tape measure. To do this, make sure to use a ruler with millimeter measurements (mm). Place the ring on top of the ruler and measure the inside of the circle, specifically the part that comes into contact with your finger.

Ring Size Chart – European Sizes

Conversion chart

Europe

  • ⌀ mm — Size

    14.01 — 44
    14.33 — 45
    14.65 — 46
    14.97 — 47
    15.29 — 48
    15.61 — 49
    15.92 — 50

  • ⌀ mm — Size

    16.24 — 51
    16.56 — 52
    16.88 — 53
    17.2 — 54
    17.52 — 55
    17.83 — 56

    18.15 — 57

  • ⌀ mm — Size

    18.47 — 58
    18.79 — 59
    19.11 — 60
    19.43 — 61
    19.75 — 62
    20.06 — 63
    20.38 — 64

  • ⌀ mm — Size

    20.70 — 65
    21.02 — 66
    21.34 — 67
    21.66 — 68
    21.97 — 69
    22.29 — 70
    22.61 — 71

United States & Canada

  • ⌀ mm — Size

    14.01 — 3
    14.5 — 3.5
    14.97 — 4
    15.29 — 4.5
    15.61 — 5
    16.1 — 5.5

  • ⌀ mm — Size

    16.56 — 6
    16.88 — 6.5
    17.2 — 7
    17.7 — 7.5
    18.15 — 8
    18.47 — 8.5

  • ⌀ mm — Size

    19.0 — 9
    19.43 — 9.5
    19.75 — 10
    20.06 — 10.5
    20.6 — 11
    21.02 — 11.5

  • ⌀ mm — Size

    21.34 — 12
    21.66 — 12.5
    22.29 — 13

    22.61 — 13.5

UK, Australia & South Africa

  • ⌀ mm — Size

    14.01 — F½
    14.33 — G
    14.5 — G½
    14.65 — H
    14.97 — H½
    15.1 — I
    15.29 — I½
    15.5 — J
    15.61 — J½
    15.92 — K

    16.1 — K½

  • ⌀ mm — Size

    16.24 — L
    16.56 — L½
    16.7 — M
    16.88 — M½
    17.1 — N
    17.2 — N½
    17.52 — O
    17.7 — O½
    17.83 — P

    18.15 — P½
    18.3 — Q

  • ⌀ mm — Size

    18.47 — Q½
    18.79 — R
    19.0 — R½
    19.11 — S
    19.43 — S½
    19.6 — T
    19.75 — T½
    20.0 — U

    20.06 — U½
    20.38 — V
    20.6 — V½

  • ⌀ mm — Size

    20.70 — W
    21.02 — W½
    21.2 — X
    21.34 — X½
    21.6 — Y
    21.66 — Z
    21.97 — Z½
    22.4 — Z+1
    22.61 — Z+2

Useful tips

There are a few environmental and physical factors that should be taken
into consideration before deciding on the size of the ring you want to buy,
but remember that when it comes to guessing your partner’s ring size,
guess on the large side as it’s easier to size a ring down.

  • Average ring sizes

    Keep in mind the average ring size range for women is between 49 and 54 (EUR), while sizes commonly range from 57 to 62 (EUR) for men. If you have no other information available, it’s best to choose between these ranges.

  • Time of day

    An ideal time to measure their finger size is in the evening. Most people’s fingers tend to be at their largest in the evening and smaller in the morning. Measuring your partner’s finger size in the evening will guarantee a comfortable fit.

  • Optimal temperature

    Fingers tend to react to temperatures, and can change size depending on the weather. The cold winter air will shrink fingers while the opposite happens in summer or when it’s warm and humid. Avoid measuring finger size outside in the very cold or very hot.

  • Fingers expand and contract

    Other factors can cause fingers to grow such as exercising, water retention, pregnancy, ageing, and arthritis. Weight loss and low temperatures can cause fingers to decrease in size.

  • Thicker bands

    Thicker ring bands (larger than 6mm) will fit tighter. It is advised to always go for half a size up when purchasing a thicker band, for the ring to be comfortable.
*Please note that the information in the guide is provided for guidance only and Mondo Cattolico is not responsible for any errors that occur as a result of using this guide.

Have you bought the wrong size?

No problem, proceed with the return and we will send you a ring in a different size

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