HOW TO MEASURE YOUR FINGER SIZE
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There are plenty of ways to do so:
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Measure the inner diameter of a ring you already own.
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Visit a local jewellery store and ask of them to measure your finger size.
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Use a piece of string or a thin strip of paper to wrap around the base of your finger. Mark the spot where the end overlaps using a marker pen. Make sure the loop can slide off the joint of your finger easily. Unwind and measure its length with a ruler. Use the chart below to determine your own ring size.
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Purchase a reusable ring sizer. This option is only recommended if you believe you might need to measure yours or someones elses ring size again in the future.
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Remember:
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Depending on the width and thickness of the ring band, sizes may vary.
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As width and thickness go up so does the size.
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It is always best to measure your fingers in the evening, when they are largest.
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Avoid measuring when you are cold, as fingers could be at least half a size smaller.
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INSIDE DIAMETER
INCHES MM UK US EUROPE
0.52 12.84 D 2.25 41
0.53 13.57 E 2.75 42
0.55 13.97 F 3.25 44
0.56 14.38 G 3.75 45
0.58 14.88 H 4.25 46.5
0.59 15.10 I 4.5 47
0.60 15.49 J 5 48.5
0.62 15.90 K 5.5 50
0.64 16.31 L 6 51
0.65 16.71 M 6.5 52
0.67 17.12 N 6.75 53.5
0.69 17.53 O 7 55
0.70 17.93 P 7.5 56
0.72 18.34 Q 8 57
0.73 18.75 R 8.5 58.5
0.75 19.15 S 9 59.5
0.77 19.56 T 9.5 61
0.78 19.81 U 10 62.5
0.79 20.17 V 10.5 63
0.81 20.61 W 11 65
0.83 20.99 X 11.5 66
0.84 21.32 Y 12 67.5
0.85 21.71 Z 12.5 69
0.87 22.10 Z+1 13 70.5