Print at 100% Scale: Click the Print button (or press Ctrl/Cmd + P). In your printer dialog, ensure page scaling is set to 100% or "Actual Size" (do not select "Fit to Page" or "Shrink to Fit").
Verify Calibration: Before cutting, verify scale using the 3 1/2 inches (8.89 cm) ruler guide above the sizer, or place any standard credit card over the calibration box below.
Cut Sizer & Slit: Use scissors to cut out the Ring Sizer along the solid outline. Carefully cut along the dotted line marked "CUT HERE" to create the slit.
Insert Tab: Feed the pointed dark triangle tab through the slit from behind, ensuring the printed numbers face outward.
Slip onto Finger: Place the looped sizer on the desired finger and gently pull the tab until it sits comfortably snug. Ensure it slides comfortably over the knuckle.
Read Your Size: Read the number aligned closest to the cut slit line. This is your accurate US ring size. If you fall between two sizes, choose the larger half-size.
CREDIT CARD CALIBRATION CHECKPlace standard credit or debit card hereStandard Dimensions: 85.60 mm × 53.98 mm
How to ensure 100% accuracy:
Place any standard credit or debit card inside the box to the left. If it matches the width and height, your printer printed at true 1:1 scale without distortion.
Step 4: Thread Tab Through SlitNumbers face outward; pull triangle through
Compare your US ring size against inside diameter (mm), circumference (mm), and international UK/AU and EU sizing standards. Kleora rings are crafted to US comfort-fit specifications.
US
Diam. (mm)
Circ. (mm)
UK/AU
EU
3
14.04
44.1
F
44.0
3.25
14.24
44.7
F½
44.7
3.5
14.45
45.4
G
45.5
3.75
14.65
46.0
G½
46.0
4
14.86
46.7
H
47.0
4.25
15.07
47.3
H½
47.3
4.5
15.27
48.0
I
48.0
4.75
15.48
48.6
I½
48.6
5
15.69
49.3
J½
49.5
5.25
15.89
49.9
K
50.0
5.5
16.10
50.6
K½
51.0
5.75
16.30
51.2
L
51.5
6
16.51
51.9
L½
52.0
6.25
16.72
52.5
M
52.5
6.5
16.92
53.1
M½
53.5
6.75
17.13
53.8
N
54.0
7
17.33
54.4
N½
54.5
7.25
17.54
55.1
O
55.0
7.5
17.75
55.7
O½
56.0
7.75
17.95
56.4
P
56.5
8
18.16
57.0
P½
57.0
8.25
18.37
57.7
Q
57.5
8.5
18.57
58.3
Q½
58.5
US
Diam. (mm)
Circ. (mm)
UK/AU
EU
8.75
18.78
59.0
R
59.0
9
18.98
59.5
R½
60.0
9.25
19.19
60.3
S
60.5
9.5
19.40
60.8
S½
61.0
9.75
19.60
61.6
T
61.5
10
19.81
62.1
T½
62.5
10.25
20.10
63.1
U
63.0
10.5
20.22
63.5
U½
63.5
10.75
20.43
64.2
V
64.0
11
20.63
64.6
V½
65.0
11.25
20.84
65.5
W
65.5
11.5
21.05
65.9
W½
66.0
11.75
21.25
66.8
X
67.0
12
21.46
67.2
X½
67.5
12.25
21.66
68.0
Y
68.0
12.5
21.87
68.5
Y½
68.5
12.75
22.08
69.4
Z
69.5
13
22.28
69.7
Z½
70.0
13.25
22.49
70.6
Z+1
70.5
13.5
22.69
71.0
Z+1½
71.5
13.75
22.90
71.9
Z+2
72.0
14
23.11
72.6
Z+2½
72.5
Expert Sizing Advice from Kleora Gemologists
Time of Day & Temperature: Fingers fluctuate in size throughout the day. Measure in the evening when fingers are at their natural, rested size, and avoid measuring with cold hands.
Wide Band Consideration: If purchasing a ring with a band wider than 4 mm (such as eternity bands or statement bands), order half a size larger for optimal comfort.
Knuckle Clearance: If your knuckle is notably wider than the base of your finger, measure both and select a size in between so the ring slides comfortably on and off.
Complimentary Resizing: Every Kleora ring includes one complimentary professional resizing within 30 days of receipt, ensuring complete peace of mind.