How to Measure Your Finger Circumference
Circumference is the measurement around the base of your finger. Follow these steps to determine your ring size.
You’ll Need:
- A strip of paper, 5.0 mm wide
- A fine-tipped pen or pencil
- A ruler
Step-by-Step Guide
Step 1: Cut a Strip of Paper
Cut a strip of paper that is 5.0 mm wide.
Step 2: Wrap and Mark
Wrap the strip tightly around the base of the desired finger, ensuring it overlaps evenly. For the most accurate result, pull the paper as snugly as possible and mark where the end meets. (Don’t worry! The correct ring size will fit comfortably, even if this measurement feels tight.)
Step 3: Measure the Length
Lay the paper flat and measure the length in millimetres, rounding to the nearest whole millimetre.
This measurement will help you find the correct ring size for a comfortable fit.
Rings
Sizing Method
Diameter |
US |
UK |
Circumference
|
14 |
3 |
F |
44 |
14.6 |
3.75 |
H |
46 |
15.3 |
4.5 |
H1/2 - I1/2 |
48 |
15.6 |
4.75 |
J |
49 |
16 |
5 |
J-K |
50 |
16.2 |
5.5 |
K-L |
51 |
16.5 |
6 |
L - L1/2 |
52 |
16.9 |
6.5 |
M |
53 |
17.2 |
7 |
N |
54 |
17.5 |
7.25 |
O |
55 |
17.8 |
7.5 |
O - P |
56 |
18.1 |
8 |
P |
57 |
18.5 |
8.5 |
P1/2 - Q1/2 |
58 |
18.8 |
8.75 |
R |
59 |
19 |
9 |
R1/2 - S |
60 |
19.8 |
10 |
T1/2 |
62 |
20.4 |
10.5 |
V |
64 |
Ring Size Guide
Tips for Choosing the Right Size
If you're interested in a Diana ring but unsure about sizing, here are some tips for finding the best fit. Start by measuring the largest finger you plan to wear it on, rounding up to the nearest millimetre. A comfortable ring should pass smoothly over your knuckle without being too loose or too tight.
For accurate results, try using our plastic ring sizer.
Opt for a Slightly Larger Fit
As finger size may vary throughout the day due to temperature and other factors, choosing a slightly larger ring size is often a safer choice to prevent a tight fit.
Measure at Different Times of Day
Finger size can change with the time of day, weather, and hydration. To get the most consistent fit, take measurements at multiple times throughout the day.
Sizing Advice for Different Ring Styles
Wide Band Rings
Wide rings may feel snug, so choosing a size larger than your usual fit can make them more comfortable to wear.
Stackable Rings
For stackable rings, one size up from your standard ring size is often ideal for a relaxed, comfortable fit.
Discreetly Discovering Someone Else’s Ring Size
Surprising Someone Special?
Here are a few ways to find out someone’s ring size without spoiling the surprise.
-
Enlist the Help of Family and Friends: With a little help, family or friends can casually suggest trying on rings, giving you a hint about their size.
-
Check Their Existing Rings: If you have access to their jewellery box, measure the diameter of a ring they already wear to get an estimate.
-
Try the String Trick: When they’re asleep, carefully wrap a piece of string around their finger and mark where the ends meet. Bring this to a jeweller for a precise measurement.
Now that you know the basics of finding the perfect size, check out our video below to learn how to style and stack rings effortlessly.