Free Ring Sizer + Ring Size Chart | VD Jewellery

Find Your Perfect Ring Size

Use our easy at-home methods and interactive calculator to discover your exact US ring size — before you order.

Step One

How to Measure Your Ring Size at Home

No ring sizer? No problem. Choose one of our three simple methods — each takes less than 2 minutes.

01
Most Popular

String or Paper Strip Method

Wrap a thin strip of paper or string around the base of your finger. Mark where the ends meet, lay flat against a ruler, and measure the length in millimetres. Use our calculator below to convert to your US size.

02

Existing Ring Diameter

Place a ring that already fits perfectly on a flat surface. Using a ruler, measure the inside diameter straight across the widest point in millimetres. Enter the measurement below to find your US size instantly.

03

Printable Ring Sizer

Print our to-scale ring sizer chart, cut out the circles, and slide them onto your finger. The circle that fits most comfortably over your knuckle is your size. See the Printable Sizer section below.

💡 Pro Tips for an Accurate Measurement

  • Measure at the end of the day — fingers are slightly larger in the evening due to warmth and activity.
  • Avoid measuring when cold, as fingers shrink and give a smaller reading.
  • If between two sizes, always size up for comfort.
  • Wide bands (6 mm+) fit tighter — consider going half a size up.
  • Measure the specific finger you plan to wear the ring on; each finger differs.
  • For knuckle-fit rings, measure at the widest point of the knuckle.
Visual Guide

Measure with a String — Step by Step

Follow these four simple steps to get an accurate circumference measurement at home.

1
〰

Wrap the String

Cut a thin strip of paper or use a piece of string. Wrap it snugly around the base of the finger you wish to size.

2
mark

Mark the Overlap

Where the end of the paper or string meets the wrap, make a small pen mark at the overlap point.

3
mm

Measure in mm

Unroll the string or paper and lay it flat against a ruler. Measure from the end to your mark in millimetres.

4
7

Get Your US Size

Enter the measurement in our calculator below. Your US ring size will be displayed instantly — easy!

Interactive Tool

Ring Size Calculator

Enter your measurement to instantly find your US ring size. Choose your method and unit below.

— US
Diameter — mm
UK / AUS / NZ
—
EU Size
—
Japanese
—
Print at Home

Printable Ring Sizer

Print this page at 100% scale (no "fit to page") and compare the circles to your existing ring or finger.

To-Scale Ring Circles
414.9
4½15.3
515.7
5½16.1
616.5
6½16.9
717.3
7½17.7
818.1
8½18.5
918.9
9½19.4
1019.8
1120.6
1221.4
50 mm Reference Bar
* Print at 100% actual size — do not scale to fit page.
How to Use the Printable Sizer
1

Print this page — set your printer to 100% scale / actual size. Do NOT select "fit to page."

2

Verify accuracy: measure the reference bar — it should be exactly 50 mm long when printed correctly.

3

Place your existing ring over each circle. The circle whose inner edge aligns with your ring's inner edge is your size.

4

Alternatively, cut out a circle and slide it onto your finger. Choose the smallest circle that passes over your knuckle.

Reference Chart

US Ring Size Conversion Chart

Find your equivalent size across all international sizing systems — US, UK/AUS, EU, and diameter in mm.

US Size Diameter (mm) Circumference (mm) UK / AUS / NZ EU Size Japanese
4 14.9 46.8 H½ 47 7
4½ 15.3 48.0 I½ 48 8
5 15.7 49.3 J½ 49½ 9
5½ 16.1 50.6 K½ 51 10
6 16.5 51.8 L½ 52 11
6½ 16.9 53.1 M½ 53 12
7 17.3 54.4 N½ 54½ 13
7½ 17.7 55.7 O½ 56 14
8 18.1 56.9 P½ 57 15
8½ 18.5 58.2 Q½ 58 16
9 18.9 59.5 R½ 59½ 17
9½ 19.4 60.8 S½ 61 18
10 19.8 62.1 T½ 62 19
10½ 20.2 63.4 U½ 63½ 20
11 20.6 64.6 V½ 65 21
11½ 21.0 65.9 W½ 66 22
12 21.4 67.2 X½ 67 23
13 22.2 69.7 Z 70 25

* Measurements are inner diameter / circumference. Minor variations (±0.2 mm) may occur between manufacturers.

Questions Answered

Frequently Asked Questions

Everything you need to know about ring sizing before you purchase.

The most common US women's ring size is between size 6 and size 7, with size 6 being the most frequently ordered. However, ring sizes vary significantly by individual, so we always recommend measuring your finger using one of our methods above rather than ordering an average size.
For men, the most common US ring sizes range from size 9 to size 11, with size 10 being the average. Men's fingers tend to be wider and may also vary depending on the width of the band — wider bands typically require sizing up by half a size.
When in doubt, always size up. A ring that is slightly too large can be resized down more easily than one that is too small. For comfort-fit bands, size up half a size as they fit slightly smaller than standard bands due to their domed interior.
Most plain metal bands can be resized one to two sizes up or down by a professional jeweller. However, rings with pavé diamonds around the full band, eternity rings, or rings with certain design elements may not be resizable. Please contact us before purchasing if resizing is a concern.
Yes — fingers can change size due to temperature, time of day, weight fluctuations, pregnancy, and age. It's best to measure your finger multiple times at different times of day and in different temperatures to get the most accurate average. Evening measurements in warm conditions tend to give the most accurate fit for everyday wear.
Wider bands sit higher on the finger and therefore feel tighter than narrow bands of the same diameter. As a general rule: for bands 6 mm or wider, size up by half a size. For bands 8 mm or wider, size up by a full size. Our product pages specify whether this adjustment is needed for each item.

Ready to Find Your Perfect Ring?

Browse our curated collection of fine jewellery — sized just for you.

Shop All Rings