Ring Size Guide

Finding the correct ring size is an important part of ordering a ring that fits comfortably. Whether you're purchasing a memorial ring, wedding band, or another keepsake, this guide will walk you through a few simple ways to determine your ring size.

If you're unsure, a local jeweler can usually measure your finger in just a few minutes, or you can use one of the methods below at home.

2 min read Updated July 2026
Ring Size Guide
Three Ways to Find Your Ring Size

There are several easy ways to determine your ring size. Whether you visit a local jeweler, measure a ring you already own, or use our printable ring size guide, these methods can help you choose the size that's right for you.

💍

Visit a Local Jeweler

The most accurate method is to have your finger professionally measured using a ring sizing tool. Most local jewelry stores provide this service quickly and often at no charge.

📏

Measure a Ring You Already Own

If you have a ring that fits the intended finger well, measure its inside diameter and compare it to our sizing chart.

🖨️

Use Our Printable Ring Size Guide or Request a Free Ring Sizer

Download and print our ring size guide at 100% scale, then follow the included instructions to compare your finger or an existing ring to the sizing chart. You can also contact us for a Free Ring Sizer.

Printable sizing tool

Download Our Printable Ring Size Guide

Print the guide at 100% or Actual Size, then use the calibration mark and sizing circles to help determine your ring size at home.

Ring Size Chart

If you know the inside diameter of a ring that fits comfortably, compare it to the chart below to determine the corresponding U.S. ring size.

U.S. Ring Size Inside Diameter (mm) Circumference (mm)
5 15.7 49.3
5.5 16.1 50.6
6 16.5 51.9
6.5 16.9 53.1
7 17.3 54.4
7.5 17.7 55.7
8 18.1 57.0
8.5 18.5 58.3
9 18.9 59.5
9.5 19.4 60.8
10 19.8 62.1
10.5 20.2 63.4
11 20.6 64.6
11.5 21.0 65.9
12 21.4 67.2
12.5 21.8 68.5
13 22.2 69.7
a

Get the most accurate fit

A Few Extra Steps Can Make Sizing More Accurate

Ring sizing is simple, but small details can affect the fit. Taking a little extra time before ordering is especially important for personalized and memorial rings that may have limited resizing options.

Measure More Than Once

Finger size can change slightly throughout the day. Measure more than once and avoid sizing when your hands are unusually hot, cold, or swollen.

Consider Band Width

A wide band can feel more snug than a narrow ring in the same size. If you are between sizes, consider the width and shape of the specific ring before ordering.

Think About the Knuckle

The ring should pass over your knuckle without excessive force while still fitting securely at the base of your finger.

Size the Exact Finger

Measure the finger and hand where the ring will actually be worn. The same finger on your opposite hand may be a different size.

Prefer a physical sizing tool?

Request a Free Ring Sizer

Jewelry Keepsakes offers a complimentary ring sizer that we can mail to you upon request. It is an easy option if you would rather confirm your size at home before placing your order.

Using the printable guide

Make Sure Your Printer Is Not Scaling the Guide

Print the sizing guide at 100% or Actual Size. Printer scaling can change the ring circles enough to give you an incorrect measurement.

Print at 100% scale Do not select “Fit to Page” or any automatic scaling option.

The line shown above is designed to represent 2 inches (50.8 mm). When using the downloadable sizing guide, verify its printed calibration mark with a physical ruler before measuring your ring or finger.

Especially important for memorial jewelry

Confirm the Size Before Custom Work Begins

  • Confirm the size before personalization or custom production begins.

  • Ask whether the selected metal and design can be resized.

  • Permanently Sealed rings and some contemporary metals may have resizing limitations.

  • Engraving, stones, resin, or other custom details may also affect future resizing options.

  • If you are uncertain, request our free ring sizer or visit a local jeweler before ordering.

Helpful Tips Before Ordering
  • Measure the finger the ring will be worn on.
  • Print the guide at 100% scale (do not select "Fit to Page").
  • If you're purchasing as a gift, measuring a ring that already fits is often the easiest method.
  • If you're unsure, a local jeweler can quickly measure your finger for the most accurate fit.

Ring Sizing Faqs

Can I measure a ring instead of my finger? +

Yes. Measuring the inside diameter of a ring that already fits the intended finger is an easy way to determine your ring size using our chart.

How do I know if my printable guide printed correctly? +

Print the guide at 100% scale. The included reference measurement can be checked with a ruler to confirm it printed accurately.

What if I don't know my ring size? +

Most local jewelers can measure your finger in just a few minutes, often at no charge. Additionally, we are happy to send a free ring sizer to help you determine your ring size.

Need Help?

If you have questions about choosing the correct ring size, our customer service team is happy to help.

Contact Our Team