Ring Sizing Guide: How to Measure Your Ring Size at Home

By JTV

Published: 10/05/2022

Modified: 02/26/2024

Don't let the uncertainty of ring sizes hold you back. Our comprehensive article provides step-by-step instructions and essential tips to help you find the perfect fit for your finger.

ring ring sizing

Ring Sizing Guide: How to Measure Your Ring Size at Home

Finding the dazzling rings of your dreams has never been easier than with the internet. However, when it comes to the right ring sizes… that’s where a lot of people get stuck. You might have a lot of questions about how to size a ring accurately so that you can make confident purchases online.

JTV is here to help! The “Getting Started” section will give a general overview of ring sizes in the United States and some of our best ring measuring tips. Then, read through our three recommended methods of sizing your rings at home.

Getting Started

Sizing Information

U.S. ring sizes are determined by a scale of numbers and half numbers, usually between sizes 3 and 13.5 for adults. Each ring size matches the width of your finger in millimeters.

Women’s rings are usually between 3 and 9. Men’s rings are sized between 8 and 14.

Measurement Tips

Measure your ring size in the morning when your body is the coolest. Heat can make your fingers swell and affect the measurement.
Measure the finger you are going to wear your ring on. Every finger size can be different, even the same fingers on opposite hands.
Allow some additional room for added comfort. The wider the band, the tighter a fit so keep this in mind when taking measurements of your size.
Find a ring size that will fit over your knuckles but isn’t loose enough to fall off.

Three Simple Ring Sizing Methods

1) Measure a Ring You Already Own

There are two easy ways you can measure a ring you already own and for both ways, you will need to download and print our ring sizing guide.

This PDF will provide you with multiple options on sizing your ring, allowing you to double check the size of your ring so you can buy more rings that will fit similarly.

This method is perfect if you’re looking to surprise someone with a ring, because all it takes is:

A ring that already fits comfortably
Ruler
Printed copy of the ring sizing guide

Download our ring sizing guide (JTV’S RING SIZING GUIDE) to get started with this method.

Option 1: Measure the inside diameter of the ring. Take the measurement in millimeters and finally, using the ring sizing guide, match the ring sizing range listed on the guide to the appropriate ring size.

Option 2: If you have a ring that fits perfectly already, simply take the ring and place it over the circles on the chart or on the images of ring sizes below. Once you find the circle that matches the area inside your ring, you will have its approximate measurement!

2) Measure Your Ring Size Using a String

If you don’t have a ring to size, measure your finger to get the ring size just right.

Gather the following materials before you get started:

String or a paper strip
Pen or marker
Ruler
JTV’s ring sizing chart (DOWNLOAD RING SIZING STRING CHART)

how to measure ring length with a string infographic

Step 1:

Cut a piece of string (or a paper strip) that is at least 3 inches long.

Step 2:

Wrap it around your finger at the base of the knuckle and using a pen, mark where the two ends overlap.

Step 3:

Lay the string flat and using a ruler, measure the length in millimeters. Reference the ring sizing chart to find the size that corresponds.

3) Measure Your Ring Size with a Printable Ring Sizer

Don’t have a ruler? That’s alright! You can still find your ring size with JTV’s printable ring sizer.

Gather the following materials before you get started:
Scissors
JTV’s ring sizing chart (PRINT RING SIZER)