Getting the right ring size is essential for comfort, not to mention keeping that special piece of jewelry on your finger where it belongs.
Whether you’re buying a ring for yourself or surprising someone with a gift, this guide covers everything you need to know about ring sizes. We’ll review how to measure your finger, how to use a ring size chart conversion, and other factors that can influence the perfect fit.
Understanding ring size measurement methods
Want to know your ring size? There are a few different ways to measure. Here are the most common:
Using a ring sizer (most accurate)
The most precise way to find your ring size is by using a physical ring sizer, a set of rings in graduated sizes. Slip the rings on until you find one that fits comfortably. Try the next half-size up and the next half-size down to find the precise fit.
Using a printable ring size chart
If you already have a ring that fits, you can use a printable ring size chart to measure it. Download and print the chart, then place your ring on the circles to find the one that matches. Make sure you print the chart to scale!
DIY method: string, paper, and ruler
Don’t have a ring sizer or a ring that fits? You can also measure your ring size using a piece of string or paper, a ruler, and a pen. Wrap the string or paper around your finger, mark where the ends meet, then measure the length with a ruler. Use a ring size chart to convert the measurement to your ring size.
Ring size chart and international conversions
Ring sizes aren’t universal. A size 6 ring in the United States isn’t the same as a size 6 ring in the United Kingdom, for example.
That’s why it’s important to understand how ring sizes convert across different countries and regions.
Standard ring sizes
In the U.S. and Canada, ring sizes are usually expressed as numbers, often with half sizes (like 6.5 or 7.5) included. Other countries rely on different systems.
In the UK and Australia, ring sizes are indicated with letters. In Europe, France, and Germany, jewelers use a numbering system based on the ring’s circumference in millimeters. Japan uses its own numbering system, and Switzerland uses a system based on ring diameter.
How to read a ring size chart
Ring size is determined by the inner diameter of the ring. You can find your ring size by measuring your finger and matching that measurement to a conversion chart.
Factors affecting ring size
If you’re trying to measure your ring size at home, keep in mind that a few things can affect the size of your fingers.
Time of day and temperature
Your fingers may swell at certain times of day or when the weather’s hot. For best results, measure your ring size at the end of the day, when your fingers are likely to be at their largest. And try to measure at room temperature, too.
Avoid measuring after a workout, when your fingers may be swollen.
Hand shape and knuckle size
If your knuckle is noticeably bigger than the base of your finger, measure both and then choose a ring size that falls somewhere in the middle. Also, your ring size can vary slightly between the hand you use most and your non-dominant hand.
Band width
Wider bands tend to fit more snugly than narrow bands, so you may need to go up a size. Comfort fit bands also affect the fit, so keep that in mind when you’re figuring out your ideal ring size.
Average Ring Sizes and Buying for Someone Else
If you’re shopping for a ring, it can be helpful to know a little about average ring sizes.
Average Ring Sizes for Women and Men
Most women wear rings sized 3 to 9, with sizes 5, 6, and 7 being the most commonly sold. Size 6 is the most popular.
Men’s rings typically range from size 6 to 13, with sizes 8, 9, and 10½ being the most common. Size 9 is the most popular.
Tips for Buying Rings as Gifts
If you’re buying a ring for someone else, the easiest thing to do is ask them what size they wear. If you want it to be a surprise, you can ask their friends or family for help.
If that’s not possible, you could try borrowing a ring they already wear to get an approximate size.
Ring Resizing and Exchange Policies
So, you’ve measured, checked the chart, and still ended up with the wrong size? Don’t panic! Here’s what to do.
Ring Resizing Options
A jeweler can often resize a ring for you. Keep in mind that resizing could change the thickness of the band slightly.
Exchange Policies
Many jewelers offer a 30-day exchange policy if you buy the wrong size. Also, many manufacturers will resize engagement rings and wedding bands for free during the first year, as long as the change is within their recommended sizing range.
Rings That Can’t Be Resized
Keep in mind that some rings can’t be resized, or can only be resized with great difficulty and expense. These include:
- Eternity Rings: Rings with gemstones set all the way around the band.
- Ornate Bands: Rings with intricate designs or detailing.
- Tungsten Rings: Rings made from very hard materials like tungsten.
Frequently Asked Questions
How big is a size 7 ring?
A size 7 ring has an inner diameter of approximately 17.3 mm (0.68 inches) and an inner circumference of about 54.4 mm (2.14 inches). These measurements can vary slightly depending on the manufacturer, but that’s the general ballpark. Remember that comfort is key, so a professional sizing is always a good idea for accuracy.
How do I calculate my ring size?
You can measure your ring size at home using a few methods. One way is to wrap a string or strip of paper around your finger, mark where it overlaps, and then measure the length against a ring size chart. You can also measure the inside diameter of a ring that already fits you well and compare it to a chart. However, the most accurate method is to visit a jeweler for a professional sizing.
What is a size 52 ring in the US?
A size 52 ring, which is a European size, roughly converts to a US size 6. To be precise, a size 52 ring has an inner circumference of 52 mm. You’ll want to use a ring size conversion chart to accurately convert European or other international sizes to US sizes, as discrepancies can occur.
In Closing
As you’ve seen, you can use a sizing guide, an existing ring, or a printable measuring tool to determine your ring size.
Whatever method you choose, make sure you measure carefully. An accurate measurement is essential for both comfort and satisfaction.
For the best results, measure your finger more than once. If you’re between sizes, it’s usually best to go with the larger size.