Gift Guide
Ring Size Guide: How to Find Your Size at Home
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Sizing guide
Find the right fit without leaving home.
Getting a ring size wrong is the most common reason a ring doesn't get worn. This guide covers three real ways to measure your size at home, a standard US size chart, and what to check before ordering a ready-to-order ring.
Use this guide alongside the Rings collection to shop. If you're choosing a birthstone piece, see the Birthstone Ring Guide for style-specific advice.
Quick Answer: How Do You Find Your Ring Size at Home?
Wrap a strip of paper or string snugly around the base of your finger, mark where it overlaps, measure that length in millimeters, and compare it to a standard ring size chart. For a faster check, measure the inside diameter of a ring you already own and wear on that finger, then match it to the same chart.
Key Takeaways
- Two reliable at-home methods: the string/paper method, and measuring a ring you already own.
- Measure at the end of the day, when fingers are slightly larger, for the most consistent result.
- Wider bands generally fit snugger than thin bands at the same labeled size — if choosing a wide style, many people prefer sizing up half a size.
- Ring size can shift slightly with temperature and time of day; measure more than once if the result seems borderline between two sizes.
Method 1: The String or Paper Method
This is the most common at-home method and works well as a starting point.
- Cut a thin strip of paper or a piece of string about 6 inches (15 cm) long.
- Wrap it snugly around the base of the finger you'll wear the ring on — snug enough to stay in place, not so tight it pinches.
- Mark or note exactly where the strip overlaps itself.
- Lay the strip flat and measure the marked length in millimeters with a ruler.
- Compare that measurement (finger circumference) to the chart below.
This method is a genuinely useful starting point, not a lab-precise measurement — string and paper both have a small amount of stretch or give, so treat a borderline result as a signal to check a second way before ordering.
Method 2: Measure a Ring You Already Own
If you already own a ring that fits the intended finger well, this method tends to be more consistent than the string method.
- Choose a ring that currently fits the same finger you're sizing for.
- Measure the inside diameter of the ring — the straight-line distance across the inner circle, not around the outside.
- Compare that diameter in millimeters to the chart below.
A ring that's slightly loose or slightly tight on a different finger than intended won't give an accurate result — only measure a ring that already fits well on the exact finger you're sizing for.
US Ring Size Chart
| US Size | Inside Diameter (mm) | Finger Circumference (mm) |
|---|---|---|
| 5 | 15.7 | 49.3 |
| 6 | 16.5 | 51.9 |
| 7 | 17.3 | 54.4 |
| 8 | 18.1 | 57.0 |
| 9 | 18.9 | 59.5 |
| 10 | 19.8 | 62.1 |
Sizes shown are the most commonly ordered range. If your measurement falls between two sizes, sizing up is generally the safer choice, particularly for wider band styles.
Getting an Accurate Result
- Measure at the end of the day. Fingers are typically at their largest in the evening or after activity, which helps avoid ordering a size that feels tight later.
- Avoid measuring when cold. Cold fingers temporarily shrink, which can throw off a measurement by half a size or more.
- Consider the band width. A wide statement band sits against more of the finger than a thin band, so it can feel snugger at the same labeled size — if you're choosing a wider style, it's worth measuring again with that in mind.
- Measure twice. If the string method and the existing-ring method agree, that's a strong signal. If they disagree, take the larger of the two results.
North & Pearl rings are ready-to-order in the sizes shown on each product page — check the specific product page for exact size availability before ordering, since not every style is offered in every size.
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Frequently Asked Questions
What if my measurement is exactly between two sizes?
Size up rather than down, especially for wider bands. A ring that's slightly loose can often still be worn comfortably; a ring that's too tight may not go on at all.
Does ring size change over time?
Yes — finger size can shift slightly with temperature, time of day, and over longer periods with age or weight changes. If it's been a while since you last measured, it's worth measuring again before ordering.
Is the string method accurate enough to order from?
It's a solid starting point and works well for most people, especially when combined with the existing-ring method as a cross-check. If your result falls right on the line between two sizes, sizing up is the safer default.
Do all North & Pearl rings come in the same sizes?
Available sizes vary by style. Check the specific product page for the exact sizes offered before ordering.
Choosing a ring for someone else? Browse the Rings collection, or start with the Birthstone Ring Guide if you're shopping for a specific birth month.
