Reviewed by Baby Gold's Jewelry Team
Getting your ring size right is one of the most important parts of buying jewelry online, and one of the easiest things to get wrong. Here's everything you need to know to get an accurate size at home.
✨Ordering a wider band? Size up. Thicker rings fit tighter than thin ones at the same stated size.
Your Finger Size Isn't Fixed
It shifts throughout the day, changes with temperature, and can even vary depending on what you ate or how active you've been. A single quick measurement isn't always reliable.
Time It Right
Fingers are smallest in the morning and swell throughout the day. For the most accurate read, measure in the evening.
Cold Hands Read Smaller
Cold temperatures constrict blood vessels, making fingers measure smaller than their true size. Warm up before measuring.
Avoid Exercise, Salty Food & Alcohol
All three cause temporary fluid retention, which makes fingers swell. Avoid sizing right after a workout or a heavier meal.
Band Width Matters
A wider band sits tighter than a thin one at the same size. For every 2mm increase in width, consider sizing up a quarter to half size.
Between two sizes? Size up. A slightly loose ring can be professionally resized down more easily than a tight one can be sized up.
Band Thickness & Stacking
Thin Bands Layer Best
Delicate, thin bands like the ones shown here are easiest to stack across multiple fingers or pile onto one, since they sit closer to the finger and don't compete for space the way a thicker band would.
Sizing Can Vary Finger to Finger
If you're stacking across several fingers, remember each one may be a slightly different size. Measure each finger separately rather than assuming one size fits all.
Mixing Widths in One Stack
Pairing a thin band with a chunkier piece on the same finger? Order them in slightly different sizes rather than matching, since each width fits differently even on the same finger.
Other Things to Consider:
- Wider bands: browse our signet rings and statement rings with the sizing-up guidance above in mind.
- Knuckle vs. base fit: a ring needs to comfortably pass over your knuckle, not just sit well at the base. If your knuckle is noticeably larger, size for the knuckle to clear it with light resistance.
- Stacking rings are often worn slightly looser than a single ring, since they're meant to move together rather than sit perfectly snug.
- Existing ring as reference: if you're comparing to a ring you already own, use one with a similar band width to the one you're ordering for the most accurate result.
Measuring at Home
The easiest way is to measure a ring you already own that fits well on the finger you're sizing for. For the most accurate result, use a ring with a similar band width to what you're shopping for.
If you don't have a ring to measure, a piece of string or a paper strip works just as well. All you need after that is a ruler.
Don't have a ruler? Print one out here.
Method 1: Using an Existing Ring
- Pick a ring you already own that fits well on the finger you're sizing for.
- Place the ring on a ruler or millimeter measuring tape, laying it flat.
- Measure the inner diameter, from one inner edge straight across to the other.
- Compare that measurement (in millimeters) to our ring size conversion chart to find your size.
Method 2: String or Paper Strip
- Cut a thin strip of string or paper about 6 inches long.
- Wrap it snugly around the base of the finger you're sizing - not too tight, not too loose. It should slide off over your knuckle without much resistance.
- Mark the exact point where it overlaps.
- Lay it flat and measure the length from the starting point to your mark, in millimeters.
- Compare that measurement to our ring size conversion chart to find your size.
- Repeat two to three times to confirm a consistent result.
Note: measure two or three times, ideally at different points in the day, and go with your most consistent result. If your results fall between two sizes, size up.
Ring Sizing FAQs
What is the average ring size?
The average ring size for women in the US is around 6 to 6.5, and around 8 to 9 for men. That said, ring size varies widely by individual, so it's best to measure rather than assume.
How can I find my ring size without a ring sizer?
Measure a ring you already own, or wrap a piece of string or paper around your finger and measure the length against a ruler. Both methods work well without any special tools.
Are ring sizes the same in every country?
No. The US, UK, and EU all use different ring size scales. A US size 6, for example, is roughly a UK size L and an EU size 51-52. Always check a conversion chart before ordering internationally.
Does ring size change over time?
Yes. Weight fluctuations, age, temperature, and even time of day can all affect finger size. It's normal for your ring size to shift slightly over the years.
What time of day is best for measuring ring size?
Evening. Fingers are smallest in the morning and swell throughout the day, so measuring in the evening gives the most accurate, consistent read.
Should I size up or down if I'm between two sizes?
Size up. A slightly loose ring can be professionally resized down more easily than a tight one can be sized up.
Why trust this guide
This guide was reviewed by Baby Gold's jewelry team. Baby Gold is owned by third-generation jewelers with hands-on experience in jewelry production, manufacturing, product sizing, and customer fit questions. Our recommendations are informed by how solid gold rings, bands, and stacking pieces are made, measured, and worn.