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Rings

Ring Size Guide

Measure a ring you already wear or compare your finger circumference with the chart. If the ring is adjustable, always check the product page for its listed range.

Before You Choose

Ring fit changes with temperature, time of day, band width, and whether the ring is adjustable. Use this page as a guide, then confirm the exact size or adjustable range on the product page.

Step 1

Check the product type

If the ring is adjustable, use the product page's adjustable range as the final reference.

Step 2

Measure your size

Measure a ring that fits the same finger, or wrap paper around your finger to measure circumference.

Step 3

Size up when unsure

If you are between sizes or the band is wide, choose the larger size for easier daily wear.

Ring Size Chart

US Size
Inside Diameter
Finger Circumference
Fit Note
US Size5
Inside Diameter15.7 mm
Circumference49.3 mm
Fit NoteVery slim fit
US Size6
Inside Diameter16.5 mm
Circumference51.9 mm
Fit NoteSlim fit
US Size7
Inside Diameter17.3 mm
Circumference54.4 mm
Fit NoteRegular fit
US Size8
Inside Diameter18.1 mm
Circumference57.0 mm
Fit NoteRegular to fuller fit
US Size9
Inside Diameter18.9 mm
Circumference59.5 mm
Fit NoteFuller fit
US Size10
Inside Diameter19.8 mm
Circumference62.1 mm
Fit NoteLarge regular fit
US Size11
Inside Diameter20.6 mm
Circumference64.6 mm
Fit NoteLarger fit
US Size12
Inside Diameter21.4 mm
Circumference67.2 mm
Fit NoteExtra large fit
Adjustable Rings

Check the listed range

Adjustable rings offer flexibility, but they still have a natural comfort range. Do not treat them as one-size-fits-all.

Daily Wear

Choose comfort first

A ring should pass the knuckle with light resistance and sit steady without pressing into the finger.

What if I am between two ring sizes?

Choose the larger size if your measurement falls between two sizes, especially for wider bands or rings you plan to wear all day.

Are adjustable rings one-size-fits-all?

No. Adjustable rings offer more flexibility, but each product still has a comfortable range. Check the product page before ordering.

When is the best time to measure my finger?

Measure when your hands feel normal, not cold or swollen. Finger size can change with temperature and time of day.

Can I use a ring I already own?

Yes. Measure the inside diameter of a ring that fits the same finger, then compare it with the chart.

Should a ring feel tight at the knuckle?

No. It should pass the knuckle with light resistance, then sit steady without pressing into the finger.

Need Help?

If you are unsure about ring size, contact us at service@thefumaster.com and include the product name or link. We will help you choose the most comfortable fit.