Find your size,
with certainty.
Asl rings are wide, substantial bands, cast with intentional weight. This guide takes you from a finger you have never measured to the exact size to order. No prior knowledge needed. No guesswork left behind.
Three steps to the right fit.
Every ring is made to order over ten to twelve weeks, and sizes cannot change once production begins. A few careful minutes now is the whole difference.
Measure
Use any method below. The paper strip takes two minutes and needs nothing but paper and a ruler. Prefer certainty? A jeweller is the gold standard.
Apply the rule
Asl bands are wide, so they sit closer to the finger. Our sizing rule turns your raw measurement into the correct whole size to order. The size finder does this for you.
Order with confidence
Once you have your size, you are ready. If anything feels uncertain, we would always rather you ask first. We answer every sizing message personally.
Tell us what you know. We do the rest.
Enter a measurement or your usual size. We apply the Asl sizing rule and return the exact size to order, with the reasoning shown clearly. This is the fastest way to confirm a fit.
What would you like to enter?
Pick whichever you have. Circumference from the paper strip is the most reliable at home.
Every size, side by side.
We list US size as the primary reference, paired with the UK letter and millimetre measurements. Diameter is the inner width. Circumference is the inside loop.
| US Size | UK Size | Diameter | Circumference | EU / mm |
|---|---|---|---|---|
| 6 | L ½ | 16.5 mm0.65 in | 51.9 mm2.04 in | 52 |
| 7 | N ½ | 17.3 mm0.68 in | 54.4 mm2.14 in | 54 |
| 8 | P ½ | 18.2 mm0.72 in | 57.0 mm2.24 in | 57 |
| 9 | R ½ | 19.0 mm0.75 in | 59.5 mm2.34 in | 59 |
| 10 | T ½ | 19.8 mm0.78 in | 62.1 mm2.44 in | 62 |
Choose the method that suits you.
Any of these will give you a measurement to enter into the size finder above. They are ordered from most to least accurate.
The Jeweller
Visit a local jeweller and ask for a wide-band fitting. A calibrated mandrel accounts for width, temperature, and knuckle shape in one sitting.
A Ring You Own
Measure the inner diameter of a band that already fits, straight across the widest point. Enter it under Inner diameter, or use our on-screen tool.
Paper Strip
Cut a strip of paper 10mm wide. Wrap snugly around the base of the finger, mark the overlap, then measure in mm. That is your circumference.
String or Floss
The least accurate method. If nothing else is available, wrap non-stretchy string around the finger, mark, and measure. Always lean larger.
No ruler, no jeweller, no problem.
Both tools below give you a measurement you can drop straight into the size finder. Each begins with a quick calibration so the result is true to life.
Print your own ring sizer
A paper strip that prints true to size, with a built-in calibration bar so you can confirm your printer scaled it correctly before you measure.
Set your printer to 100% scale (not Fit to page). After printing, check the calibration bar against a bank card, which is 85.6mm wide. If it matches, your measurements will be accurate.
Measure a ring you own, on screen
Calibrate the screen with a bank card, then size the circle to match the inside of a ring you already wear. We read the diameter and find your size.
Hold a bank card against the box below and drag until they match exactly in width.
Small habits, accurate results.
Measure in the evening
Fingers swell gradually through the day. An early-morning reading is the smallest you will ever be. By evening, you are closer to your true size.
At body temperature
Cold fingers shrink and warm hands expand. Measure after a few minutes indoors at normal temperature, never straight out of cold air or after exercise.
The correct hand
Your dominant hand is usually a quarter size larger. Measure the exact finger on the exact hand where your Asl ring will be worn, every time.
Mind the knuckle
The ring must pass over the knuckle without force. If your knuckle is noticeably larger than the base, choose a size between the two, leaning larger.
Measure three times
On three occasions: morning, afternoon, evening. Take the average. This is the method professional jewellers use to remove daily variation.
Between two sizes, go up
Always. A slightly loose ring is livable. A ring that cannot pass the knuckle is not. This applies especially to wide bands like Asl pieces.
We would rather you ask first.
Because every ring is made to order, a confirmed size matters. Send us your measurement and the finger you intend to wear it on. A member of our team will confirm your size personally before you order.