See how it works
Real example: same person, before and after.



Your estimated ring size:
US 6.5 · EU 53 · UK M · JP 13 · 16.5 mm
Your estimated ring size:
US 6.5 · EU 53 · UK M · JP 13 · 16.5 mm
See any ring on YOUR hand
and get your ring size — before you buy.
AI ring-size-on-hand simulator — upload a photo of YOUR hand, drop in any ring, and see it on your real finger in 30 seconds. Then get an AI ring-size estimate (US / EU / mm) read straight from your hand, so you order the right size the first time. Stop guessing from a model’s hand or a paper chart — see exactly how the band, the stone and the proportion sit on your own finger before you spend.
What this ring-size simulator does
An AI render that places any ring on your real hand — keeping your finger length, knuckle width, skin tone, lighting and angle — and then estimates your ring size from the proportions in your photo. Unlike static "ring size charts" that show a stranger’s hand, this tool uses YOUR hand, so both the look and the size reflect your actual anatomy. A band that looks dainty on a long slim finger can look very different on a shorter, fuller one — this is the tool that shows you the difference, and the size, before you commit. Works with any style — solitaire, pavé, eternity, signet, stacking bands — and any metal.
How to use the ring-size simulator step by step
- Take a flat photo of your hand on a neutral background, fingers slightly apart
- Upload a reference image of the ring you want to try on
- The AI places the ring on your finger in 30 sec — same skin tone, same light
- Unlock to reveal your AI ring-size estimate (US / EU / mm) read from your hand
- Screenshot the size + render and order with confidence — or take it to a jeweler
When the ring-size simulator saves you the most
Surprise proposals
You can’t ask for her size without spoiling it. Snap a photo of her hand (or a clear photo you already have) and get an estimate — no awkward questions.
Buying online, no returns
Most online rings ship without easy resizing. A size estimate from your real hand is the difference between a perfect fit and an expensive remake.
Between two sizes
Knuckle wider than the base of your finger? The simulator shows how the band sits so you pick the size that goes on AND stays on.
Gifting a ring
Sizing a gift for a partner, parent or friend without measuring their finger — estimate from a photo instead of guessing.
Stacking & eternity bands
Full-circle bands can’t be resized later. Get the size right the first time before you commit to an eternity or stacking set.
What a ring-size simulator does NOT replace
A jeweler’s final sizing
The estimate is accurate to about ±half a size for most hands. For a high-value or non-resizable ring, confirm with a jeweler’s sizing tool before ordering.
Temperature & time of day
Fingers swell in heat and shrink in cold. The estimate reflects your hand as photographed — measure at a normal temperature for the truest result.
Wide-band differences
Wide bands fit tighter than thin ones at the same size. For bands over ~6mm, size up a quarter to half size from the estimate.
Stop guessing your ring size from a chart
Every ring-size chart uses a stranger’s hand and a ruler. This simulator uses YOUR hand and gives you a size. 30 seconds to avoid a wrong-size ring you can’t return.
Try a ring on my handFREEOne pack unlocks every Agalaz feature
Buying the Starter pack or higher doesn't just unlock this one page. You get unlimited access to every category at agalaz.com/try-on: clothes, dresses, swimwear, glasses, jewelry, engagement rings, tattoos, costumes, hairstyles, makeup, nails, pet outfits — even cosplay. Same photoreal render quality, same speed.
See everything at /try-onThe free demo proved it works.
Now keep your renders.
Free renders ship with a watermark and a single attempt per day — useful for "does this even work" but not for the screenshot you actually want to share. Only Visionary includes a 7-day free trial. Cancel anytime.
Free demo
- ✕Watermarked image (unusable to share)
- ✕1 render per day per browser
- ✕No retries on the same prompt
- ✕Lower-quality model (faster but less accurate)
Paid plan
- Clean HD render, no watermark
- 10–200 HD renders per period
- Retry with different photos as needed
- Premium AI model for jewelry, fit, faces
No card charged during the trial · receipt arrives here
Explorer
5 HD renders
Pay once · credits never expire
Momentum
50 HD renders / month
$0.40 per render
Visionary
200 HD renders / year
$0.25 per render
Explorer is a one-time $2.99 pack (5 credits, never expire — no subscription). Visionary starts with a 7-day free trial; Momentum bills from day one.
1,247 people started a plan this month
Ring size on hand simulator — FAQ
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