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
Ring size measurement
from a photo — get your US / EU / UK / mm size.
Find your ring size from a photo with AI — no ring sizer, no string, no trip to a jeweler. Upload a photo of your hand and our AI estimates your ring size (US, EU, UK and inner diameter in mm) from your finger proportions. Perfect for surprise proposals, online ring shopping, and resizing checks before you buy. See exactly what size to order in 30 seconds.
How ring size measurement from a photo works
Our AI analyzes your hand photo — finger width at the base of the ring finger, knuckle width and overall hand proportions — and converts it into a standard ring size (US 5–10, EU 49–63, UK J–T) plus the inner diameter in millimetres. It uses your actual finger, not a stock model, so the estimate reflects YOUR anatomy. Ideal when you want to buy a ring online without asking the wearer, plan a surprise proposal, or double-check a size before resizing. The estimated size is shown after unlocking, so the surprise stays intact until you decide.
How to measure your ring size from a photo, step by step
- Lay your hand flat, fingers slightly spread, on a neutral surface in good light
- Take a straight-on photo of the hand (palm down) so the ring finger is clearly visible
- Pick a reference ring style so the AI knows where to place it on the finger
- The AI estimates your size — US, EU, UK and inner diameter in mm
- Order with confidence, or bring the estimate to your jeweler for a final check
When ring sizing from a photo helps most
Surprise proposals
Find the wearer's ring size from an existing photo of their hand — no awkward questions, no borrowing the ring while they sleep.
Buying rings online
Most online ring sales fail on sizing. Estimate the size before ordering so you avoid the return-and-resize cycle.
No ring sizer at home
No printable strip, no string-and-ruler trick. A photo is enough to get a usable US/EU/UK estimate.
Gifting a ring
Birthday, anniversary or push-present — check the size discreetly from a photo before you buy.
Resizing decisions
Not sure if a ring runs big or small on the finger? Estimate the target size before paying for a resize.
What a photo estimate can NOT replace
A jeweler's final measurement
A photo estimate gets you within ~1 size. For an exact fit (especially for a permanent wedding band) confirm with a jeweler's mandrel before ordering.
Knuckle vs base differences
If the knuckle is much wider than the base of the finger, the comfortable size can differ. A photo can't feel that — size up slightly if in doubt.
Temperature / time of day
Fingers swell in heat and shrink in cold. Measure when the hand is at a normal, neutral temperature for the most reliable estimate.
Stop guessing the ring size
A string, a ruler and a guess cause most online-ring sizing mistakes. Measure from a photo in 30 seconds and order the right size the first time.
Measure my ring size from a photoFREEOne 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 send your friends, your stylist or post on Instagram. One-time payment, no subscription, credits never expire.
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 pack
- Clean HD render, no watermark
- Up to 20 renders per pack
- Retry with different photos as needed
- Premium AI model for jewelry, fit, faces
No account needed · receipt arrives here
Trial
2 HD renders
Just unlock the one you saw
VTO Starter
8 HD renders
$0.62 per render
VTO Pro
15 + 5 free = 20 HD
$0.50 per render · 15% off with AGALAZ15
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Ring size measurement from photo — FAQ
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