Ring size guide
Ring Size on Phone
A phone can work well for screen measurement because it is easy to place a ring directly on the display after calibration.
Start with screen calibration
Use the online ring sizer after calibrating your phone screen with a credit card or ruler.
Open ring sizerCalibrate after rotating
If the phone changes orientation or browser zoom changes, recalibrate before measuring.
Keep the ring flat
Place the ring flat on the glass and look straight down while matching the inner edge.
This tool provides an estimated ring size only. Double-check before buying, especially for expensive, custom, or engagement rings.
FAQ
Common questions
How accurate is this ring size tool?
It provides an estimated ring size. Screen calibration, browser zoom, ring alignment, and measuring method can all affect the result.
Can I measure ring size on my phone?
Yes. A phone is often easier because you can place a ring directly on the screen after calibration.
What if I am between two sizes?
Check the fit with another method. Wider bands can feel tighter, so many buyers choose the larger nearby size for wide rings.
Should I use this for an engagement ring?
Use it as a starting point only. For expensive, custom, or engagement rings, confirm with a professional jeweler.