iPhone Screenshots


Handy utility from Jason Withers created to easily find the ring size in the different countries. There are some unique features supported by the app:

- choose metric or imperial units
- choose diameter or circumference
- use visual guides for more precise measuring
- supports sizes of the USA, Australia, United Kingdom, Europe, Japan and China
- easily share your ring size on social networks

Also we have integrated our "Engagement & Wedding Rings" catalogue and Instagram feed from Jason Withers into this app. You can request quotes through the "Enquire by email" function of the app. One of our expert jewellery consultants will then respond to the enquiry and assist you with your query.

What’s New

Version 3.18.0

- ring catalog updated

Ratings and Reviews

4.5 out of 5
128 Ratings

128 Ratings

iSnuffleupagus ,

Amazing app & amazing accuracy

I was looking to convert my US size to a EU. This app is so simple and intuitive. You can even measure the size of a ring you own on the screen. It also has a chart to that shows the different cuts of stones and setting names. So much more than what I needed! Thank you!

thamysorel ,

Easy and simple

Very useful app. I was unsure of the size of the ring and needed to order it right away, it really helped me to make sure I was ordering the correct size.
It also has a convertion to europan and japanese sizes. I did not need but I believe it help other people that need this info.

TheZombieAwakens ,

Worked like a charm!!!

I bought a ring to give as a gift, and I wasn’t sure if it was the right size. (I bought it from a third seller) This app was just what I needed!

App Privacy

The developer, Cherry-Design, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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