RingFit: Ring Sizer & Measure

2.29K reviews
Content rating
Everyone
500K+
Downloads
Content rating
Everyone
Learn more
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Find your ring size in seconds—without visiting a jeweller, using paper strips, or guessing. RingFit turns your phone into an accurate ring sizer and ring-size measurement tool. Measure a ring you already own or measure your finger directly on screen, then convert the result to US/Canada, UK, EU, Japan, India, and other international standards.

Used by 500,000+ people for engagement rings, wedding bands, gifts, and online jewellery shopping.

RING SIZER—MEASURE A RING
• Place a ring on the screen and match the circle to its inner edge
• View the inner diameter and circumference in millimetres
• See the matching size across international ring-size systems
• Useful for surprise gifts when you can borrow a ring they already wear

FINGER SIZER—NO RING NEEDED
• Measure your finger directly on your phone screen
• Follow a simple on-screen guide for a comfortable fit
• Ideal for first-time buyers and online ring shopping

RING SIZE CHART & CONVERTER
• Compare diameter, circumference, and sizes in one chart
• Convert between US/Canada, UK, EU, Japanese, Indian, and other standards
• Keep an international ring-size finder in your pocket

SAVED SIZES & GIFT PROFILES
Save measurements and create profiles for your partner, family, and friends.

GOLD & SILVER RATES + JEWELLERY CALCULATOR
Check current gold and silver rates worldwide and estimate jewellery value using weight and purity.

JEWELLERY CARE GUIDE
Learn how to clean and store gold and silver jewellery and keep rings looking their best.

HOW TO MEASURE RING SIZE AT HOME
Choose Ring Sizer if you have a ring or Finger Sizer if you do not, follow the guide, and read your size in seconds. No printable chart, string, or measuring tape is required.

Download RingFit and get the right fit the first time.

Questions or feedback? Email avinyasys@gmail.com.
Measure ring and finger size fast. US, Canada, UK and EU size converter
Updated on
Dec 10, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    App info and performance and Device or other IDs
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

2.28K reviews
Vaibhav Patel
April 3, 2023
This app is amazing and really helpful. It makes working out your ring size super easy and quick, all from your smartphone. It's been a lifesaver for me, especially when I can't find my metal measurement tool. I was surprised to see some negative reviews because it's a free app that gives accurate measurements and doesn't take up much storage space. It's definitely worthy of a five-star rating!
35 people found this review helpful
Did you find this helpful?
AVINYA
April 12, 2023
Thank you for downloading our app! We will keep working on it!
Tammy Gerdes
November 27, 2023
HORRIBLE! You cannot even make it through the video tutorial of how to use the app because an add pops up then you have to start the tutorial over but another add pops up again. Unusable if you can't even watch the tutorial video. Have you all even tried to use your own app?
28 people found this review helpful
Did you find this helpful?
AVINYA
November 27, 2023
We have not had this issue reported to us before, and we'd certainly like to work this through for you. Could you share the details at avinyasys@gmail.com? And any relevant screenshots would be immensely valuable. Thank you.
Phil Webb
December 2, 2023
I laid the ring on the grid and started tapping room sizes to increase the circle size to match the inside of the ring I was sizing. After increasing the size 4 or 5 times an ad popped up, which I couldn't figure out how to close. So, I closed the app, reopened it, tapped a ring size, got an ad. After close, open, tap, ad a few times, I reinstalled the app and again, after 4 or 5 taps, an ad popped up. Then, close, open, tap, ad, close, open, tap, ad, close, open, tap, ad. You get the point.
19 people found this review helpful
Did you find this helpful?
AVINYA
December 7, 2023
Dear user, Thanks for supporting us and we are sorry for Ads. Alternatively you can try the measurement ruler slider in the screen, that should not cause you this problem. We will improve in the future and we will try to keep the Ads from interfering. Please let us know if you have any questions. Thank you.

What’s new

Improve app startup time.
Minor bug fixes.