AppsOverflow
Ring Sizer – Size Measure app icon

Measure and compare ring sizes on iPhone and Android

Ring Sizer is a ring size finder, ring size chart, and ring size converter that makes ring measurement simple. Use it for engagement rings, wedding bands, gifts, and resizing.

FreeiPhone & AndroidOfficial App Store listing
Download on the App Store Get it on Google Play

Available on the App Store and Google Play. The feature descriptions and screenshots below refer to the iPhone app; check Google Play for Android-specific details. Features and compatibility can vary by platform.

Ring Sizer – Size Measure app — App Store screenshot 1 Ring Sizer – Size Measure app — App Store screenshot 2 Ring Sizer – Size Measure app — App Store screenshot 3 Ring Sizer – Size Measure app — App Store screenshot 4 Ring Sizer – Size Measure app — App Store screenshot 5

Why people use Ring Sizer

Highlights taken from the app's current App Store listing.

On screen ring sizer with fine size steps.

Finger sizer with a simple slider and visual guide.

Ring size converter and ring size

Ring size converter and ring size chart in one place.

International sizes for US and Canada

International sizes for US and Canada, UK and Australia, EU and ISO, Japan and China.

Diameter and circumference in millimeters

Diameter and circumference in millimeters for each size.

Save and organize sizes with hand and finger labels.

How it works

How to measure and compare ring sizes in three steps.

  1. Enter the values

    Add a ring or finger measurement.

  2. Compare the result

    Adjust the inputs to understand how different assumptions change the answer.

  3. Use the estimate

    Save or share the result, and verify important decisions with an appropriate expert or source.

Frequently asked questions

Quick answers about features, pricing, compatibility, and privacy.

What does Ring Sizer do?
Ring Sizer is a ring size finder, ring size chart, and ring size converter that makes ring measurement simple. Use it for engagement rings, wedding bands, gifts, and resizing.
Is Ring Sizer free?
The current App Store listing shows Free. Check the listing before downloading for current in-app purchases, subscriptions, or premium options.
Which iPhone version does Ring Sizer support?
The app is available through Apple's App Store. The current listing requires iOS 15.1 or later. Compatibility can change with later releases, so confirm it on the current listing.
How does Ring Sizer handle privacy?
Review the App Privacy section on the official App Store listing for the developer's current data-handling disclosures before installing.
When was Ring Sizer last updated?
The catalog snapshot shows version 1.0.1, updated September 17, 2026. Open the App Store listing for the newest release notes.
Is Ring Sizer available for both iPhone and Android?
Yes. Find Ring Sizer – Size Measure app on the App Store and Ring Sizer: Size Finder on Google Play. Features, minimum OS requirements, pricing, and subscriptions can differ between platforms; check your device's store listing before downloading.

Try Ring Sizer on iPhone or Android

Choose your platform for current features, compatibility, pricing, and privacy disclosures on the official store listing.

Download on the App Store Get it on Google Play