# Ring Sizer: Size & Convert

> Measure on Screen, US UK EU

Canonical page: [https://chrome-stats.com/d/id6790018770](https://chrome-stats.com/d/id6790018770)

## Overview

- **ID:** `id6790018770`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Removed
- **Publisher:** heekyung moon
- **Category:** Utilities
- **Version:** 1.2.1
- **Last updated:** 2026-08-03
- **First published:** 2026-07-20
- **Size:** 52 MB
- **Data as of:** 2026-08-28
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/ring-sizer-size-convert/id6790018770)
- **Website:** [https://janey-moon.blogspot.com/](https://janey-moon.blogspot.com/)
- **Privacy policy:** [https://sites.google.com/view/ringsizersss](https://sites.google.com/view/ringsizersss)

## Description

Find a ring size without a physical gauge. Ring Sizer lets you place a ring you already own on the screen, match it to an on-screen circle, and read the size — then convert it to every standard used around the world.

Accuracy comes from calibration: the app uses your device's screen size, and you can fine-tune it once by matching a standard bank card, so the circle on screen is true to life.

▶ Measure a ring
Place a ring on the screen, pinch or slide the circle to match its inside edge, and see the inner diameter in mm with US, UK, EU and JP sizes at once.

▶ Finger guide
Use the on-screen band as a width guide, or enter a circumference you measured with string or paper for a more reliable result.

▶ Convert any standard
Enter US, UK, EU, JP, inner diameter or circumference and get the full conversion, plus a complete size chart.

▶ Card calibration
Auto-calibrate from your device, then confirm with a bank card outline for a true-to-size circle, shown by an accuracy badge.

▶ Save sizes
Keep sizes for family and partners with name labels — perfect for gifts and surprise proposals.

On-screen results are estimates within about half a size and depend on calibration, so confirm at a jeweler before ordering. Finger width is not the same as circumference; the string method is more accurate. Works offline, no account needed.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6790018770)