App Icon Size Calculator
Pick a platform below to see every icon slot Apple defines for it: the use/context, the point size, the scale factor (@1x / @2x / @3x), and the exact pixel dimensions. Click Copy on any row to grab the pixel size, or Copy all for the full list. Runs entirely in your browser — nothing is uploaded.
| Use / Context | Size (pt) | Scale | Pixels |
|---|
iOS AppIcon.appiconset — Contents.json
Drop this into Assets.xcassets/AppIcon.appiconset/Contents.json alongside a single 1024×1024 icon-1024.png — Xcode 14+'s "Single Size" mode generates every other slot from it.
pt →
Key Rules
- Format: PNG, square (1:1). iOS and watchOS icons must have no transparency/alpha; macOS icons should follow the rounded-rectangle shape with appropriate padding.
- No rounded corners on iOS: the system applies the mask automatically — deliver square art.
- Color space: sRGB or Display P3.
- Xcode 14+ shortcut: for iOS, iPadOS, and watchOS you can supply a single 1024×1024 image and let Xcode generate every other size. Provide individual sizes only when you want pixel-perfect control at small dimensions.
- watchOS icons are circular: the system applies a circular mask — keep critical content inside the circle.
Don't Resize By Hand
IconBundlr generates your icon with AI and exports a complete Xcode-ready .appiconset — every size on this page, plus Contents.json — in one tap.
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