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MacBook Air 15″ (M3) Screen Size

CSS viewport, native resolution, pixel ratio and pixel density for the MacBook Air 15″ (M3) — the numbers you need to design and build for it.

CSS viewport · portrait
1710 × 1112 px

Native resolution 2880 × 1864 px at 2× · 224 PPI · 15.3″ · 1.55:1. Design at 1710 × 1112 and export assets at 2×.

MacBook Air 15″ (M3) display specifications
PropertyValue
CSS viewport (portrait)1710 × 1112 px
CSS viewport (landscape)1112 × 1710 px
Native resolution2880 × 1864 px
Device pixel ratio2×
Pixel density224 PPI
Screen diagonal15.3 in
Panel size12.86 × 8.32 in
Aspect ratio1.55:1 (exact 360:233)
Total pixels5.37 MP
Released2024
Operating systemmacOS

Among the 37 desktop and laptop displays on this site, the MacBook Air 15″ (M3) has the 12th largest CSS viewport area. Its 1710 px width is 39 px above the 1671 px average for this category.

Targeting the MacBook Air 15″ (M3) in CSS

Device-specific media queries are brittle — a new model with the same width will not match. Use them for genuine per-device fixes only, and prefer width buckets for layout.

CSS media query
/* Target MacBook Air 15″ (M3) specifically */
@media only screen
  and (device-width: 1710px)
  and (device-height: 1112px)
  and (-webkit-device-pixel-ratio: 2) {
  /* … */
}

/* More useful in practice — the width bucket it falls into */
@media (min-width: 1710px) { /* … */ }

Compare with other Mac & Displays models

MacBook Air 15″ (M3) compared with nearby Mac & Displays models
DeviceCSS viewportNativeDPRPPIDiagonal
MacBook Air 15″ (M3)1710 × 11122880 × 18642×22415.3″
MacBook Pro 16″ (M4)1728 × 11173456 × 22342×25416.2″
MacBook Pro 14″ (M4)1512 × 9823024 × 19642×25414.2″
MacBook Air 13″ (M3)1470 × 9562560 × 16642×22413.6″
iMac 24″ (M4)2240 × 12604480 × 25202×21823.5″
MacBook Air 15″ (M4)1710 × 11122880 × 18642×22415.3″
MacBook Air 15″ (M2)1710 × 11122880 × 18642×22415.3″
MacBook Pro 16″ (M3)1728 × 11173456 × 22342×25416.2″
MacBook Pro 14″ (M3)1512 × 9823024 × 19642×25414.2″

Questions about the MacBook Air 15″ (M3) screen

What is the screen size of the MacBook Air 15″ (M3)?

The MacBook Air 15″ (M3) has a 15.3-inch display. In CSS the viewport measures 1710 × 1112 px in portrait, and the panel itself has 2880 × 1864 physical pixels at 224 PPI.

What resolution should I design for on the MacBook Air 15″ (M3)?

Design at 1710 × 1112 and export assets at 2×. That gives you 2880 × 1864 px images, which is exactly what the panel renders. Designing directly at 2880 × 1864 means every measurement is 2 times larger than the CSS values you will write.

What is the device pixel ratio of the MacBook Air 15″ (M3)?

The MacBook Air 15″ (M3) reports a device pixel ratio of 2. One CSS pixel therefore covers 4 device pixels. You can read it in JavaScript with window.devicePixelRatio.

Why does 1710 × 2 not equal 2880?

Because MacBook Air 15″ (M3) ships in a scaled display mode. macOS composites the desktop at 3420 × 2224 — twice the 1710 × 1112 logical size — and resamples that frame down to the 2880 × 1864 panel. It is not the panel's native mode; it is the one Apple selects by default because 1710 px of workspace is the more useful number. Design against 1710 × 1112 and export at 2×.

Which other devices have the same viewport as the MacBook Air 15″ (M3)?

2 other devices share the 1710 × 1112 CSS viewport: MacBook Air 15″ (M4), MacBook Air 15″ (M2). A layout that works on one works on all of them.

Related

All Mac & Displays sizesAll device screen sizesCSS breakpointsPPI calculator
Specifications from the manufacturer's published device data. Last verified 7 August 2026. CSS viewport values are the portrait window.innerWidth/innerHeight reported by the stock browser with no browser chrome. See methodology and sources.