Skip to content
ScreenMetricLab Check screen

Device screen reference

MacBook Air 15-inch screen size

Use this reference for MacBook Air 15-inch CSS viewport width, physical resolution, DPR, diagonal size, PPI, and responsive testing notes.

MacBook Air 15-inch viewport details

BrandApple
FamilyMacBook
TypeLaptop
CSS viewport1440 × 932
Physical resolution2880 × 1864
Device pixel ratio2
Diagonal15.3 inches
Pixel density224 PPI
Aspect ratio16:10
Source labelManufacturer specs + viewport reference
ConfidenceReview
Testing note: Large laptop baseline for desktop responsive layouts. Browser zoom, OS display scaling, address bars, toolbars, and orientation can change what JavaScript reports on a live webpage.

Visual comparison

Compare viewport shapes

Pick two records and compare CSS viewport or physical resolution shapes. The drawing is scaled for relative size, so it is useful for layout intuition before opening the detailed records.

Left device
Right device

CSS viewport comparison

Compare two devices to see the relative area.

—

Device

Family · DPR · PPI

—

Device

Family · DPR · PPI

Responsive testing notes

How to use this viewport reference

Use 1440 × 932 as a practical starting point for testing MacBook Air 15-inch layouts, then confirm the live viewport in the browser you are targeting.

Test CSS width

Start breakpoint checks around 1440px, then resize slightly above and below that value.

Record DPR

A DPR of 2 affects image sharpness, canvas rendering, and screenshot interpretation.

Verify live values

Use the live checker because browser chrome, orientation, zoom, and OS scaling can change the usable area.

Source and update note

Reference values, not guarantees

This page is built from the ScreenMetricLab device viewport dataset. Values are normalized for practical QA and design use, but they should be verified on real devices or browser emulators before publishing critical layouts.

Record source: Physical specs come from manufacturer-style display references; CSS viewport is a practical browser reference that should be verified on the target device/browser.

Updated 2026-06-26

Device references should be reviewed regularly as browsers, OS scaling, and hardware options change.

Use with live tools

Pair this page with the viewport checker, DPR checker, and screen resolution checker for better QA notes.

Frequently asked questions

What is the CSS viewport size for MacBook Air 15-inch?

The reference CSS viewport for MacBook Air 15-inch is 1440 × 932. Live browser values can still change because of zoom, browser UI, OS display scaling, orientation, and responsive mode.

Is viewport size the same as screen resolution?

No. The physical resolution for this device is 2880 × 1864, while the CSS viewport is the layout area that websites normally use for responsive breakpoints.

Which value should I use for responsive testing?

Use the CSS viewport width first when checking breakpoints and layout bugs. Include DPR and physical resolution as extra context in QA reports.

Why can my live result be different from this reference?

Browser chrome, zoom, operating-system scaling, accessibility settings, split view, and orientation can all change the viewport reported by JavaScript.

Related tools

Use these tools to validate this device reference in a live browser.

What Is My Screen Size?

Active

Check your live screen resolution, viewport size, DPR, browser, OS, orientation, color depth, and refresh rate.

Open screen checker →

Viewport Size Checker

Active

Measure the browser viewport and visual viewport that your website can use right now.

Check viewport →

Screen Resolution Checker

Active

Find the physical pixel grid reported by your current display and copy it for QA notes.

Check resolution →

DPR Checker

Active

See your device pixel ratio for responsive images, retina assets, and layout debugging.

Check DPR →

PPI Calculator

Active

Calculate pixel density from resolution and diagonal display size for phones, laptops, monitors, and TVs.

Calculate PPI →
View all related tools →

Related devices

More MacBook references

View family page →

MacBook Air 13-inch

1280 × 832 CSS viewport · DPR 2

MacBook Air M1 13-inch

1280 × 800 CSS viewport · DPR 2

MacBook Pro 13-inch

1280 × 800 CSS viewport · DPR 2