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Pixel 8 Pro Ruler
Actual size, on screen

A millimetre ruler drawn to true scale for the Pixel 8 Pro screen. Hold what you want to measure against the ticks on the right edge. On the Pixel 8 Pro you can measure up to about 15 cm (5.9 in). No app needed.

What fits on the Pixel 8 Pro screen – and what doesn't

The Pixel 8 Pro screen in numbers

Logical resolution (CSS px)439 × 977px
Device pixel ratio3.062×
Physical resolution1344 × 2992px
Pixel density490 ppi
Screen size (approx.)69.7 × 155.1 mm (2.74 × 6.11 in)
Diagonalabout 6.7 in
CSS px per mm6.30 px
Released2023

Compared with nearby models

Screen height compared with the Pixel 8 Pro (69.7 × 155.1 mm).

How this ruler stays true to size

The Pixel 8 Pro packs 490 pixels into every inch and draws 3.062 physical pixels per CSS pixel, so one millimetre is 6.30 CSS px. The ticks are rebuilt from that number and the live pixel ratio each time the page opens, which is why no calibration is needed on this model. The right side of the strip is metric (mm/cm) and the left side is inches in 1/16 steps; 1 inch = 25.4 mm.

If the ticks look off (display zoom or font-size settings change the ratio), hold a credit card against the screen – its long side is 85.6 mm – and use the card calibration. The calibration tool and the full device list are in Japanese, but the controls are simple: pick card or coin, drag to match. 日本語版はこちら.

Bookmark it, or add it to your home screen for next time.