iPad Pro 9.7インチ Ruler
Actual size, on screen

What fits on the iPad Pro 9.7インチ screen – and what doesn't

• a new pencil190 mm / 7.48 infits in one go (7.0 mm to spare)
• a US dollar bill (long side)155.96 mm / 6.14 infits in one go (41.1 mm to spare)
• a 4×6 photo (long side)152.4 mm / 6.00 infits in one go (44.6 mm to spare)
• A4 paper (short side)210 mm / 8.27 in13.0 mm too long – measure in 2 passes
• Letter paper (short side)215.9 mm / 8.50 in18.9 mm too long – measure in 2 passes
• Letter paper (long side)279.4 mm / 11.00 in82.4 mm too long – measure in 2 passes

The iPad Pro 9.7インチ screen in numbers

• The screen is 197.0 mm (7.76 in) tall – 8.1 quarters laid end to end
• 2.30 times the long side of a credit card (85.6 mm)
• There are 104 physical pixels in every centimetre, 264 in every inch
• The finest 1 mm tick is 10.4 pixels apart

Compared with nearby models

Screen height compared with the iPad Pro 9.7インチ (147.8 × 197.0 mm).

• iPad mini 32014 · 119.7 × 159.6 mm37.5 mm shorter
• iPad mini 42015 · 119.7 × 159.6 mm37.5 mm shorter
• iPad Pro 11インチ2018 · 160.5 × 229.8 mm32.7 mm taller
• iPad Pro 12.9インチ2018 · 197.0 × 262.9 mm65.8 mm taller

Models with the exact same scale

• iPad(第5世代)
• iPad(第6世代)
• iPad Air(第2世代)

How this ruler stays true to size

The iPad Pro 9.7インチ packs 264 pixels into every inch and draws 2 physical pixels per CSS pixel, so one millimetre is 5.20 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.