Tablet Size Calculator

iPad & Galaxy Tab inches → cm

Size Calculator
Tablet Size Charts
4:3 (iPad-class)Width in (cm)Height in (cm)Diagonal
8.3"6.6 (16.9 cm)5.0 (12.6 cm)21.1 cm
10.2"8.2 (20.7 cm)6.1 (15.5 cm)25.9 cm
10.9"8.7 (22.1 cm)6.5 (16.6 cm)27.7 cm
11"8.8 (22.4 cm)6.6 (16.8 cm)27.9 cm
12.9"10.3 (26.2 cm)7.7 (19.7 cm)32.8 cm
13"10.4 (26.4 cm)7.8 (19.8 cm)33.0 cm
16:10 (Galaxy Tab-class)Width in (cm)Height in (cm)Diagonal
10.4"8.8 (22.4 cm)5.5 (14.0 cm)26.4 cm
11"9.3 (23.7 cm)5.8 (14.8 cm)27.9 cm
12.4"10.5 (26.7 cm)6.6 (16.7 cm)31.5 cm
14.6"12.4 (31.4 cm)7.7 (19.7 cm)37.1 cm

Tablet Size Calculator

iPads use a 4:3-class ratio while Galaxy Tabs use 16:10, so the same inch count gives different shapes: 4:3 offers more screen area for reading and notes, 16:10 suits video. Check case compatibility by exact model, not inches.

FAQ
How big is an 11 inch tablet?
An 11-inch 4:3-class iPad Pro is about 8.8 × 6.6 inches (22.4 × 16.8 cm); an 11-inch 16:10 Galaxy Tab is about 9.3 × 5.8 inches (23.7 × 14.8 cm).
Why do iPad and Galaxy Tab shapes differ?
iPads favor a 4:3-class ratio for documents and note-taking; Galaxy Tabs use 16:10 for video. At equal inches, 4:3 has more screen area.
Can I choose a case by inches?
No — chassis size and camera position vary by generation, so match cases to the exact model name.
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