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Screens
The difference
75″ is 36% bigger diagonally — but 86% more screen area.
Screen A
55″ 16:9
About 122 cm wide × 68 cm tall — 9 sq ft of screen
Screen B
75″ 16:9
About 166 cm wide × 93 cm tall — 16.7 sq ft of screen
Bigger than it looks
A 75-inch TV doesn't sound much bigger than a 55-inch one — until you see that it's about 86% more screen. Compare two screens by real area, or settle the classic pizza question: is one 18-inch pizza more food than two 12-inch ones?
It answers questions like 'how much bigger is a 75-inch TV than a 55-inch' and 'is one 18-inch pizza more than two 12-inch pizzas' — comparing by actual area, not just the diagonal. The answer usually surprises: screen area grows with the square of the diagonal, and pizza works exactly the same way.
Good to know
- Area grows with the square of size: 36% more diagonal means about 86% more screen area.
- One 18-inch pizza actually beats two 12-inch pizzas — roughly 254 vs 226 square inches.
- Screens are rectangles: the aspect ratio (16:9, 21:9…) decides how much of the diagonal is width.
How it works
- 1Pick Screens mode for TVs, monitors and phones — or Pizza mode.
- 2Enter the two sizes (and quantities, for pizza).
- 3See the percentage difference in diagonal and in area.
- 4Add prices in pizza mode to see which option gives the most pizza per unit of money.
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