TV sizes in cm: width and height chart
A TV’s size in inches is the diagonal of its screen. Multiply by 2.54 to get centimeters, and use the 16:9 shape to work out the width and height. Every common size from 24 to 100 inches is worked out below.
TV size chart in cm (16:9)
These are the dimensions of the visible screen. The TV itself is slightly larger because of the frame (usually 0.5–2 cm on each side on current models) and the stand.
| Inches | Diagonal (cm) | Width (cm) | Height (cm) | Viewing distance | Stand from (cm) |
|---|---|---|---|---|---|
| 24″ | 61 | 53.1 | 29.9 | 0.7–1 m | 65 |
| 32″ | 81.3 | 70.8 | 39.8 | 1–1.3 m | 85 |
| 40″ | 101.6 | 88.6 | 49.8 | 1.2–1.6 m | 100 |
| 43″ | 109.2 | 95.2 | 53.5 | 1.3–1.7 m | 110 |
| 50″ | 127 | 110.7 | 62.3 | 1.5–2 m | 125 |
| 55″ | 139.7 | 121.8 | 68.5 | 1.7–2.2 m | 135 |
| 58″ | 147.3 | 128.4 | 72.2 | 1.8–2.4 m | 140 |
| 60″ | 152.4 | 132.8 | 74.7 | 1.8–2.4 m | 145 |
| 65″ | 165.1 | 143.9 | 80.9 | 2–2.6 m | 155 |
| 70″ | 177.8 | 155 | 87.2 | 2.1–2.8 m | 165 |
| 75″ | 190.5 | 166 | 93.4 | 2.3–3 m | 180 |
| 77″ | 195.6 | 170.5 | 95.9 | 2.3–3.1 m | 185 |
| 85″ | 215.9 | 188.2 | 105.8 | 2.6–3.5 m | 200 |
| 98″ | 248.9 | 217 | 122 | 3–4 m | 230 |
| 100″ | 254 | 221.4 | 124.5 | 3–4.1 m | 235 |
How width and height are calculated
Modern TVs have a 16:9 aspect ratio. By Pythagoras, the diagonal is √(16² + 9²) ≈ 18.36 of those units, so the width is 0.8716 of the diagonal and the height 0.4903.
Example for 55 inches: 55 × 2.54 = 139.7 cm diagonal; 139.7 × 0.8716 = 121.8 cm wide and 139.7 × 0.4903 = 68.5 cm tall. Old 4:3 TVs are 0.8 of the diagonal wide and 0.6 tall.
How to measure your TV in inches
- Measure the picture diagonally, from one corner to the opposite corner, without the frame.
- Divide the centimeters by 2.54: a 108 cm diagonal is 42.5 inches.
- To check whether a TV fits a cabinet or a niche, use the full width including the frame from the spec sheet, not the diagonal.
Which size for your viewing distance
A practical rule for Full HD and 4K is to sit 1.2 to 1.6 times the diagonal away. Turned around, these are the sizes that suit each sofa-to-screen distance:
| Distance to the screen | Recommended size |
|---|---|
| 1.5 m (4.9 ft) | 37″ – 49″ |
| 2 m (6.6 ft) | 49″ – 66″ |
| 2.5 m (8.2 ft) | 62″ – 82″ |
| 3 m (9.8 ft) | 74″ – 98″ |
| 3.5 m (11.5 ft) | 86″ – 115″ |
| 4 m (13.1 ft) | 98″ – 131″ |
Before you buy: stand, wall and delivery
Leave at least 5 cm (2 in) on each side of the stand: on many models the feet sit at the very edges. For wall mounting, check that the bracket matches the VESA pattern in the spec sheet and that the wall can carry the weight.
The box of a 65-inch or larger TV is easily more than 1.6 m (5 ft 3 in) long, so check doors, stairs and the elevator in advance.
Frequently asked questions
How many cm is a 55-inch TV?
139.7 cm diagonally; the screen is about 121.8 cm wide and 68.5 cm tall (16:9).
How wide is a 65-inch TV?
About 143.9 cm (56.7 in) of visible screen; around 145 cm with the frame.
Is the frame included in the TV size?
No. Only the visible screen is measured.
More size guides
Screen sizes in cm: phones, tablets, laptops and monitors · Jeans sizes in cm: waist (W) and length (L) · Fractions of an inch to millimeters
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