Free tool · No sign-up · Works in your browser
Enter your wall dimensions and how far away people will stand: the screen size simulator shows, to scale, which digital signage displays fit, at what height to mount them, and how big your text must be to stay readable. Single screens and video walls, in centimeters or inches.
11 of 11 sizes fit
For viewers at 3.5 m, the 4-6-8 rule recommends:
Results are estimates based on standard panel geometry and common viewing guidelines. Always check the exact dimensions in your display's datasheet before drilling.

The biggest screen is not always the best one. A good size is the one that fits the space, is seen from where people actually stand and keeps your message readable. Check these five points before ordering a display.
Subtract door frames, shelves, sockets and the space needed for ventilation around the display. Remember the bezel: the outer frame is always larger than the image.
Where will your audience be: at the counter, in a queue, across the lobby? The farther they are, the taller the image must be for your content to stay legible.
For close viewing, keep the center of the screen near eye level. In busy places, raise the bottom edge above heads so the screen is not hidden by the crowd, without forcing people to look up too steeply.
Landscape suits video, dashboards and menus. Portrait works well for posters, narrow walls, pillars and shop windows. Make sure your display and player support the orientation you need.
Sunlit windows need high-brightness displays, 24/7 operation needs professional panels, and public areas may need protective glass or a sturdy mount. These constraints can limit the sizes available.
Transparent calculations
No black box: here are the guidelines the simulator uses. They are widely used rules of thumb for signage planning, to be adapted to your content and audience.
Dmax = 4 / 6 / 8 × H
The farthest viewer should be within 4 times the image height for detailed content, 6 times for typical signage and 8 times for video and large visuals.
Dmin ≈ 3438 / PPI (in)
Below this distance, a viewer with normal vision starts to see individual pixels. 4K displays halve this distance compared with Full HD at the same size.
h ≥ D / 250 … D / 150
Capital letters should be at least 1/250 of the viewing distance, ideally 1/150. The simulator converts this height into a font size in pixels for your design.
αtop ≤ 30°
The angle between the viewer's eyes and the top edge should stay under about 30°. Beyond that, people stop looking after a few seconds.

A screen's diagonal is measured in inches across the visible image. For a ratio W:H, the width equals the diagonal × W / √(W² + H²) and the height equals the diagonal × H / √(W² + H²). For a 16:9 display, that is about 87% of the diagonal for the width and 49% for the height.
The bezel adds a few millimeters to a few centimeters on each side: add it to get the real footprint on your wall.
Image dimensions of the most common 16:9 professional display sizes, from small counter screens to large-format displays. The recommended distances assume a 4K panel and standard signage content.
Values are calculated from the diagonal. The outer dimensions of a real display depend on its bezel and housing.
| Diagonal | Width × height (cm) | Width × height (in) | Image area | Viewing distance |
|---|---|---|---|---|
| 24" | 53.1 × 29.9 | 20.9 × 11.8 | 0.16 m² | 0.5 – 1.8 m |
| 32" | 70.8 × 39.8 | 27.9 × 15.7 | 0.28 m² | 0.6 – 2.4 m |
| 43" | 95.2 × 53.5 | 37.5 × 21.1 | 0.51 m² | 0.9 – 3.2 m |
| 49" | 108.5 × 61.0 | 42.7 × 24.0 | 0.66 m² | 1.0 – 3.7 m |
| 50" | 110.7 × 62.3 | 43.6 × 24.5 | 0.69 m² | 1.0 – 3.7 m |
| 55" | 121.8 × 68.5 | 47.9 × 27.0 | 0.83 m² | 1.1 – 4.1 m |
| 65" | 143.9 × 80.9 | 56.7 × 31.9 | 1.16 m² | 1.3 – 4.9 m |
| 75" | 166.0 × 93.4 | 65.4 × 36.8 | 1.55 m² | 1.5 – 5.6 m |
| 86" | 190.4 × 107.1 | 75.0 × 42.2 | 2.04 m² | 1.7 – 6.4 m |
| 98" | 217.0 × 122.0 | 85.4 × 48.0 | 2.65 m² | 1.9 – 7.3 m |
| 110" | 243.5 × 137.0 | 95.9 × 53.9 | 3.34 m² | 2.2 – 8.2 m |
Our free online tools format your videos for the resolution and orientation you just simulated. Everything runs in your browser.
Typical setups to start your simulation. Every space is different: enter your own measurements in the simulator to confirm.
Passers-by read from the sidewalk, 2 to 4 m away. Portrait screens fit narrow windows; choose high-brightness models facing the street.
Customers read prices from the queue. Mount screens above the counter and check the minimum font size: menus are detailed content.
Welcome screens, KPIs and internal news seen while walking by. Large landscape displays or a 2×2 video wall for wide halls.
Small door signs to show room bookings, and a large screen inside sized for the farthest seat at the table.
Seated viewers: use the "seated" option, keep the screen lower and avoid placing it right above the first row of chairs.
Long viewing distances and crowds: raise the screens above heads and switch to video wall mode to reach the size you need.
Any size, any brand
Disign is hardware-agnostic. Use a professional display with a built-in player, a consumer TV with an Android box, a Windows PC or a Raspberry Pi: every screen is managed from the same cloud dashboard, whatever its size or orientation.
Measure the free width and height of the wall, then decide at what height the bottom of the screen will be. Enter these values in the simulator: it lists every standard size whose outer dimensions, bezel included, fit the space and highlights the ones that also suit your viewing distance.
A 16:9 55-inch screen has an image of about 121.8 cm wide by 68.5 cm high (47.9 × 27 in). The real display is slightly larger because of its bezel, usually 0.5 to 3 cm per side depending on the model.
As a rule of thumb, the farthest viewer should be within 6 times the image height for typical signage content, 4 times for detailed information such as menus or data, and up to 8 times for video. On the near side, viewers should stand far enough not to see the pixels, which is closer with a 4K screen.
For people standing close to the screen, place the center of the image around eye level, between 140 and 175 cm. In crowded or large spaces, mount it higher so it stays visible above heads, while keeping the top edge under about 30° from the viewer's eyes.
Landscape is best for videos, dashboards and menu boards. Portrait is ideal for poster-style promotions, shop windows, narrow walls and wayfinding. Choose according to your content and the shape of the space, and make sure your player supports rotation.
It depends on the viewing distance and the screen resolution. Capital letters should be at least 1/250 of the distance, ideally 1/150. The simulator converts this into a minimum font size in pixels for your exact screen, so you can design readable content.
When the size you need goes beyond the largest single displays available, or when you want an unusual shape. Video walls combine several thin-bezel panels into one large image, but cost more and need precise mounting. Use the video wall mode to compare the final size and resolution.
Not always. 4K matters when people stand close to a large screen or when you show fine text. For screens seen from several meters away, Full HD is often enough. The simulator shows the distance at which pixels become invisible for each resolution.
Yes. Disign is hardware-agnostic and adapts to any resolution and orientation, from small counter displays to video walls. You manage all your screens from the same cloud dashboard.

Disign lets you design, schedule and broadcast content on all your screens from one dashboard: templates adapted to every format, playlists, apps and remote monitoring. Try it on your own displays.