How to calculate the size of LED display?

How to calculate the size of the LED display? this is a frequently-asked question that many clients ask, how to get the width and height if we just only get the LED display area size? and what about the exact size of LED display if we just only get the width and height of LED display?

First, we just only know the specific width, height and the LED display module size. For example, we want to make an P5 outdoor led display, the witdh is 10 meter, the height is 3 meter. and the module size is 320mm*160mm. then we need to calculat how many LED display modules we needed with following formula.

The quantity of LED display module in horizontal = the width of LED display ÷ the width of LED display module
The quantity of LED display module in vertical = the height of LED display ÷ the height of LED display module
So for 10x5m outdoor P5 LED display,
The quantity of LED display module in horizontal = 10 * 1000 ÷ 320 = 31.25 ≈ 32pcs
The quantity of LED display module in vertical = 3 * 1000 ÷ 160 = 18.75 ≈ 19pcs
After we get the exact quantity of LED display module we needed, then we can calculate the exact size of the LED screen with following formula.
The width of LED display = The quantity of LED display module in horizontal x the width of LED display module.
The height of LED display = The quantity of LED display module in vertical x the height of LED display module.
So for 10x3m outdoor P5 LED display,
Exact LED display width = 32 * 320mm = 10240mm = 10.24m.
Exact LED display height = 19 * 160mm = 3040mm = 3.04m.
Exact LED display area size = 10.24 x 3.04 = 31.1296 Square meter.

P6 indoor led display

Another example, we want to make an P6 indoor led display, the witdh is 6 meter, the height is 3 meter. and the module size is 192mm*192mm.
The quantity of LED display module in horizontal = 6 * 1000 ÷ 192 = 31.25 ≈ 32pcs
The quantity of LED display module in vertical = 3 * 1000 ÷ 192 = 15.625 ≈ 16pcs
Exact LED display width = 32 * 192mm = 6144mm = 6.144m.
Exact LED display height = 16 * 192mm = 3072mm = 3.072m.
Exact LED display area size = 6.144 x 3.072 = 18.874368 Square meter.

To calculate the size of an LED display, you need to determine the total dimensions by considering the resolution, pixel pitch, and the number of modules or cabinets.

Here’s a step-by-step guide to calculating the size:

1. Understand Pixel Pitch (P)

Pixel pitch is the distance between the center of one LED pixel to the center of the next pixel, usually measured in millimeters (e.g., P4 means 4mm pixel pitch).

Pixel pitch determines the resolution and visual quality of the display.

2. Calculate Total Resolution

Resolution refers to the total number of pixels in the display’s width and height. For example, a resolution of 1920×1080 means the display has 1920 pixels in width and 1080 pixels in height.

Resolution is usually defined by the number of pixels per module or cabinet.

3. Determine the Number of Modules or Cabinets

LED displays are typically made up of multiple modules or cabinets with a fixed number of pixels. The number of modules determines the overall size of the display.

Module size varies by manufacturer, but common sizes include 320mm x 160mm, 640mm x 480mm, etc.

4. Calculate Width and Height

The formula to calculate the display size is:

Total Width=Pixel Pitch (mm) × Horizontal Pixels

Total Height=Pixel Pitch (mm)×Vertical Pixels

For example, let’s calculate the size of an LED display with the following characteristics:

Pixel pitch: P4 (4mm)

Resolution: 1920 pixels (width) x 1080 pixels (height)

Width=4mm×1920=7680 mm=7.68 meters

Height=4mm×1080=4320 mm=4.32 meters

Therefore, the display size is 7.68m (width) x 4.32m (height).

5. Consider the Module or Cabinet Size

If your display is built from standard-sized LED cabinets (e.g., 960mm x 960mm), you can determine how many cabinets will fit within your desired resolution by multiplying the cabinet dimensions by the number of cabinets in both width and height.

Example with Cabinets:

If each cabinet is 960mm x 960mm and you want a display of 1920×1080 resolution with a P4 pixel pitch, you would need:

Width: 2 cabinets (960mm each)

Height: 2.5 cabinets (960mm each)

Resulting in a display size of 1920mm x 2400mm (1.92m x 2.4m).

To calculate the size of an LED display, multiply the pixel pitch by the number of pixels for width and height.

Make sure to consider module sizes and cabinet configurations for larger displays. This will give you the exact dimensions needed for your installation.