Ways to calculate the size of LED video display wall?

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