LED pixel pitch calculator
How to use it
Enter the wall size and the distance of the closest viewer — not the average one. Lobby and reception walls are most often under-specified because the design distance was measured from the middle of the room.
How this is calculated
Three distances bound the answer, all derived from the roughly one arc-minute resolving limit of 20/20 vision:
| Bound | Formula | Meaning |
|---|---|---|
| Retina pitch | distance ÷ 3.4 | Pixels genuinely indistinguishable |
| Comfortable pitch | distance ÷ 2.0 | Structure visible only if sought |
| Coarsest usable | distance ÷ 1.0 | Below this the grid dominates |
Caveat
Power and module counts are planning estimates. Cabinet dimensions, real pitch availability and power draw vary between manufacturers — confirm against the actual datasheet before it reaches a drawing.
Frequently asked
How is the recommended pitch calculated?
From the closest viewing distance. Minimum acceptable pitch is the distance in metres divided by 3.4 (the retina limit), and the coarsest acceptable pitch is the distance in metres divided by 1.0.
Why does the calculator show a range rather than one number?
Because the right answer depends on content. Text and dashboards need the finer end of the range; full-motion video tolerates the coarser end.