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Outdoor Text Display Viewing Distance Guide

Digit height v's Distance/rate

Character height Approximate reading distance Approximate reading time, seconds
mm m 40km / h 56 km / h 72 km / h 89 km / h 104 / km / hr
51 31 2.7 1.9 1.5 1.2 1.0
102 61 5.5 3.9 3.0 2.5 2.1
127 76 6.8 4.9 3.8 3.1 2.6
152 91 8.2 5.8 4.5 3.7 3.1
203 122 10.9 7.8 6.1 5.0 4.2
229 137 12.3 8.8 6.8 5.6 4.7
254 152 13.6 9.7 7.6 6.2 5.2
305 183 16.4 11.7 9.1 7.4 6.3
406 244 21.8 15.6 12.1 9.9 8.4
508 305 27.3 19.5 15.2 12.4 10.5
610 366 32.7 23.4 18.2 14.9 12.6
914 549 49.1 35.1 27.3 22.3 18.9
1200 732 65.5 46.8 36.4 29.8 25.2
1542 914 81.8 58.4 45.5 37.2 31.5

 


All figures should be taken only as in indication and can be influenced by such factors as Light or weather etc.

viewing distance - led displays

Optimal Viewing Distance

optimal viewing distance led display

 

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