LETTER VISIBILTY CHART

LETTER HEIGHT

MAXIMUM HEIGHT

MAXIMUM READABILITY DISTANCE

3"

30'

100'

4"

40'

150'

6"

60'

200'

8"

80'

350'

9"

90'

400'

10"

100'

450'

12"

120'

525'

15"

150'

630'

18"

180'

750'

24"

240'

1000'

30"

300'

1250'

36"

360'

1500'

42"

420'

1750'

48"

480'

2000'

54"

540'

2250'

60"

600'

2500'

The following distances will vary approximately 10% with different color combinations.

The best long distance colors are RED or BLACK, on a WHITE background.

5,280' = 1 mile

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