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Letter Visibility Chart

Letter Height Readable Distance for Maximum Impact Maximum Readable 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' 1,000'
30" 300' 1,250'
36" 360' 1,500'
42" 420' 1,750'
48" 480' 2,000'
54" 540' 2,250'
60" 600' 2,500'

Maximum Distance in color would be RED or BLACK on WHITE Background
5,280' equals 1 mile.