letter visibility chart
Maximum Readable Distance Readable Distance for Maximum Impact Letter Height
100' 30' 3"
150' 40' 4"
200' 60' 6"
350' 80' 8"
400' 90' 9"
450' 100' 10"
525' 120' 12"
630' 150' 15"
750' 180' 18"
1000' 240' 24"
1250' 300' 30"
1500' 360' 36"
1750' 420' 42"
2000' 480' 48"
2250' 540' 54"
2500' 600' 60"
The letter visibility chart has been made for you based on information provided by the California Institute of Technology. The distances will vary approximately 10% with various color combinations.