This chart will help determine how large your text needs to be, in order to be readable at various distances.
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’
10”
525’
120’
12”
630’
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”
