Letter height visibility chart

When it comes to signs, visibility is paramount. Where a sign is placed and how it is being received (Driving in a car, for example), is a key factor when deciding what content will go on the sign. Have you ever drivin by a nice looking, well designed sign  but found it very difficult to read past the first line or two? Our chart below is a commonly accepted scale of visibilty for certain letter heights.

Letter Height

(Inches)

Distance For

Best Impact (feet)

Maximum Readable Distance (feet)

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′