Free tools
Billboard legibility previewer
Your design stays on your device. See it at the size a driver sees it, and check text size and word count against outdoor rules of thumb.
PNG or JPG. Processed in your browser only.
Upload a design to see the simulation.
At 50 m
7.0° wideText must be ≥ 41.7 cm
In view 3.6s · needs 1s
Enter your text heightAt 100 m
3.5° wideText must be ≥ 83.3 cm
In view 7.2s · needs 1s
Enter your text heightAt 200 m
1.7° wideText must be ≥ 166.7 cm
In view 14.4s · needs 1s
Enter your text height
Rules of thumb: letters stay readable to ~120× their height (2.5 cm per 3 m); drivers read ~3 words a second plus ~1 s to notice; 7 words or fewer.