Select the best letter size for your sign

There are two primary factors that determine the best letter size for your sign: distance and speed. Our Letter Sizing Calculator simplifies the math for you.

Distance: Enter the viewing distance (how far away you want your sign to be readable). Our calculator will calculate the minimum readable letter size. It will also provide the recommended letter size for readability.

Speed: Enter the speed limit on your street and the number of seconds you want your sign to be readable. Our calculator will calculate the minimum readable letter size. It will also provide the recommended letter size for readability.