How to Read a Ruler – U.S Customary System. A ruler is used to measure units of length, inches, feet and yards. A standard ruler is 12 inches or 1 foot long. 3
Take a look at the following English Rulers. English Ruler A ruler marked in 8ths. Every mark is 1/8th of an inch. English Ruler A ruler marked in 16ths.
A tape measure, also called measuring tape, is a type of flexible ruler.. Tape measures come in both Imperial Units (inches and feet) and metric (centimeters .
To read a metric ruler, each individual line represents .10 (1/10) of a centimeter, or 1. . The amount of mercury can be represented in inches or millimeters.
This instructable will help you understand how to use a "standard" ruler better; specifically being able to read fractions of an inch or "Drawing the Inch" as I call it