A ruler, sometimes called a rule, scale, line gauge, or metre/meter stick, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" …

A ruler is a simple tool used to measure length and also draw straight lines or line segments. Learn about types of rulers, its uses, examples, & more.

Sep 3, 2025 · Whether you need to know how to read an inch ruler or how to read a metric ruler (cm ruler), this easy guide to ruler measurements has got you covered. Get an inch ruler. …

Oct 3, 2024 · A ruler is a flat, rectangular tool used to measure the length of objects in centimeters, millimeters and inches. Its shape makes it easy to measure the length of objects …

This free guide on How to Read a Ruler will teach you how to accurately measure lengths using a ruler with either imperial units (inches) or metric units (centimeters).

Learn how to use a ruler for precise measurements, from understanding metric and customary units to reading hash marks accurately. Master length measurement techniques through …

Engineering students need precise measurements while utilizing a ruler, and for that reason, they pick steel rulers. A straight and flat piece of a ruler is a steel ruler.