What is a Ruler

A ruler is a device with measurement markings top top it offered for measuring illustration straight lines. Students, engineers, contractors, and also makers usage rulers for math, construction, architecture, sewing, landscaping, and also more.

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According come Dictionary.com, a leader is a strip of wood, metal, or other material having actually a straight edge and also usually marked off in customs or centimeters, supplied for drawing lines, measuring, etc.<1>

Several species of rulers encompass wooden or metal rulers, yardsticks, seamstress tapes, ice cream measures, carpenters rules, and also architects scales.

Rulers have measurements in imperial and metric, imperial-only, or metric-only. Get an ext information top top rulers, consisting of different species and uses, or download and print among our free printable rulers.

How to use a ruler – Standard imperial Measurements


The markings ~ above a conventional ruler stand for the fountain of an inch. The markings ~ above a leader from the begin to the 1″ note are: 1⁄16“, 1⁄8“, 3⁄16“, 1⁄4“, 5⁄16“, 3⁄8“, 7⁄16“, 1⁄2“, 9⁄16“, 5⁄8“, 11⁄16“, 3⁄4“, 13⁄16“, 7⁄8“, 15⁄16“, and 1”. If the measurement is over 1″, simply use the number on the ruler and add the fraction. Because that instance, if you’re two ticks previous the number 3 tick, then the measure is 3 1⁄8“.

Reading a ruler starts with knowledge what every the ticks mean. The biggest ticks on a ruler stand for a complete inch, and also the distance between each big tick is 1″.

The big ticks in in between the customs markings are half-inch markings, and also the distance in between an customs tick and a half-inch tick is 1⁄2“.

The mid-sized ticks between the customs ticks and half-inch ticks space the quarter-inch ticks. The distance in between a quarter-inch tick and an inch mite or a half-inch tick is 1⁄4“.

The smaller ticks room the eighth-inch ticks and may be the the smallest or 2nd smallest markings on the ruler. The distance between an eighth-inch tick and the other larger ticks is 1⁄8“.

The the smallest ticks ~ above a ruler are the sixteenth-inch ticks. The distance between a sixteenth-inch tick and the other larger ticks is 1⁄16“.
Metric rulers have centimeter and millimeter markings. The larger markings these stand for a centimeter.
The smaller sized ticks on a metric ruler stand for a millimeter. There room 10 millimeters in a centimeter, so there space 9 millimeter ticks in between each centimeter tick.

Ruler Measurements: customs Fractions ~ above a Ruler

These room the measurements and fractions that room on a ruler and the decimal and millimeter metric equivalents. If you need to convert larger customs fractions come decimal or metric, usage our inch portion calculator.

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Fraction, Decimal, and Millimeter tantamount Measurements

Ruler portion measurements converted to equivalent decimal and millimeter metric values.FractionDecimalMillimeters