What is a Ruler

A ruler is a machine with measurement markings on it supplied for measuring drawing straight lines. Students, engineers, contractors, and makers use rulers because that math, construction, architecture, sewing, landscaping, and also more.

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

Several varieties of rulers include wooden or metal rulers, yardsticks, seamstress tapes, measure tapes, carpenters rules, and architects scales.

Rulers have actually measurements in imperial and also metric, imperial-only, or metric-only. Get more information on rulers, consisting of different species and uses, or download and also print one of our totally free printable rulers.

How to usage a ruler – Standard imperial Measurements


The markings top top a traditional ruler represent the fountain of one inch. The markings top top a ruler from the begin to the 1″ mark 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 measure up is over 1″, merely use the number top top the leader and add the fraction. Because that instance, if you’re 2 ticks previous the number 3 tick, climate the measure is 3 1⁄8“.

Reading a leader starts with knowledge what every the ticks mean. The largest ticks ~ above a ruler represent a full inch, and also the distance in between each large tick is 1″.

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

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

The smaller ticks room the eighth-inch ticks and may be the smallest or second smallest markings ~ above the ruler. The distance in between an eighth-inch tick and the other larger ticks is 1⁄8“.

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

Ruler Measurements: customs Fractions top top a Ruler

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

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Fraction, Decimal, and Millimeter identical Measurements

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