A metric ruler is use to measure centimeter (cm) and millimeter (mm), the centimeter is a unit of length in the International System of Units; An English ruler provides incremental measurements in inches, with each inch further divided into smaller fractions.

This is an online length converter, convert millimeters (mm) to inches, centimeters (cm) to inches, inches to cm, inches to mm, include fraction and decimal inches, with a ruler to show the corresponding of units, understand your question with the best visualization.

This is an online length converter that provide conversion between imperial length unit and metric length unit, convert millimeters to feet or feet to millimeters, include fraction and decimal feet, with a ruler to show the corresponding of units, understand your question with the best visualization.

A scale ruler a tool for measuring distances and transferring measurements at a fixed ratio of length; eg. architect's scale or engineer's scale. An Architect's or scale ruler is designed for use in determining the actual dimensions of a distance on a scaled drawing.

Metric scale ruler : variable scale ruler with metric units (cm, m, km) Imperial scale ruler : variable scale ruler with imperial units (in, ft, yd, mi) Online Protractor : use this transparent protractor to measure the angle of anything

Actual size online ruler : the most accurate size ruler on the web, measure the length of an object in the horizontal direction. Vertical virtual ruler : measure the height of an object in the vertical direction.

How to use the scale factor calcutor Enter the length of A and B Number accept decimal or fraction, eg. 6, 12, 4.7, 1/2, 5 3/8 If the length units are different, choose the right unit The result (scale factor) will be calculated automatically.

Online rulers Online ruler : The most accurate size ruler on the web. Metric scale ruler : variable scale ruler with metric units (cm, m, km) Imperial scale ruler : variable scale ruler with imperial units (in, ft, yd, mi)

Are you measuring the size of some objects ? We have a well-acclaimed online virtual ruler could help you measure the length, welcome to try it and it's free. Length Unit Converters Convert cm to inches : convert mm to inches, cm to inches, inches to …

Put a virtual ruler on your image, you can move and rotate the ruler, it allows you to practice how to use a ruler to measure length.