QGIS: Measure Length / Calculate Distance

Let's learn how to measure length of some route of a road, or a polyline, or a pipeline using QGIS and the Field Calculator
Measure Length in QGIS
Measure Distance
Calculate length in QGIS
Field Calculator
#measurelengthqgis #calculatedistance #learnqgis

[@erikm5753]

Is it in meters, feet, miles, inches? What are the units and why is it so opaque on this front?

[@EasyyLearn]

Hey, This #length function from the Field Calculator, is a measurement of whatever map units are specified in your project properties or CRS. Mine are in meters.

[@aaceytuno]

This is wrong, this is a 2D distance and not 3D , try again

[@EasyyLearn]

The * $length* function only reports lengths from 2D geometries. Which is a well-known fact...🙂