How to change the measurement units in Blender

In this arti­cle we are going to see mea­sure­ments in Blender, for exam­ple how to change from meters to mil­lime­ters or how to change the mea­sure­ment sys­tem from met­ric to impe­r­i­al in Blender.

I have just the perfect video for this:

In this video I explain how to CHANGE MEASUREMENT UNITS in BLENDER.


We start with any 3D mod­el in which the lengths of the edges have been dis­played as shown in Fig­ure 1, we see that the edges of the plane mea­sure 2 meters each and if we go to the Trans­form win­dow of the object we see that it is posi­tioned at the ori­gin and that dis­tance is also expressed in meters.

3d model of a plane showing the length of each edge in meters in blender
Fig. 1: Plan in which the lengths of each edge are shown.
window of transformation of an object in blender where you can see the lengths expressed in meters
Fig. 2: In the object trans­for­ma­tion win­dow the lengths are expressed in meters.

The unit sys­tem win­dow in Blender is locat­ed in the prop­er­ties tab of the scene, we can access it using the icon shown in fig­ure 3.

Scene properties tab in Blender where you can change the measurement system.
Fig. 3: Scene prop­er­ties tab in Blender where you can change the mea­sure­ment system.

There we go to the "Units" sec­tion and there we have the options to change the unit sys­tem, we are going to change the "Length" prop­er­ty from meters to mil­lime­ters, as shown in fig­ure 5.

units section in Blender that allows you to choose between the metric and imperial system and units.
Fig. 4: In the units sec­tion you can select which units to dis­play and apply a scaling.
sección unidades en Blender que permite elegir entre el sistema métrico y el imperial y las unidades
Fig. 5: Once the mea­sure­ment sys­tem has been select­ed, the units for a giv­en quan­ti­ty can be changed.

Now the lengths of the edges and the lengths appear­ing in the win­dows are expressed in mil­lime­ters, as shown in Fig­ure 6.

blender change of length units to millimeters
Fig. 6: By chang­ing the length units to mil­lime­ters, dimen­sions and lengths are now expressed in millimeters.

Using the imperial measurement system in Blender

If instead of meters we want to use feet or inch­es we must change the unit sys­tem from "Met­ric" to "Impe­r­i­al", as shown in fig­ure 7.

units section in Blender that allows you to choose between the metric and imperial system and units.
Fig. 7: The impe­r­i­al mea­sure­ment sys­tem can be select­ed to express lengths in feet and inch­es for example.
3d model of a plane showing length of each edge in feet in blender
Fig. 8: The dimen­sions in the plane are expressed in feet.

Now in the para­me­ter "Length" we find the units feet and inches.

units section in Blender that allows you to choose between the metric and imperial system and units.
Fig. 9: The units are changed to inches.

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