Some members of the r/bioniclelego Discord have been working on a project to measure every G1 set and compile them into an in-universe height spreadsheet.
All sets were measured in millimeters without their masks or helmets. Characters were measured to the tops of their heads in their tallest anatomically reasonable position and vehicles were measured in length unless otherwise labeled.
Four of the Mata are the same height, this was assumed to be the standard Toa height of 1.6 bio/7.2 feet.
The average between the height of Vakama/Matau/Onewa and the height of Nokama/Nuju was used as the standard Toa height.
Gresh was assumed to be the same height as his 2009 form, everything else is backcalculated from that assumption.
Justification for scaling systems
I assume this is uncontroversial.
The specific height for 2004+ was chosen to give all of the Metru reasonable heights and coincidentally makes the Metruan almost exactly 1 bio, Greg’s standard Matoran height. Lumping together all of these years is probably the most controversial part of this project. However, looking at the Nuva, the height difference between their 2002 and 2008 forms with this system is about as minimal as possible (nothing can salvage the Gali/Onua situation). The average height of the Mahri is actually only a couple inches taller than the average Metru. The Inika are tall, but they’re also supercharged.
Tahu Stars is newly transformed, Takanuva was recently enlarged, Skrall is a different member of the species, we’ve never seen Nektann before, and the Rahkshi is canonically not the same version we saw in 2003 (hence the feet). Gresh, although he has new armor, is mostly organic and has no excuse to change his height.
Huge thanks to all of the contributors!
mal_matoran, Keplers, toaskello, Podhakkin, Tikoro, and IXRollOutIX