Here's my guide on how to easily scale properly for that bit of extra immersion.
Recommended Converter
TheCalculatorSite • [Height Converter]
Size Comparison Site (up to 6 figures)
OddsEnds • [Comparing Heights]
How to Scale Addon
Addon based on this guide • Made by @gardener • [Addon Download]
List of Model Heights (Scale 1)
How to Scale
How to Measure Models Manually
Useful links to check out
Height chart on Wowpedia - Not all accurate, check notes for the accurate/confirmed heights
Model heights on Wowpedia - More accurate than some heights on the above link, added by me, ofc
Average troll subspecies height - Researched & added by me, ofc
Update - 10/05/2019
I recently found a way to get the exact model heights for every playable race, thus it was time to start updating this page.
I've re-designed the post itself a bit, changed wording, toned down the colour usage and various other things to hopefully make it easier on the eyes. I also changed the calculator links to a much better alternative, it is the most accurate converter I've found and is something I used in the making of the height chart below.
Added dwarves to the list because apparently I forgot them lmao. Also added Kul Tirans and Zandalari rather than forgetting to do it later.
In this update I'll include my personally made player model height chart I made using WMV, Blender and Photoshop, as it is currently the most accurate one to date. (Goblins and worgen will be added once their model updates are out.)
Changelog - 13/07/2020
Changelog - 16/03/2021
All races now display max 6 decimals on centimetres.
World of Warcraft only accepts up to 6 decimals.
Tauren & Highmountain Tauren
Lore height and scale added.
Zandalari Troll
Lore height and scale added.