Do you have any pictures of him just standing next to Goku?
Let's say Meta-Cooler and Cooler are the same height, generally, he looks to be Goku's height more or less. Watching movie 5, Cooler looks to have the edge on Goku, but Meta-Cooler seems to be the exact same height I'd say since Goku goes toe to toe with Cooler as equals.
Well clearly I was wrong. 3rd form Freeza is both taller and bulkier than 2nd form Freeza (what is with the gargantuan shoulders?). Cold looks a little too small in that picture (2nd form Freeza shouldn't be at his upper chest like he is here), but this at least is further evidence that he dwarfs Freeza's 2nd form.
Still, he is MUCH bigger than his sons and practically everyone else.
clearly, Ten is way too tall early on. What is he, like 6'7? He should've been a basketball player. It's not too crazy though; the top of Goku's head goes past his chin, and Yamcha's head comes up to his eyes. At least he doesn't look seven feet tall like in the M3 height chart.
Yes, way too tall for his official listing, but during that timeframe, he was huge! He looked bigger than Piccolo during the tournament. Training under 10x gravity gave him huge shoulders but he shrunk! Now, he is in the same proportions to Goku and the gang in the 23rd Tenkaichi Budokai so it isn't wrong either. Much like Vegeta, it seemed to have been retconned. He looks to have been that height when first introduced and had his height retconned later.
Piccolo, I think we established that he has continued to grow, is correct in the picture. Taller than Yamcha and much taller than Goku, but not tall enough where he is a whole foot ahead of Yamcha. I think it is right for that arc it was drawn for. Goku still comes up around his shoulders despite Piccolo still being far away from his peak. When he is first introduced he could pass for even being shorter than that.
The Ox-King continues to have no size consistency. Here, he looks huge, but still theoretically within really, really tall range for a real life human, like Kevin Peter Hall or Andre Rousimoff. Goku reaches his chest, and Yamcha his shoulders. Maybe 7'2 here? He'd clearly be shorter than Super Buu, an eight footer, judging by his comparison here to less-than-peak Piccolo and 5'9 Goku, but later Buu arc height charts have him looking 9-10 feet tall.
Ox-king was as big as a house, or as big as he is here, or smaller even. If we go with the
average, I'm going to say this picture would be accurate. Ox-king could be Piccolo's peak height or much more (see him being the size of a house). So, it's safe to say his average would be 7'2", like Andre The Giant. I'm good with that. But when he is in his beast/demon mode, I will give him the edge of being 9 feet tall and as wide as a (small) house.
My favourite art style (and animation) outside Toriyama who worked on Dragon Ball: Katsuyoshi Nakatsuru, Masaki Satō, Minoru Maeda, Takeo Ide, Hisashi Eguchi, Katsumi Aoshima, Tomekichi Takeuchi, Masahiro Shimanuki, Kazuya Hisada