Perhaps we can scale BotW Link from this
ARTWORK.
This is going to be crazy. Buckle your seat belts cause we're entering Rainbow Road!
First I need to stablish Mario height as 100 cm or 3'3. I've compared him to New Donk City elements and reached this conclusion. More details
HERE.
If Mario is 100 cm tall, that makes Ganon 240 cm or 7'9 in this
OFFICIAL CHART I've also scaled. ALttP Link is 135 or 4'4 cm by the way (the same height as the
Hero of Twilight).
In The Legend of Zelda (NES) Link is half Ganon sprite, whom looks the
SAME as his ALttP version even though the model is less detailed due to graphic limitations.
Ganon: 32 pixels = 240 cm
Link: 16 pixels = 120 cm or 3'11
Using this value in the artwork above BotW Link is
160 cm or 5'2 tall.
Ps.: It may be argued that Classic Link was supposed to be the same height as his counterpart from ALttP (135 cm). If that's the case, BotW Link would be 180 cm or 5'11 tall. I think 160 cm is more consistent though.