They are called transfem feet and transmasc feet. The conversions to Standard Burger Units (sbu) are as follows:
1 foot (transfem) = 1.1 foot (sbu)
1 foot (sbu) = 1.1 foot (transmasc)
If you're a transfem who would be 6' (sbu), you are now 5'5" (tf). If you're transmasc and would be 5'5" (sbu), you are now 6' (tm).
These new units could help marginally with height dysphoria, and the only tradeoff is being extremely confusing.
Thank you and you're welcome.
fun fact: I’m pretty sure I’m closer to 196cm now, thanks to HRT’s effects on my back muscles effectively rearranging my pelvis and spine a bit.
That's a good point I should re-measure myself. But I haven't been on hrt that long so I'm not expecting a big change yet.