Unfortunately, the sizing charts I’ve seen are bust, waist, and hips. None I’ve seen have length/height in their measurements. Not sure if this helps, but for singlet/torsette, some manufacturers also have dress sizes, but realize that a women’s 14 from one manuturer could be a size 12 or 16 from another manufacturer.
I wear singlet/torsette style of shapewear now, I don’t wear the bike shorts kind due to the fact that it tends to roll down.
As some have mentioned, I used to wear multiple types of shapewear, for example the bike shorts kind and a shapewear cami – the cami I thought would help stop the roll down, well it kinda worked. But with all that shapewear I found it squished my innards in so much that sometimes I could barely breathe or eat food.