HoerevSuper Soft Modal Spandex Harem Yoga Pilates Pants

Q: What size would you guys suggest for a lady that is 5ft 7in tall and a size 16 to 18?

I'm a size 32/33 inch waist, ordered these in a medium and they fit nicely not to tight, but not loose to fall down, they do have a good elasticated waistband. I guess a 32/33 waist is roughly about a size 14. The length is perfect for my leg and I'm 5'10. I'm not at a guess and using this info I'd say go for a large.

Q: Im 10-12 do i need a s or m ?

I recommmend a M or even a L. Unless you would like a snug fit.

Q: What uk size does the xxxl equate to?

I'm a size 18/20 and they fit great. I have 32/33" leg and they bag nicely round the ankle as well, so I am very pleased with these. I have several pairs!