Need help calculating the measurements of rope

[irikuwo]

175 cm (5'8 for my americans), around 85 kg. i need help with the measurements, like the optimal rope because i don't know much about it (due to legal reasons and rules this is only because of curiosity). like width, maybe length? what do i use to measure it?

 

[particularrodent]

i dont have anything to respond to in terms of your question but your BEAST dazai pfp is peak. hoshikawa is everything

edit: wait that's not BEAST that's fifteen dazai. i am a fool. i thought he was wearing the scarf for some reason