Board Thread:General Discussion/@comment-27324545-20160105135410/@comment-38377793-20190428040855

Here's what I think:

Frisk: 6-10

Chara: 8-13

Toriel: 30-45

Sans: 20-27

Papyrus: 19-25

Undyne: 18-27

Alphys: 18-26

Mettaton: (I know he's a robot but just for fun) 20-30

Asgore: 30-45

Flowey: Immortal...?

Asriel: 7-12

Gaster: 39-49

tEmm|E: 16-23

I know it's not accurate, but That's what I think makes some sense.