How much methanol does it take to kill you?

If as little as 10 ml of pure methanol is ingested, for example, it can break down into formic acid, which can cause permanent blindness by destruction of the optic nerve, and 30 ml is potentially fatal, although the median lethal dose is typically 100 ml (3. 4 fl oz) (i. e. 1–2 ml/kg body weight of pure methanol ).