Some rules of thumb I use for estimating this kind of stuff 100wpm: Max typing speed 200wpm: Max speaking speed 300wpm: Max listening speed, max reading spee

Some rules of thumb I use for estimating this kind of stuff 100wpm: Max typing speed 200wpm: Max speaking speed 300wpm: Max listening speed, max reading speed with subvocalisation 900wpm: Max reading speed without subvocalisation