How fast should K-8 students be able to read out loud?

The chart below shows that by the end of the school year an 8th-grade student should be able to read out loud 151 words per minute.

(No mistakes! WCPM = Words Correct Per Minute)

An 8th-grade student at the top of his or her class can read out loud 199 wpm.

SO: at the end of 8th grade, students should be reading 150 to 190 wpm.

art11200_screening.jpg_686×731_pixels Hasbrouck Tindal Fluency Norms

Screening, Diagnosing, and Progress Monitoring for Fluency: The Details By: Jan Hasbrouck

How fast is fast enough?

A rough rule of thumb: many “component skills” (e.g. writing a grammatically correct sentence, properly punctuated) can be performed as fast as you can write or type, assuming you write or type very quickly. I type 110 wpm, and I can write sentences at that rate. That means I’m fluent in sentence-writing: I  can write a complicated sentence quickly, accurately, and automatically, without having to think about it.

Frequency aims for handwriting, sentence combining, and college-level reading:

  Handwriting (or typing) 180-160 letters or punctuation marks per minute  
  Sentence combining 25 to 20 words combined into grammatically correct, properly punctuated sentences in 3 minutes; no mistakes  
  College-level reading 250 to 200 words read out loud with no more than 1 or 2 errors per minute

Precision teaching materials always put the high aim first, so I am following suit.

Timing charts and instructions here.

Doesn’t Everybody Need Fluency? by Carl Binder, Ph.D.