The time it takes to read 100 pages varies depending on reading speed and text complexity, but here are the key estimates based on average reading speeds:

• The average adult reading speed is about 238 to 300 words per minute (WPM) for silent reading

• A typical page contains roughly 500 words

Using these numbers:

• At 300 WPM, reading 100 pages (about 50,000 words) takes approximately 2.8 to 3 hours

• At a slower speed of 150 WPM, it could take about 5.6 hours

• Faster readers at 450 WPM might finish in about 1.9 hours

Another source estimates about 3 hours and 30 minutes for 100 pages at an average speed of 238 WPM, which aligns closely with the above calculations

. In summary, most average readers will spend roughly 2.8 to 3.5 hours reading 100 pages, but individual times vary based on speed and text difficulty.