How long does it take to read The Immortal Life of Henrietta Lacks?
by Rebecca Skloot
Checked July 2026
6h 47m
101,750 words at 250 a minute
At 30 minutes a day, you would finish in about 2 weeks.
That is 14 sessions with The Immortal Life of Henrietta Lacks.
Read it with the Guild45 minutes a day would finish it in about 10 days.
How many words is The Immortal Life of Henrietta Lacks?
The Immortal Life of Henrietta Lacks is about 101,750 words, estimated from its 370 pages at about 275 words a page. At 250 words a minute, that comes to 6 hours 47 minutes.
Most reading-time sites default to 300 words a minute. The best evidence we could find, a 2019 meta-analysis of 190 studies by Marc Brysbaert, puts silent adult reading of English prose closer to 238 words a minute for non-fiction and 260 for fiction. We use 250. It is slower than the number you will see elsewhere, and it is closer to how people actually read.
This is still a model, not a measurement. When enough ReadersGuild readers have finished The Immortal Life of Henrietta Lacks, we will replace this estimate with the time they actually took.
How many pages is The Immortal Life of Henrietta Lacks?
- Pages
- 370
- Author
- Rebecca Skloot
- Genre
- non-fiction
Read it with the Guild
Read The Immortal Life of Henrietta Lacks at a fire.
ReadersGuild opens soon. You have the hours. The hard part is sitting down for them. Open a fire and up to twenty readers sit with you, each with their own book, and nobody has to remember to log it afterwards.
“I built this once before. People kept their books in it, their sessions, their whole year, and I shut it down. This is me building it again properly, and everyone who was on the first one comes back as an Elder.”
One person, in San Francisco. iOS first, Android on the way.