What I Know For Sure: Audiobook
According to The Books Insider's catalog data, the What I Know For Sure audiobook runs 3.9 hours unabridged, narrated by Oprah Winfrey (about 2.6 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 3.9 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 8 days |
| 1 hour / day | 4 days |
| 2 hours / day | 2 days |
| 1 hour / day at 1.5× | 3 days |
You'll finish in – by –
Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.
What our data says
- At 3.9 hours, it runs longer than 55% of the 4,105 Mindfulness & Meditation audiobooks in our catalog.
More narrated by Oprah Winfrey
Oprah Winfrey narrates 9 unabridged audiobooks in our catalog, 48 hours in all.
- The Path Made Clear: Discovering Your Life's Direction and Purpose
- More Myself: A Journey
- Note to Self: Inspiring Words From Inspiring People
- The Wisdom of Sundays: Life-Changing Insights and Inspirational Conversations
- Build the Life You Want: The Art and Science of Getting Happier – The New York Times Bestseller
About as long, on the Mindfulness & Meditation shelf
266 Mindfulness & Meditation audiobooks in our catalog run within 10% of this length. The most popular on the store:
- I've Been Thinking . . .: Reflections, Prayers, and Meditations for a Meaningful Life
- Yoga Sutras of Patanjali: The Book of the Spiritual Man (Version 3)
- Love for Imperfect Things: How to Accept Yourself in a World Striving for Perfection
- MANIPULATION AND DARK PSYCHOLOGY: Secrets of Dark Psychology, Body Language and Human Mind. Learn How to Influence People With Covert Emotional Manipulation Techniques, Brainwashing, and Mind Control.
- Everything in excess is good: Written and narrated by Diego Segura
Computed from 170,512 English-language unabridged audiobooks in The Books Insider catalog (store data read October 21, 2026). Lengths are the store's own running times. Methodology.
About this listen
What I Know For Sure is an audiobook by Oprah Winfrey: a 3.9-hour unabridged recording, read by Oprah Winfrey, released September 2, 2014, on the Mindfulness & Meditation shelf.
The listen at a glance
- Length
- 3.9 hrs
- Narrated by
- Oprah Winfrey
- Released
- September 2, 2014
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Mindfulness & Meditation
- ISBN
- 9781427258274
How to listen to What I Know For Sure free
New members at audiobooks.com get three free audiobooks with the trial.
Separately, the store's catalog carries more than 10,000 audiobooks that are always free to stream.
Start listening freeQuestions listeners ask
How long is the What I Know For Sure audiobook?
What I Know For Sure runs 3.9 hours unabridged. At 1.5× speed that drops to roughly 2.6 hours.
Is the What I Know For Sure audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates What I Know For Sure?
What I Know For Sure is narrated by Oprah Winfrey.