The 20% Vault
Free tools

Free Tools for People Who Actually Apply What They Read

Simple, free tools to help you apply ideas from the books you read — no signup required.

How Long Is 10,000 Hours?13.7 years at 2 h a dayHow Many Books Before You Die?672 books left at 30How Fast Do You Read?238 wpm is the average
Free toolsNo signup to use them
Atomic Habits by James Clear, book coverFrom Atomic HabitsAtomic Habits Calculator: How 1% Better CompoundsSee how 1% better compounds to 37.78× in a year.Daily improvementDaysConsistencyUse the tool →Lifetime readingLifetime Reading Calculator: How Many Books Before You Die?How many books will you really finish before you die?AgeLife expectancyBooks per yearUse the tool →10kFrom OutliersHow Long Is 10,000 Hours? Days, Years and Mastery Calculator10,000 hours in days, weeks, months and years at your daily practice.Hours per dayTarget levelUse the tool →20%80%The Pareto principleFind Your 20%: The 80/20 Focus AuditSurface the 20% of effort driving 80% of your results.Your tasksImpact 1–10Use the tool →wpmReading-rate researchReading Speed Test: How Many Words Per Minute Do You Read?Time a short read, check you understood it, and see your words per minute.A timed passage3 questionsUse the tool →Reading timeHow Long Does It Take to Read a Book? Reading Time CalculatorHow long any book takes at your speed, and how many days at your daily reading time.PagesWords per pageReading speedUse the tool →From Four Thousand WeeksHow Many Days Old Am I?Your age in days, the weeks you've lived and the weeks left, on a printable 4,000-week calendar.Date of birthLife length in weeksUse the tool →

Each tool ends with the system that turns the number into a habit. All of it is free.

Free printables

Prefer paper? Print the system.

Habit tracker printablesMonthly, 30-day and daily trackers in A4 and US Letter. No signup.Download free Reading log and journalA reading log, a one-page-per-book journal and a yearly reading tracker.Download free Atomic Habits workbookEight pages of worksheets: identity, the Four Laws, stacking and a 30-day tracker.Get it free Atomic Habits summary PDFOur synthesis laid out for print, with two worksheets. A summary, not the book.Get it free