Free Memory Training Tools & Calculators
Build your own Major System, PAO deck and memory palace, then score, plan and test with the calculators. All free, and the calculators need no account.

Build, drill, review
Build your systems
Sign in and the builders save what you make, so the pegs, cards and palaces you build are the ones your drills use.
Score, plan, test
Calculators and tests
Turn a result into championship points, find the pace a target needs, pick an event, take a memory test or print a sheet to train on paper. No account needed.
Printable lists
Free PDFs for building a list on paper. Type it into a builder when it's done.
- PDFMajor System list, 00–99An example word for every number, with the digit sounds and a column for your own word.
- PDFPAO worksheet, 00–99A blank person, action and object row for every number, with its Major sounds as a prompt.
- PDFCard PAO worksheet, 52 cardsA blank person, action and object row for every card in the deck.
The loop
How the builders fit together
- 1Build it onceFill in your Major System pegs, PAO cards, or a palace route — a personal system you'll reuse every session.
- 2Drill it inConvert digit strings, recall PAO scenes, or walk a route cold, until the system stops needing thought.
- 3Review on scheduleWith a free account, weak pegs resurface sooner under spaced repetition; the ones you know drift further out on their own.
Memory tools questions
The short answers: what is free, which tool to open first, and what the Major System and PAO are.
Browse the technique libraryAre these memory tools free?
Yes, all of them. The calculators, the event picker and the memory tests need no account. The three builders work without one too, but you need a free account to save what you build and to use review.
Which tool should I start with?
Pick by what you want to memorize. Numbers: the Major System generator. Cards: the PAO builder. Lists and places: the memory palace builder. Not sure which memory sport event suits you? Try the event picker.
What is the Major System?
The Major System turns each digit into a consonant sound, so any number becomes a word you can picture. The generator builds a word for every number from 00 to 99 and converts longer digit strings. For the full method, read the Major System guide.
What is a PAO system?
PAO stands for person, action, object. Every card gets one of each, and three cards together make one scene: the first card's person doing the second card's action with the third card's object. The builder lets you set all 52 and drill them. The PAO system guide explains how it works.
What do the calculators score against?
Championship points measure each event's score against its Millennium Standard, the World Memory Championship's own yardstick; reaching it is worth 1,000 points. The championship score calculator covers all ten events, and the Speed Cards calculator turns a deck time into points.