🔢 Free Number Memory Test Online
A growing sequence of digits flashes on screen. Memorize it, then type it back. Each round adds one more digit. Test your digit span!
About Digit Span & Number Memory
Your digit span — the number of digits you can recall in sequence — is a core measure of working memory capacity. Psychologist George Miller found the average human can store 7 (±2) items in short-term memory. This test tracks how you compare and improves your recall with regular practice.
Frequently Asked Questions
What is the average digit span for adults?
The average adult can hold 7 digits (plus or minus 2) in short-term memory, known as Miller's Law.
What does a number memory test measure?
It measures your digit span — how many numbers you can hold and recall in sequence, a core component of working memory.
Can you improve your number memory?
Yes. Chunking strategies, regular practice, and mnemonic techniques can all improve your digit span significantly.
What is a good score on a number memory test?
Recalling 7+ digits forward is considered average to good. 9+ digits is excellent and above average.