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Number Memory Test
Memorize the number shown on screen, then type it. Each correct answer adds a digit. The test finds the longest number you can hold.
Score Guide
Typical short-term memory capacity is 7±2 digits (Miller\u2019s law). Techniques like chunking can push it higher.
SS
Genius memory
Exceptional short-term memory. A level very few reach.
15+ digits
S
Excellent
Beyond the typical upper limit.
12-14 digits
A
Great
Above-average memory and strong focus.
9-11 digits
B
Average
The normal short-term memory range (7±2).
7-8 digits
C
Below average
Chunking will help you improve.
5-6 digits
D
Keep practicing
Find a focused environment and try again.
1-4 digits
Last 10 Scores
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What Is the Number Memory Test?
The number memory test (digit span test) evaluates working memory capacity. You memorize a string of digits and reproduce it after it disappears. Psychologist George Miller\u2019s "magical number 7±2" holds that human short-term memory spans about 7 items (a range of 5-9). * This is a simple browser test — treat results as a benchmark.
Short-Term Memory and Digit Span
Digit span also appears as the digit-recall task in the WAIS-IV (Wechsler Adult Intelligence Scale) and correlates closely with attention and concentration. Longer spans tend to predict better performance on cognitively demanding work like complex calculation and reading comprehension. There are forward (recall as shown) and backward (recall reversed) versions — this test measures forward span.
How to Improve Your Memory
- Chunking: group digits in twos and threes (e.g. 1492 → 14-92)
- Rhythm: recite with breaks, like a phone number
- Visual imagery: memorize the shapes of the digits as a picture
- Repetition: consistent training improves working memory
- Focus: work somewhere quiet with distractions removed
Frequently Asked Questions
Q. What is the average digit span?
A. The typical adult digit span is around 7 digits. A range of 5-9 is considered normal, and most people fall within 7±2.
A. The typical adult digit span is around 7 digits. A range of 5-9 is considered normal, and most people fall within 7±2.
Q. Can memory be trained?
A. Yes. Memory techniques like chunking and rehearsal, practiced repeatedly, improve short-term memory performance — though whether the base capacity of working memory can expand substantially is still debated.
A. Yes. Memory techniques like chunking and rehearsal, practiced repeatedly, improve short-term memory performance — though whether the base capacity of working memory can expand substantially is still debated.
Q. Does age matter?
A. Digit span typically peaks in your 20s and declines gently with age. Individual variation is large, and staying mentally active helps maintain it.
A. Digit span typically peaks in your 20s and declines gently with age. Individual variation is large, and staying mentally active helps maintain it.