Online memory test

Digit Span Test: how many digits can you remember?

Also known as: digit span test online, short-term memory span test, number memory test, how many digits can you remember

A number with several digits appears for a second. Memorize it and type it from memory in the same order. After five correct answers in a row the number gets longer, after three mistakes it gets shorter. We start with three digits. No sign-up needed. Your result is free once you enter your email: we’ll show it to you and send it to your inbox.

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2 minutesone game
From 3 digitsgrows as you succeed
No sign-up10 minutes a day
Progress30-day chart

What it trains

What the digit span test measures

The test estimates your short-term memory span for digits: how many digits in a row you can hold and repeat after one brief look. Your result is the longest sequence you recalled without a mistake.

Most adults can hold about five to nine digits, but the result depends on attention, tiredness and memory techniques (such as splitting the number into groups). It isn’t a diagnosis: the test helps you compare your own games with each other.

You want to know your digit spanThe number grows as long as you keep up
You want to check your attention and memoryOne look, one try to type it
You’re curious about a classic methodThe test has been known in psychology for over a hundred years
You want a way to compare yourselfYour best number length is saved between games

Short-term memory span

How many digits you hold after one look.

Attention

The number is shown for about a second, so stay focused.

Memory techniques

Splitting digits into groups of two or three helps a lot.

Staying calm after a mistake

A mistake doesn’t end the game: the number just gets shorter.

Rules

How to play

Start
Press “Start”. A three-digit number appears for a second.
Memorize
Look at the digits and try not to repeat them to yourself too fast; splitting them into groups works better.
Type it
Type the number from memory on the on-screen keypad or your computer keyboard, in the same order.
Growth
Five correct answers in a row make the number one digit longer; three mistakes in a row make it shorter.

Play online

Digit Span Test online

Press “Start” and memorize the number. You can play 10 minutes a day without signing up.

Digit Span Test

A number shows for a second. Type it in the same order. Five correct answers in a row make the number longer; three mistakes in a row make it shorter. You start with three digits.

Free play left today without signing up: 10 min

Method

Where the test comes from

Psychologists have studied memory for digits since the second half of the 19th century. One of the first to describe such a task was the British scholar Joseph Jacobs: schoolchildren had rows of digits read to them, and he noted how long a row they could repeat. Later the test became part of many batteries for assessing memory and attention.

In our version, the number is shown on screen for a short time instead of being read aloud. It doesn’t replace standardized tests and doesn’t assess your health. If you’d like the backward version, open “Digits Backward”.

3Digits to startThat’s how many digits the first number has.

+1After 5 correctThe number gets longer.

−1After 3 mistakesThe number gets shorter.

Who it’s for

Which ages

Adults

A check of your short-term memory for digits and a workout for attention.

Kids

Suitable for school-age kids who know their digits and can type them quickly.

60+

A big keypad with large digits, and no rush: after the number is shown, you have plenty of time to type it.

Questions

Frequently asked questions

How many digits can a person remember?

Most adults manage about five to nine digits in a row after one look. If you split the number into groups, you can do noticeably more. This is a rough guide that depends on attention and memory technique.

How is the test different from the “Remember the Number” game?

The rules are the same. Here the game starts with three digits and is set up as a classic memory span test, while the game’s difficulty is tuned for practice.

Can I type the digits in a different order?

No. Type them the way they were shown. For the reverse order there’s a separate game, “Digits Backward”.

What happens if I make a mistake?

The game doesn’t stop. Three mistakes in a row make the number shorter, and five correct answers in a row make it longer. Your result is the longest number you typed correctly.

Is this a medical test?

No. It’s a game version of a memory task. It doesn’t diagnose anything and doesn’t replace a doctor’s advice.

Save your results and track your progress

Free sign-up: round history, a chart by skill and a daily workout of 5 exercises. No credit card needed.

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Digit Span Test: how many digits can you remember?