How to use the CPS test
Pick a test length
Short tests of 1 or 5 seconds show your top speed. Tests of 30 to 100 seconds show stamina, because almost everyone slows down as the hand tires.
Compare scores only with tests of the same length. A 1-second score is usually higher than a 60-second one.
Click until the time runs out
The clock starts with your first click, so take your time getting ready. Only the left mouse button counts. On a phone or tablet every tap counts, including taps with a second finger.
To test a keyboard instead, choose Spacebar presses. Press Esc or Stop test to cancel a run.
Read your result
Your score is the number of clicks divided by the test length. The box stays locked for a moment afterwards so a late click does not start a new test by accident.
Your best score for each length is kept on this device until you clear it.