How the keyboard CPS test works
Choose Any key to count letters, numbers, arrows and space, or Z + X to count only those two keys, as in osu!. The first press starts the timer, and holding a key does not count. Your score is KPS: keys per second.
From KPS to BPM
For osu! streams of quarter notes, multiply your KPS by 15 to get the BPM you can tap: 10 KPS is 150 BPM and 12 KPS is 180 BPM. Not sure of a song’s tempo? Use the BPM tapper.
What is a good keys per second score?
Many people start around 6 to 8 KPS with Z + X over 10 seconds, and regular rhythm game players often reach 10 to 13. Tap lightly and alternate two fingers to go faster.