Find the tempo of any song by tapping along. Tap the button or press a key to the beat and read the BPM, averaged over your last taps.
Tap steadily along with the beat. The BPM is averaged over your recent taps, so it settles after four or five taps. Pause for two seconds and it resets automatically for a fresh count.
Play the song and tap the button (or any key) in time with the beat. After a few taps the tool shows the tempo in beats per minute, both precise and rounded to the nearest whole number.
It averages the time between your recent taps, so each tap refines the estimate. Keep a steady rhythm for four or five taps and it settles. Uneven tapping makes it wobble.
Most pop and rock sits around 100 to 130 BPM, ballads slower, dance and techno often 120 to 140. Tapping on the half or double beat will read half or twice the real tempo, so tap the main pulse.