How does a tap tempo counter work?

It records the time of each tap and averages the gaps between consecutive taps. The average interval in milliseconds is divided into 60000 to give beats per minute, so more taps produce a steadier reading.

Why did my count reset?

The window resets automatically after a pause of more than two seconds so a fresh measurement is not skewed by your previous taps. You can also press Reset at any time.

Does it use my microphone?

No — it only times your taps. No microphone, audio or network access is involved; everything stays in your browser.

How many taps do I need for an accurate reading?

Two taps give a first estimate, but four to eight steady taps smooth out timing jitter and lock the BPM to within about one beat per minute.

Is the timing precise?

It uses the browser's high-resolution performance clock where available, which is far more accurate than counting in your head, so the limiting factor is how evenly you tap.

What is the quarter-note delay time for?

It is the length of one beat in milliseconds (60000 ÷ BPM). Producers use it to set delay, reverb and LFO times so effects sync to the song's tempo.

Can I find the tempo of a song without playing it through the tool?

Yes. Play the track on any device and tap along on this page — the tool only times your taps, so it works with music from any source.

Tap Tempo — Gera Tools

Tap tempo — find the BPM of any beat

Tap tempo lets you measure the speed of any piece of music in beats per minute (BPM) without specialist gear. It is used by DJs matching tracks, producers setting delay times, drummers checking a click, and musicians transcribing a song. Play the music from any source, tap along on the button, and the estimate appears in real time.

How it works

Each tap is timestamped with the browser’s high-resolution clock. With n taps, the tool measures the total elapsed time from the first tap to the last, divides it by the number of gaps (n − 1) to get the average interval in milliseconds, then converts:

BPM = 60000 ÷ average interval (ms)

Averaging across all taps cancels out the small timing errors in any single tap, so a longer run of steady taps gives a tighter result. If you pause for more than two seconds, the window resets and the next tap starts a fresh measurement.

Example

You tap four times, evenly, one beat apart. The first and last taps are 1500 ms apart across 3 gaps, so the average interval is 500 ms. That gives 60000 ÷ 500 = 120 BPM, and the quarter-note delay time shows as 500 ms.

Average interval	BPM	Quarter-note delay
1000 ms	60	1000 ms
500 ms	120	500 ms
400 ms	150	400 ms

Everything runs in your browser — no microphone, no uploads, nothing leaves your device.