Tap tempo measures the time between your taps and turns it into beats per minute. If you tap exactly every half second, that’s two beats per second, or 120 BPM. The formula is simple: BPM equals 60,000 divided by the gap between taps in milliseconds.
One gap on its own is a poor measurement, because nobody taps with machine precision. So this counter averages every gap in your current run. Before averaging, it compares each gap with the median: a gap more than 30% away, like a double tap or a missed beat, is treated as a stray and left out. That keeps one slip from pulling the whole reading off.
Two readings help you judge the result. Average uses the whole run and is the number to copy. Last 4 uses only your four most recent gaps, so it reacts quickly. When the two agree and the stability meter reads Steady or Locked in, you can trust the number. When Last 4 keeps rising or falling, the music is changing speed.
How to tap accurately
Start by listening, not tapping. Count a bar or two in your head, find beat one, and begin tapping there. Tapping a pulse you’ve already found is far steadier than searching for it with your finger.
Tap the main beat. In most pop, rock, hip-hop and electronic music that’s where the kick and snare alternate, the quarter-note pulse you’d nod your head to. Hi-hats and shakers often run twice as fast; tapping them gives a double-time reading.
Use a small motion. Tapping a key or a phone screen with one finger is steadier than slapping a desk, and the tap is registered at the moment the key or screen is pressed, using the event’s own timestamp. Keep going for eight to sixteen taps; more taps average out more of your natural variation.
Watch the timing graph. Each bar is one gap: bars above the line came late, bars below came early. If they alternate evenly around the line, you’re steady. If they lean one way for a while, you’re drifting, or the song is.
Half time, double time and the ×2 button
Many songs can be counted at two speeds. A trap beat programmed at 140 BPM often feels like 70, because the snare lands on beat three. Drum and bass sits around 170–175 BPM, but the heavy backbeat feels half that. Neither count is wrong; they describe the same pulse at different levels.
Tap whichever pulse is comfortable, then use ×2 or ÷2 to get the number your context expects. DJs and producers usually use the faster figure for drum and bass and the programmed tempo for trap; a dance teacher may want the slower one. The original tapped value is shown underneath so you never lose track.
The same trick helps at extreme tempos. Above about 200 BPM, tapping every beat gets tiring and uneven, so tap every other beat and press ×2. For a slow ballad, tapping eighth notes and pressing ÷2 is often steadier than waiting through long gaps.
Typical BPM ranges by genre
Genres don’t have fixed tempos, but most music in a style clusters in a typical range. Use the table as a sanity check: if you tap a house track and get 63, you’re probably tapping half-time, so press ×2.
| Genre | Typical BPM | Notes |
|---|---|---|
| Ballads and slow R&B | 60–80 | often easier to tap in eighths, then ÷2 |
| Reggae | 60–90 | the one-drop feel can make it seem slower |
| Hip-hop | 80–100 | classic boom-bap sits near 90 |
| Reggaeton | 88–100 | steady dembow pattern, easy to tap |
| Pop | 100–130 | a broad range; many hits sit near 120 |
| Rock | 100–140 | live recordings drift, so watch Last 4 |
| Disco and funk | 110–130 | tap the four-on-the-floor kick |
| House | 120–128 | rarely far from 124 |
| Techno | 125–140 | newer styles can run faster |
| Trance | 130–140 | |
| Trap | 130–150 | often felt at half speed, 65–75 |
| Dubstep | around 140 | felt as 70 |
| Drum and bass | 170–175 | backbeat felt at half speed |
Treat these as typical ranges rather than rules. Plenty of songs sit outside them, and a tempo that seems wrong for the genre is a hint to check for half or double time, not proof of a mistake.
Using a tapped BPM as a DJ or producer
For DJs, the BPM tells you how far apart two tracks are. Tracks a few BPM apart can usually be blended by nudging the pitch fader; tracks far apart may need a half-time or double-time mix, or a different transition. Pair the tempo with the key from Song Key Finder and the Camelot Wheel to plan harmonic mixes.
For producers, set the project tempo to the tapped BPM before importing a sample so bars line up with the grid. If you need the exact figure from a file rather than your ears, BPM Finder detects it from the audio, and MP3 to MIDI can turn the recording into notes on the same grid.
The beat interval is also handy for effects. One beat lasts 60,000 ÷ BPM milliseconds: at 120 BPM that’s 500 ms, so a quarter-note delay is 500 ms, an eighth note 250 ms and a dotted eighth 375 ms. The counter shows the interval next to the BPM, so you can set delay and reverb pre-delay times by ear and by number.