How to Use the Tap Tempo BPM Calculator
Audiocolour's free Tap Tempo BPM Calculator helps you find the tempo of any song, match a sample to your project, work out how long a loop will last, and check tempo-synced delay times, all from one page.
Find a Song's BPM
Listen for the beat and tap the large TAP button in time with the music, using whichever is easiest for you: a mouse, a touchscreen, or your keyboard. The reading becomes more stable the longer you keep tapping, so it's worth going for several beats rather than stopping after two or three.
The BPM display updates with every tap, and the consistency indicator next to it shows how evenly your taps are spaced. Keep in mind that it only measures how regular your timing is, so a steady result doesn't necessarily mean you've landed on the song's true tempo.
If you already know the BPM, you can simply type it in instead of tapping.
Match a Sample to Your Project
Tap or enter the sample's current BPM, then type in your target Project BPM. The calculator will show you the percentage tempo change needed to match your project, along with the sample's new length as a percentage of the original.
As a general rule, a faster project tempo means the sample will play faster and end up shorter, while a slower project tempo means it will play more slowly and end up longer.
Calculate Loop Duration
Choose a time signature and the number of bars, and the calculator will estimate how long the loop lasts at your current BPM. The result updates automatically whenever you change the tempo, the time signature, or the bar count.
Throughout the tool, BPM is treated as quarter notes per minute. This is worth knowing if you work in 6/8, because although musicians often feel that time signature as two main beats per bar, the duration is still calculated using the quarter-note convention.
Preview Delay Times
The Delay Times panel works out straight, dotted, and triplet durations for quarter, eighth, and sixteenth notes, and each millisecond value has its own copy button so you can paste it straight into your plugin or DAW.
These values are meant as timing references for your own production work, since the calculator itself doesn't process audio or apply any effects. If you need more detail, the full Audiocolour Delay Calculator has the complete set of delay-time tools.
Typical BPM Ranges by Genre
The expandable genre reference lists common starting ranges for styles such as dub, hip-hop, house, techno, trance, dubstep, drum and bass, downtempo, and lo-fi.
It's best to treat these ranges as a loose guide, because genres often overlap, individual tracks vary quite a bit, and a half-time feel can make a track sound noticeably slower than its actual BPM.
Frequently Asked Questions
How many times should I tap to find the BPM?
Tap at a steady pace for several beats. The calculator gives you an estimate as soon as it has two taps to compare, but the consistency indicator needs a few more before it can tell you how stable your timing is.
Why does the BPM change while I'm tapping?
The estimate is based on the intervals between your most recent taps, so the small variations that come naturally with human timing will nudge the number up and down. If you keep tapping steadily, the reading will settle into a more consistent result.
What do half-time and double-time mean?
These controls reinterpret the current tempo at half or twice its value, which is useful when a rhythm could reasonably be counted at more than one speed. They only change the number shown, not the audio itself.
Does Match This Sample change the sample's audio?
No, it only calculates the tempo change and duration ratio you'll need to match your project tempo. Any actual changes to the audio have to be made in your own audio software.
How is loop duration calculated in 6/8?
The calculator uses quarter-note BPM for every time signature it supports, so in 6/8 each bar is counted as six eighth-note units, even though the music itself may feel like it has two main beats.
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