SWIM by BTS: BPM and key
SWIM by BTS is 126 BPM in A major (Camelot 11B). Half time is 63 BPM and double time is 252 BPM. The relative key is F♯ minor.
Counting 126 beats every minute puts SWIM in the upbeat bracket (faster than 50% of the 20 songs we have measured). Each beat lands about 476 ms apart, which stretches to 1.90 s per bar.
SWIM: tempo and key at a glance
| BPM | 126 |
| Half time / double time | 63 / 252 BPM |
| Key (estimated) | A major |
| Camelot code | 11B |
| Relative key | F♯ minor (11A) |
| Tempo feel | upbeat |
| Length | 2:39 |
| Released | 2026 |
| Album | ARIRANG |
We measured this with the same analyzer you can use on this site, running on a 30-second public preview of the track. No independent BPM figure was available to compare, so treat the tempo as a measured estimate that can be a beat or two off.
Mixing SWIM with other songs
11B sits next to 12B (E major) and 10B (D major) on the Camelot wheel, with 11A (F♯ minor) as its relative minor. Those four keys blend without a clash, and pushing the pitch fader by a few percent usually closes a small tempo gap.
| Song | BPM | Key | Match |
|---|---|---|---|
| Helena · My Chemical Romance | 126 (same) | 12B · E major | up one step |
| Leave Me Alone · Michael Jackson | 123 (-3 BPM) | 11A · F♯ minor | relative minor |
| Polygon Window · Aphex Twin | 133 (+7 BPM) | 11B · A major | same key |
| RuLe · Ado | 133 (+7 BPM) | 12B · E major | up one step |
Closest tempos regardless of key: Beauty And A Beat (129), Windowlicker (123), Dirty Diana (131).
Practising SWIM with a metronome
Work up to 126 BPM in four passes: 76 BPM (60%) → 95 BPM (75%) → 113 BPM (90%) → 126 BPM (100%). Open the tap metronome and type 126 (or tap along to the record) to hear the click, or use the BPM calculator to turn 126 BPM into delay times in milliseconds. To change the tempo or key of your own copy without re-recording, use the pitch & speed changer.
Check your own copy of SWIM
Studio, live, remastered and sped-up versions of the same song often differ by several BPM. Drop your file below: the analysis runs in your browser and the file is never uploaded.
Frequently asked questions
What is the BPM of SWIM by BTS?
SWIM runs at 126 BPM. If you prefer to count in half time that is 63 BPM, in double time 252 BPM. One beat lasts about 476 ms. This figure is measured from a 30-second preview, so it may be off by a beat or two.
What key is SWIM in?
We detect A major for SWIM, which is 11B on the Camelot wheel. Its relative key is F♯ minor (11A), and the next-door keys are 12B and 10B. Key estimates from a short preview can be off, especially on songs that change key.
What metronome speed should I use to practice SWIM?
To learn SWIM, start at 76 BPM (60% speed), move to 95, then 113, and finish at the full 126 BPM once every bar is clean. Half-time counting at 63 BPM also works for the slowest passes.
Which songs mix well with SWIM?
In our dataset, Helena by My Chemical Romance (126 BPM, E major); Leave Me Alone by Michael Jackson (123 BPM, F♯ minor); Polygon Window by Aphex Twin (133 BPM, A major) sit in a compatible key within 7 BPM. Beyond these, any track in 11B, 12B, 10B, 11A blends harmonically.
More songs: all measured songs · BPM & key finder · song key finder · how to find the BPM of a song