66 BPM in numbers
66 BPM is a mark on every mechanical metronome, between 63 and 69. Depending on the chart, it is the top of Larghetto or the start of Adagio: slow, and at ease. At 66 beats per minute, one beat lasts 909 ms (0.91 s).
| Note or bar | Length at 66 BPM |
|---|---|
| One beat (quarter note) | 909 ms |
| Eighth note | 455 ms |
| Eighth-note triplet | 303 ms |
| Sixteenth note | 227 ms |
| Bar of 3/4 | 2.73 s |
| Bar of 4/4 | 3.64 s |
| Bars of 4/4 per minute | 16.5 |
Tempo marking: Adagio
66 BPM falls in the Adagio range, “slow, at ease”, which this metronome places at 66 to 75 BPM. Reference charts do not all agree, so treat tempo words as a feel rather than a fixed number. 66 is one of the numbers printed on a mechanical (Maelzel) metronome.
What 66 BPM is used for
Many lullabies and slow ballads feel natural around 66. For practice, it is a good first step above 60 when a piece starts to feel comfortable but is not yet steady at a faster tempo.
Walking, running and CPR at 66
CPR: chest compressions need 100 to 120 per minute (American Heart Association), so 66 BPM is too slow for that. Use the 110 BPM metronome to practice.
Walking: below about 100 steps per minute, walking is usually light intensity for adults, according to the CADENCE-Adults study.
Practice ideas at 66 BPM
At slow tempos the gaps feel long and most people rush. Turn on Subdivide for a soft click between beats, and count the subdivisions out loud. Press the space bar to start or stop, and use the − and + buttons to move one BPM at a time. Other tempos: 60 BPM, 70 BPM, or the full online metronome. To time a practice session, pair it with a timer.