BPM beats-per-minute calculator

Give tempo and time signature

BPM parameters

  • Beats-per-minute: 125 BPM
  • Beats-per-second: 2.0833 Hz
  • Length of 1 beat: 0.48 second = 480 msec
  • Length of 1 bar (4 beats): 1.92 second
  • Loop & song length

    These are the lengths of multiple beats (handy for calculating loop lengths, LFO)
    1 beat =480ms =2.08Hz
    2 beats =960ms =1.04Hz
    3 beats =1.44sec =0.69Hz
    4 beats =1.92sec =0.52Hz
    6 beats =2.88sec =0.35Hz
    7 beats =3.36sec =0.3Hz
    8 beats =3.84sec =0.26Hz
    10 beats =4.8sec =0.21Hz
    12 beats =5.76sec =0.17Hz
    16 beats =7.68sec =0.13Hz
    24 beats =11.52sec =0.09Hz
    32 beats =15.36sec =0.07Hz
    These are the lengths of multiple bars/measures (handy for estimating the length of a song).
    2 bars =3.8 sec
    4 bars =7.7 sec
    8 bars =15.4 sec
    16 bars =30.7 sec
    24 bars =46.1 sec
    32 bars =61.4 sec
    40 bars =76.8 sec
    48 bars =92.2 sec
    60 bars =115.2 sec
    80 bars =153.6 sec
    100 bars =192 sec
    120 bars =230.4 sec

    Fractions → millisecs

    These are some common fractions (handy for setting delays and modulation parameters)
    1/2
    240 ms
    4.17 Hz
    2/2
    480 ms
    2.08 Hz
    3/2
    720 ms
    1.39 Hz
    4/2
    960 ms
    1.04 Hz
    6/2
    1440 ms
    0.69 Hz
    7/2
    1680 ms
    0.6 Hz
    8/2
    1920 ms
    0.52 Hz
    10/2
    2400 ms
    0.42 Hz
    12/2
    2880 ms
    0.35 Hz
    16/2
    3840 ms
    0.26 Hz
    24/2
    5760 ms
    0.17 Hz
    32/2
    7680 ms
    0.13 Hz
    1/3
    160 ms
    6.25 Hz
    2/3
    320 ms
    3.13 Hz
    3/3
    480 ms
    2.08 Hz
    4/3
    640 ms
    1.56 Hz
    6/3
    960 ms
    1.04 Hz
    7/3
    1120 ms
    0.89 Hz
    8/3
    1280 ms
    0.78 Hz
    10/3
    1600 ms
    0.63 Hz
    12/3
    1920 ms
    0.52 Hz
    16/3
    2560 ms
    0.39 Hz
    24/3
    3840 ms
    0.26 Hz
    32/3
    5120 ms
    0.2 Hz
    1/4
    120 ms
    8.33 Hz
    2/4
    240 ms
    4.17 Hz
    3/4
    360 ms
    2.78 Hz
    4/4
    480 ms
    2.08 Hz
    6/4
    720 ms
    1.39 Hz
    7/4
    840 ms
    1.19 Hz
    8/4
    960 ms
    1.04 Hz
    10/4
    1200 ms
    0.83 Hz
    12/4
    1440 ms
    0.69 Hz
    16/4
    1920 ms
    0.52 Hz
    24/4
    2880 ms
    0.35 Hz
    32/4
    3840 ms
    0.26 Hz
    1/6
    80 ms
    12.5 Hz
    2/6
    160 ms
    6.25 Hz
    3/6
    240 ms
    4.17 Hz
    4/6
    320 ms
    3.13 Hz
    6/6
    480 ms
    2.08 Hz
    7/6
    560 ms
    1.79 Hz
    8/6
    640 ms
    1.56 Hz
    10/6
    800 ms
    1.25 Hz
    12/6
    960 ms
    1.04 Hz
    16/6
    1280 ms
    0.78 Hz
    24/6
    1920 ms
    0.52 Hz
    32/6
    2560 ms
    0.39 Hz
    1/7
    68.6 ms
    14.58 Hz
    2/7
    137 ms
    7.29 Hz
    3/7
    206 ms
    4.86 Hz
    4/7
    274 ms
    3.65 Hz
    6/7
    411 ms
    2.43 Hz
    7/7
    480 ms
    2.08 Hz
    8/7
    549 ms
    1.82 Hz
    10/7
    686 ms
    1.46 Hz
    12/7
    823 ms
    1.22 Hz
    16/7
    1097 ms
    0.91 Hz
    24/7
    1646 ms
    0.61 Hz
    32/7
    2194 ms
    0.46 Hz
    1/8
    60 ms
    16.67 Hz
    2/8
    120 ms
    8.33 Hz
    3/8
    180 ms
    5.56 Hz
    4/8
    240 ms
    4.17 Hz
    6/8
    360 ms
    2.78 Hz
    7/8
    420 ms
    2.38 Hz
    8/8
    480 ms
    2.08 Hz
    10/8
    600 ms
    1.67 Hz
    12/8
    720 ms
    1.39 Hz
    16/8
    960 ms
    1.04 Hz
    24/8
    1440 ms
    0.69 Hz
    32/8
    1920 ms
    0.52 Hz
    1/10
    48 ms
    20.83 Hz
    2/10
    96 ms
    10.42 Hz
    3/10
    144 ms
    6.94 Hz
    4/10
    192 ms
    5.21 Hz
    6/10
    288 ms
    3.47 Hz
    7/10
    336 ms
    2.98 Hz
    8/10
    384 ms
    2.6 Hz
    10/10
    480 ms
    2.08 Hz
    12/10
    576 ms
    1.74 Hz
    16/10
    768 ms
    1.3 Hz
    24/10
    1152 ms
    0.87 Hz
    32/10
    1536 ms
    0.65 Hz
    1/12
    40 ms
    25 Hz
    2/12
    80 ms
    12.5 Hz
    3/12
    120 ms
    8.33 Hz
    4/12
    160 ms
    6.25 Hz
    6/12
    240 ms
    4.17 Hz
    7/12
    280 ms
    3.57 Hz
    8/12
    320 ms
    3.13 Hz
    10/12
    400 ms
    2.5 Hz
    12/12
    480 ms
    2.08 Hz
    16/12
    640 ms
    1.56 Hz
    24/12
    960 ms
    1.04 Hz
    32/12
    1280 ms
    0.78 Hz
    1/16
    30 ms
    33.33 Hz
    2/16
    60 ms
    16.67 Hz
    3/16
    90 ms
    11.11 Hz
    4/16
    120 ms
    8.33 Hz
    6/16
    180 ms
    5.56 Hz
    7/16
    210 ms
    4.76 Hz
    8/16
    240 ms
    4.17 Hz
    10/16
    300 ms
    3.33 Hz
    12/16
    360 ms
    2.78 Hz
    16/16
    480 ms
    2.08 Hz
    24/16
    720 ms
    1.39 Hz
    32/16
    960 ms
    1.04 Hz
    1/24
    20 ms
    50 Hz
    2/24
    40 ms
    25 Hz
    3/24
    60 ms
    16.67 Hz
    4/24
    80 ms
    12.5 Hz
    6/24
    120 ms
    8.33 Hz
    7/24
    140 ms
    7.14 Hz
    8/24
    160 ms
    6.25 Hz
    10/24
    200 ms
    5 Hz
    12/24
    240 ms
    4.17 Hz
    16/24
    320 ms
    3.13 Hz
    24/24
    480 ms
    2.08 Hz
    32/24
    640 ms
    1.56 Hz
    1/32
    15 ms
    66.67 Hz
    2/32
    30 ms
    33.33 Hz
    3/32
    45 ms
    22.22 Hz
    4/32
    60 ms
    16.67 Hz
    6/32
    90 ms
    11.11 Hz
    7/32
    105 ms
    9.52 Hz
    8/32
    120 ms
    8.33 Hz
    10/32
    150 ms
    6.67 Hz
    12/32
    180 ms
    5.56 Hz
    16/32
    240 ms
    4.17 Hz
    24/32
    360 ms
    2.78 Hz
    32/32
    480 ms
    2.08 Hz

    millisecs → fractions

    These are some common fractions (handy for setting delays and modulation parameters)
    millisecs% of beatHertz (/sec)fraction
    30 msec6.3% 33.33 Hz1/16
    40 msec8.3% 25 Hz1/12 (triplet ♪♪♪)
    60 msec13% 16.67 Hz1/8
    80 msec17% 12.5 Hz1/6 (triplet ♪♪♪)
    90 msec19% 11.11 Hz3/16 (dotted 1/8 ♪.)
    96 msec20% 10.42 Hz1/5
    120 msec25% 8.33 Hz1/4
    150 msec31% 6.67 Hz5/16
    160 msec33% 6.25 Hz1/3 (triplet ♪♪♪)
    180 msec38% 5.56 Hz3/8 (dotted 1/4 ♪.)
    192 msec40% 5.21 Hz2/5
    200 msec42% 5 Hz5/12 (triplet ♪♪♪)
    240 msec50% 4.17 Hz1/2
    288 msec60% 3.47 Hz3/5
    300 msec63% 3.33 Hz5/8
    320 msec67% 3.13 Hz2/3 (triplet ♪♪♪)
    360 msec75% 2.78 Hz3/4 (dotted 1/2 ♪.)
    384 msec80% 2.6 Hz4/5
    400 msec83% 2.5 Hz5/6 (triplet ♪♪♪)
    480 msec100% 2.08 Hz (== 1 beat ♩)
    576 msec120% 1.74 Hz6/5
    600 msec125% 1.67 Hz5/4
    640 msec133% 1.56 Hz4/3 (triplet ♪♪♪)
    720 msec150% 1.39 Hz3/2 (dotted 1/1 ♪.)
    768 msec160% 1.3 Hz8/5
    800 msec167% 1.25 Hz5/3 (triplet ♪♪♪)
    960 msec200% 1.04 Hz2/1
    1200 msec250% 0.833 Hz5/2
    1280 msec267% 0.781 Hz8/3 (triplet ♪♪♪)
    1440 msec300% 0.694 Hz3/1
    1920 msec400% 0.521 Hz4/1
    2400 msec500% 0.417 Hz5/1
    2880 msec600% 0.347 Hz6/1
    3840 msec800% 0.26 Hz8/1

    How to use this page

  • If you have a 135 BPM song and you want a phase modulation of 4 beats: that is 1.778 sec (BEATS)
  • If you have a 98 BPM song in a measure of 3/4, and you want to know how long 32 bars is: 58.78 sec (BARS)
  • If you have a 128 BPM song and you want an audio delay of 2/3 of a beat: this is 313 ms (FRACTIONS)
  • Musical genres

    Music tools

    Beats-per-minute
    Convert BPM to Hz, bar length, fractions
    Audio delay
    Calculate audio delay length in msec
    Music Frequency
    Convert pitch to musical note and wavelength
    Song length
    Calculate song length from BPM
    Music Scale
    Generate scales with frequencies
    Tap your tempo
    Tap to find the BPM of a song or a heartbeat