Beats-per-minute calculator

Give tempo and time signature

BPM parameters

  • Beats-per-minute: 120 BPM
  • Beats-per-second: 2 Hz
  • Length of 1 beat: 0.5 second = 500 msec
  • Length of 1 bar (4 beats): 2 second
  • Loop & song length

    These are the lengths of multiple beats (handy for calculating loop lengths, LFO)
    1 beat =500ms =2Hz
    2 beats =1000ms =1Hz
    3 beats =1.5sec =0.67Hz
    4 beats =2sec =0.5Hz
    6 beats =3sec =0.33Hz
    7 beats =3.5sec =0.29Hz
    8 beats =4sec =0.25Hz
    10 beats =5sec =0.2Hz
    12 beats =6sec =0.17Hz
    16 beats =8sec =0.13Hz
    24 beats =12sec =0.08Hz
    32 beats =16sec =0.06Hz
    These are the lengths of multiple bars/measures (handy for estimating the length of a song).
    2 bars =4 sec
    4 bars =8 sec
    8 bars =16 sec
    16 bars =32 sec
    24 bars =48 sec
    32 bars =64 sec
    40 bars =80 sec
    48 bars =96 sec
    60 bars =120 sec
    80 bars =160 sec
    100 bars =200 sec
    120 bars =240 sec

    Fractions → millisecs

    These are some common fractions (handy for setting delays and modulation parameters)
    1/2
    250 ms
    4 Hz
    2/2
    500 ms
    2 Hz
    3/2
    750 ms
    1.33 Hz
    4/2
    1000 ms
    1 Hz
    6/2
    1500 ms
    0.67 Hz
    7/2
    1750 ms
    0.57 Hz
    8/2
    2000 ms
    0.5 Hz
    10/2
    2500 ms
    0.4 Hz
    12/2
    3000 ms
    0.33 Hz
    16/2
    4000 ms
    0.25 Hz
    24/2
    6000 ms
    0.17 Hz
    32/2
    8000 ms
    0.13 Hz
    1/3
    167 ms
    6 Hz
    2/3
    333 ms
    3 Hz
    3/3
    500 ms
    2 Hz
    4/3
    667 ms
    1.5 Hz
    6/3
    1000 ms
    1 Hz
    7/3
    1167 ms
    0.86 Hz
    8/3
    1333 ms
    0.75 Hz
    10/3
    1667 ms
    0.6 Hz
    12/3
    2000 ms
    0.5 Hz
    16/3
    2667 ms
    0.37 Hz
    24/3
    4000 ms
    0.25 Hz
    32/3
    5333 ms
    0.19 Hz
    1/4
    125 ms
    8 Hz
    2/4
    250 ms
    4 Hz
    3/4
    375 ms
    2.67 Hz
    4/4
    500 ms
    2 Hz
    6/4
    750 ms
    1.33 Hz
    7/4
    875 ms
    1.14 Hz
    8/4
    1000 ms
    1 Hz
    10/4
    1250 ms
    0.8 Hz
    12/4
    1500 ms
    0.67 Hz
    16/4
    2000 ms
    0.5 Hz
    24/4
    3000 ms
    0.33 Hz
    32/4
    4000 ms
    0.25 Hz
    1/6
    83.3 ms
    12 Hz
    2/6
    167 ms
    6 Hz
    3/6
    250 ms
    4 Hz
    4/6
    333 ms
    3 Hz
    6/6
    500 ms
    2 Hz
    7/6
    583 ms
    1.71 Hz
    8/6
    667 ms
    1.5 Hz
    10/6
    833 ms
    1.2 Hz
    12/6
    1000 ms
    1 Hz
    16/6
    1333 ms
    0.75 Hz
    24/6
    2000 ms
    0.5 Hz
    32/6
    2667 ms
    0.37 Hz
    1/7
    71.4 ms
    14.01 Hz
    2/7
    143 ms
    7 Hz
    3/7
    214 ms
    4.67 Hz
    4/7
    286 ms
    3.5 Hz
    6/7
    429 ms
    2.33 Hz
    7/7
    500 ms
    2 Hz
    8/7
    571 ms
    1.75 Hz
    10/7
    714 ms
    1.4 Hz
    12/7
    857 ms
    1.17 Hz
    16/7
    1143 ms
    0.87 Hz
    24/7
    1714 ms
    0.58 Hz
    32/7
    2286 ms
    0.44 Hz
    1/8
    62.5 ms
    16 Hz
    2/8
    125 ms
    8 Hz
    3/8
    188 ms
    5.33 Hz
    4/8
    250 ms
    4 Hz
    6/8
    375 ms
    2.67 Hz
    7/8
    438 ms
    2.29 Hz
    8/8
    500 ms
    2 Hz
    10/8
    625 ms
    1.6 Hz
    12/8
    750 ms
    1.33 Hz
    16/8
    1000 ms
    1 Hz
    24/8
    1500 ms
    0.67 Hz
    32/8
    2000 ms
    0.5 Hz
    1/10
    50 ms
    20 Hz
    2/10
    100 ms
    10 Hz
    3/10
    150 ms
    6.67 Hz
    4/10
    200 ms
    5 Hz
    6/10
    300 ms
    3.33 Hz
    7/10
    350 ms
    2.86 Hz
    8/10
    400 ms
    2.5 Hz
    10/10
    500 ms
    2 Hz
    12/10
    600 ms
    1.67 Hz
    16/10
    800 ms
    1.25 Hz
    24/10
    1200 ms
    0.83 Hz
    32/10
    1600 ms
    0.63 Hz
    1/12
    41.7 ms
    23.98 Hz
    2/12
    83.3 ms
    12 Hz
    3/12
    125 ms
    8 Hz
    4/12
    167 ms
    6 Hz
    6/12
    250 ms
    4 Hz
    7/12
    292 ms
    3.43 Hz
    8/12
    333 ms
    3 Hz
    10/12
    417 ms
    2.4 Hz
    12/12
    500 ms
    2 Hz
    16/12
    667 ms
    1.5 Hz
    24/12
    1000 ms
    1 Hz
    32/12
    1333 ms
    0.75 Hz
    1/16
    31.3 ms
    31.95 Hz
    2/16
    62.5 ms
    16 Hz
    3/16
    93.8 ms
    10.66 Hz
    4/16
    125 ms
    8 Hz
    6/16
    188 ms
    5.33 Hz
    7/16
    219 ms
    4.57 Hz
    8/16
    250 ms
    4 Hz
    10/16
    313 ms
    3.2 Hz
    12/16
    375 ms
    2.67 Hz
    16/16
    500 ms
    2 Hz
    24/16
    750 ms
    1.33 Hz
    32/16
    1000 ms
    1 Hz
    1/24
    20.8 ms
    48.08 Hz
    2/24
    41.7 ms
    23.98 Hz
    3/24
    62.5 ms
    16 Hz
    4/24
    83.3 ms
    12 Hz
    6/24
    125 ms
    8 Hz
    7/24
    146 ms
    6.86 Hz
    8/24
    167 ms
    6 Hz
    10/24
    208 ms
    4.8 Hz
    12/24
    250 ms
    4 Hz
    16/24
    333 ms
    3 Hz
    24/24
    500 ms
    2 Hz
    32/24
    667 ms
    1.5 Hz
    1/32
    15.6 ms
    64.1 Hz
    2/32
    31.3 ms
    31.95 Hz
    3/32
    46.9 ms
    21.32 Hz
    4/32
    62.5 ms
    16 Hz
    6/32
    93.8 ms
    10.66 Hz
    7/32
    109 ms
    9.14 Hz
    8/32
    125 ms
    8 Hz
    10/32
    156 ms
    6.4 Hz
    12/32
    188 ms
    5.33 Hz
    16/32
    250 ms
    4 Hz
    24/32
    375 ms
    2.67 Hz
    32/32
    500 ms
    2 Hz

    millisecs → fractions

    These are some common fractions (handy for setting delays and modulation parameters)
    millisecs% of beatHertz (/sec)fraction
    31 msec6.3% 31.95 Hz1/16
    42 msec8.3% 23.98 Hz1/12 (triplet ♪♪♪)
    63 msec13% 16 Hz1/8
    83 msec17% 12 Hz1/6 (triplet ♪♪♪)
    94 msec19% 10.66 Hz3/16 (dotted 1/8 ♪.)
    100 msec20% 10 Hz1/5
    125 msec25% 8 Hz1/4
    156 msec31% 6.4 Hz5/16
    167 msec33% 6 Hz1/3 (triplet ♪♪♪)
    188 msec38% 5.33 Hz3/8 (dotted 1/4 ♪.)
    200 msec40% 5 Hz2/5
    208 msec42% 4.8 Hz5/12 (triplet ♪♪♪)
    250 msec50% 4 Hz1/2
    300 msec60% 3.33 Hz3/5
    313 msec63% 3.2 Hz5/8
    333 msec67% 3 Hz2/3 (triplet ♪♪♪)
    375 msec75% 2.67 Hz3/4 (dotted 1/2 ♪.)
    400 msec80% 2.5 Hz4/5
    417 msec83% 2.4 Hz5/6 (triplet ♪♪♪)
    500 msec100% 2 Hz (== 1 beat ♩)
    600 msec120% 1.67 Hz6/5
    625 msec125% 1.6 Hz5/4
    667 msec133% 1.5 Hz4/3 (triplet ♪♪♪)
    750 msec150% 1.33 Hz3/2 (dotted 1/1 ♪.)
    800 msec160% 1.25 Hz8/5
    833 msec167% 1.2 Hz5/3 (triplet ♪♪♪)
    1000 msec200% 1 Hz2/1
    1250 msec250% 0.8 Hz5/2
    1333 msec267% 0.75 Hz8/3 (triplet ♪♪♪)
    1500 msec300% 0.667 Hz3/1
    2000 msec400% 0.5 Hz4/1
    2500 msec500% 0.4 Hz5/1
    3000 msec600% 0.333 Hz6/1
    4000 msec800% 0.25 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 calculators & converters

    Beats-per-minute
    Convert BPM to Hz, bar length, fractions
    Audio delay
    Calculate audio delay length in msec
    Music Frequency
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    Song length
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    Music Scale
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    Tap your tempo
    Tap to find the BPM of a song or a heartbeat