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Beat Division Calculator


Beat Division Calculator

A tool to convert musical tempo in beats-per-minute (bpm) to a beat division in milliseconds (ms).



Common Bpm Values


Bpm 1/4 1/8 1/16 1/32
80 750 ms 375 ms 187.5 ms 93.75 ms
81 740.74 ms 370.37 ms 185.19 ms 92.59 ms
82 731.71 ms 365.85 ms 182.93 ms 91.46 ms
83 722.89 ms 361.45 ms 180.72 ms 90.36 ms
84 714.29 ms 357.14 ms 178.57 ms 89.29 ms
85 705.88 ms 352.94 ms 176.47 ms 88.24 ms
86 697.67 ms 348.84 ms 174.42 ms 87.21 ms
87 689.66 ms 344.83 ms 172.41 ms 86.21 ms
88 681.82 ms 340.91 ms 170.45 ms 85.23 ms
89 674.16 ms 337.08 ms 168.54 ms 84.27 ms
90 666.67 ms 333.33 ms 166.67 ms 83.33 ms
91 659.34 ms 329.67 ms 164.84 ms 82.42 ms
92 652.17 ms 326.09 ms 163.04 ms 81.52 ms
93 645.16 ms 322.58 ms 161.29 ms 80.65 ms
94 638.3 ms 319.15 ms 159.57 ms 79.79 ms
95 631.58 ms 315.79 ms 157.89 ms 78.95 ms
96 625 ms 312.5 ms 156.25 ms 78.13 ms
97 618.56 ms 309.28 ms 154.64 ms 77.32 ms
98 612.24 ms 306.12 ms 153.06 ms 76.53 ms
99 606.06 ms 303.03 ms 151.52 ms 75.76 ms
100 600 ms 300 ms 150 ms 75 ms
101 594.06 ms 297.03 ms 148.51 ms 74.26 ms
102 588.24 ms 294.12 ms 147.06 ms 73.53 ms
103 582.52 ms 291.26 ms 145.63 ms 72.82 ms
104 576.92 ms 288.46 ms 144.23 ms 72.12 ms
105 571.43 ms 285.71 ms 142.86 ms 71.43 ms
106 566.04 ms 283.02 ms 141.51 ms 70.75 ms
107 560.75 ms 280.37 ms 140.19 ms 70.09 ms
108 555.56 ms 277.78 ms 138.89 ms 69.44 ms
109 550.46 ms 275.23 ms 137.61 ms 68.81 ms
110 545.45 ms 272.73 ms 136.36 ms 68.18 ms
111 540.54 ms 270.27 ms 135.14 ms 67.57 ms
112 535.71 ms 267.86 ms 133.93 ms 66.96 ms
113 530.97 ms 265.49 ms 132.74 ms 66.37 ms
114 526.32 ms 263.16 ms 131.58 ms 65.79 ms
115 521.74 ms 260.87 ms 130.43 ms 65.22 ms
116 517.24 ms 258.62 ms 129.31 ms 64.66 ms
117 512.82 ms 256.41 ms 128.21 ms 64.1 ms
118 508.47 ms 254.24 ms 127.12 ms 63.56 ms
119 504.2 ms 252.1 ms 126.05 ms 63.03 ms
120 500 ms 250 ms 125 ms 62.5 ms
121 495.87 ms 247.93 ms 123.97 ms 61.98 ms
122 491.8 ms 245.9 ms 122.95 ms 61.48 ms
123 487.8 ms 243.9 ms 121.95 ms 60.98 ms
124 483.87 ms 241.94 ms 120.97 ms 60.48 ms
125 480 ms 240 ms 120 ms 60 ms
126 476.19 ms 238.1 ms 119.05 ms 59.52 ms
127 472.44 ms 236.22 ms 118.11 ms 59.06 ms
128 468.75 ms 234.38 ms 117.19 ms 58.59 ms
129 465.12 ms 232.56 ms 116.28 ms 58.14 ms
130 461.54 ms 230.77 ms 115.38 ms 57.69 ms
131 458.02 ms 229.01 ms 114.5 ms 57.25 ms
132 454.55 ms 227.27 ms 113.64 ms 56.82 ms
133 451.13 ms 225.56 ms 112.78 ms 56.39 ms
134 447.76 ms 223.88 ms 111.94 ms 55.97 ms
135 444.44 ms 222.22 ms 111.11 ms 55.56 ms
136 441.18 ms 220.59 ms 110.29 ms 55.15 ms
137 437.96 ms 218.98 ms 109.49 ms 54.74 ms
138 434.78 ms 217.39 ms 108.7 ms 54.35 ms
139 431.65 ms 215.83 ms 107.91 ms 53.96 ms
140 428.57 ms 214.29 ms 107.14 ms 53.57 ms
141 425.53 ms 212.77 ms 106.38 ms 53.19 ms
142 422.54 ms 211.27 ms 105.63 ms 52.82 ms
143 419.58 ms 209.79 ms 104.9 ms 52.45 ms
144 416.67 ms 208.33 ms 104.17 ms 52.08 ms
145 413.79 ms 206.9 ms 103.45 ms 51.72 ms
146 410.96 ms 205.48 ms 102.74 ms 51.37 ms
147 408.16 ms 204.08 ms 102.04 ms 51.02 ms
148 405.41 ms 202.7 ms 101.35 ms 50.68 ms
149 402.68 ms 201.34 ms 100.67 ms 50.34 ms
150 400 ms 200 ms 100 ms 50 ms
151 397.35 ms 198.68 ms 99.34 ms 49.67 ms
152 394.74 ms 197.37 ms 98.68 ms 49.34 ms
153 392.16 ms 196.08 ms 98.04 ms 49.02 ms
154 389.61 ms 194.81 ms 97.4 ms 48.7 ms
155 387.1 ms 193.55 ms 96.77 ms 48.39 ms
156 384.62 ms 192.31 ms 96.15 ms 48.08 ms
157 382.17 ms 191.08 ms 95.54 ms 47.77 ms
158 379.75 ms 189.87 ms 94.94 ms 47.47 ms
159 377.36 ms 188.68 ms 94.34 ms 47.17 ms
160 375 ms 187.5 ms 93.75 ms 46.88 ms

Calculating BPM (beats-per-minute) to milliseconds (ms).


Convert BPM to MS

Converting from BPM to MS can be extremely useful for a range of uses, such as timing device parameter values to your project tempo (such as reverb & compression settings), to more complex uses, such as creating interesting logarithmic  delays, drum rolls and polyrhythms which appear to momentarily slip out of time but can then naturally fall back into sync.

Whatever your use is for converting between Beats per minute and Milliseconds, we have made it very easy for you to do, either using our BPM to Ms app on this page or by simply using the formula…

BPM to MS Formula:

The formula is 60,000 / Bpm = Ms

We can break this down as 60’000 (the number of milliseconds in a minute). divided by the Bpm (the number of beats we have in our minute). 

This will give us the number of beats we have in a quarter note. From here we can then figure out the rest of the beat division values (or just look them up in our handy table which also gives dotted and triplet divisions).

Converting BPM to MS:

Say you have a song that is 128 Beats per Minute: 60,000 / 128 = 468.75 ms per Beat.

There are 4 beats in a bar for our 4×4 time signature, so:

One bar = 478.8ms * 4 = 1875 ms 

then we simply multiply or divide for any other note values we need, so for converting 128 BPM (beats per minute) to milliseconds, we would have as follows:

Whole Note = 1875 ms
Half note     = 937.5 ms
1/4 note      = 468.75 ms
1/8 note      = 234.38 ms
1/16 note    = 117.19 ms
1/32 note    = 58.59 ms
1/64 note    = 29.3 ms
1/128 note  = 14.65 ms

Triplets & Dotted Note Calculation

We can also calculate the dotted and triplet values for any BPM as well. This can either be done by inputting your projects BPM into our conversion tables, or by using the formulas below:

The Formula for Triplet Beat Divisions

(60,000 / Bpm)*0.667 = Triplet Ms

The Formula for Dotted Beat Divisions

(60,000 / Bpm)*1.5  = Dotted Ms