Calculator
Choose the beat unit explicitly, convert straight, dotted and triplet note durations to milliseconds and Hz, or calculate BPM from a delay.
Results update as you type · Prefilled values are a worked example
Reverse calculation uses the same beat unit, note and modifier. Hz is event repetition frequency, not pitch.
| Note | Straight | Dotted | Triplet |
|---|---|---|---|
| 1/1 | 2,000 | 3,000 | 1,333.333 |
| 1/2 | 1,000 | 1,500 | 666.667 |
| 1/4 | 500 | 750 | 333.333 |
| 1/8 | 250 | 375 | 166.667 |
| 1/16 | 125 | 187.5 | 83.333 |
| 1/32 | 62.5 | 93.75 | 41.667 |
| 1/64 | 31.25 | 46.875 | 20.833 |
Time signature alone does not specify the BPM beat unit. Check the score or metronome. Swing, tempo changes and device latency are excluded.
One beat in milliseconds = 60,000 ÷ BPM. Convert the selected beat unit to a quarter-note duration, then use note ms = quarter-note ms × 4 ÷ note denominator. A single dot multiplies duration by 1.5. A 3:2 triplet multiplies it by 2/3, not 1/3.
The reverse calculation uses the same beat unit, note and modifier; another interpretation gives another BPM. The Hz column is event repetition frequency, 1,000 ÷ ms, not musical pitch. Time signature alone does not specify the BPM beat unit. This covers fixed tempo, single dots and 3:2 triplets, not swing, tempo changes, performance deviations or device latency. No audio is analyzed.
Analytics is off. All calculator features are available.
Only page views and successful actions are recorded, never calculator values.How data is handled