Timing / Free browser tool

Note Duration Calculator

Translate a written note denominator into milliseconds.

Your result
Duration (ms)
125

How this works

ms = 240000 / (BPM × denominator)

Use the result carefully

This assumes quarter-note BPM even in compound meters.

Calculations run on your device. No audio uploads, account, or email required. Numerical outputs are rounded for display; these tools do not analyze a recording unless explicitly stated.

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