Note Value Calculator
Calculate the duration of a note value at a given tempo.
Quick answer: enter your details below and click Calculate Note Length — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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Enter your details below.
How to use
- Enter your values in the fields provided.
- Click Calculate Note Length.
- Read the result and adjust an input if you want a different outcome.
About this tool
Rhythm lives in durations, and durations change with tempo. Enter a tempo and a note value and this tool gives the note's length in milliseconds and in beats, so notation turns into timing you can use.
Frequently asked questions
What do I enter to get a result?
Fill in every field with your own numbers or choices, then run the tool. Empty number fields count as zero, so check them before you trust the output.
Can I reuse this result elsewhere?
Yes. The result is calculated in your browser from the values you entered, so you can copy the numbers into your own notes or plan.