Frequency converter

Convert hertz, kilohertz, megahertz, rpm and bpm.

Conversion

This tool lets you convert frequency and read the matching period when relevant.

Result

Approximation

Enter a frequency value to convert.

Quick explanation

Enter a positive or zero frequency, then choose the source and target units.

The tool also displays the corresponding period when the frequency is greater than zero.

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Convert speed

For distance traveled per unit of time, use the speed converter.

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Additional information

Frequency and period

Frequency indicates how many cycles occur per second. Period is the duration of one cycle: it is calculated with period = 1 / frequency.

Hz, rpm and bpm

Hertz is the reference unit. Revolutions per minute are useful for motors and rotation, while bpm is mostly used for tempo or heart rate.

What happens at 0 Hz?

At 0 Hz, no cycle is repeating. The period is therefore undefined, even though frequency conversion to another unit can still be displayed.

Privacy

Calculations are performed in the browser. Entered values are not sent to the server.

Limits and reuse

AppErgo tools are provided free of charge for practical and informational purposes. Although care is taken in their design, a result may be incomplete, unexpected or incorrect. Before relying on a result for any important use, check it using an appropriate method.

To report a bug in the tool, you can use the dedicated bug report form.

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