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CPS calculator icon showing a frequency waveform

CPS Calculator

CPS Calculator

Convert cycles per second (Hz) to other frequency units

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CPS (cycles per second) is an older name for Hertz (Hz) — they are exactly the same unit, just different eras of terminology. 1 cps = 1 Hz.

For rotational speed, 1 Hz = 60 rpm (revolutions per minute), since there are 60 seconds in a minute. For angular frequency, 1 Hz = 2π rad/s (≈6.2832 rad/s), because one full cycle covers 2π radians.

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Free CPS (Cycles Per Second) Calculator tool by calculator24x7.com.

CPS is the older term for what’s now universally called Hertz, this calculator converts between CPS/Hz and related frequency units like RPM and angular frequency.

How to use this CPS calculator

  1. Enter a value and select your From unit.
  2. Select your To unit.
  3. Read the converted result instantly, or tap Swap Units to reverse the direction.

What this calculator does

CPS (cycles per second) is an older name for Hertz (Hz), they are exactly the same unit, just different eras of terminology. 1 cps equals 1 Hz. For rotational speed, 1 Hz equals 60 rpm (revolutions per minute), since there are 60 seconds in a minute. For angular frequency, 1 Hz equals 2π rad/s (approximately 6.2832 rad/s), because one full cycle covers 2π radians.

1 cps = 1 Hz = 60 rpm = 2π rad/s (≈6.2832 rad/s)

Why “cps” fell out of use

Hertz was adopted as the SI unit for frequency in 1960, honoring physicist Heinrich Hertz, and gradually replaced the older, more descriptive “cycles per second” terminology in standard usage. You’ll still occasionally encounter “cps” in older technical documents, vintage electronics manuals, or specific legacy contexts, which is why having a direct conversion tool remains useful.

Frequently asked questions

Is CPS the same as Hz?

Yes, exactly the same unit, “cycles per second” (CPS) is simply the older terminology that Hertz (Hz) replaced as the standardized SI unit for frequency.

How do I convert Hz to RPM?

Multiply by 60, since 1 Hz (one cycle per second) equals 60 cycles per minute, which is 60 RPM for rotational speed.