Hertz to RPM Converter

Enter a frequency in hertz and instantly get the equivalent rotational speed in RPM (RPM = Hz × 60).

Convert Hz ↔ RPM

Hz
RPM

Formula

RPM = Hz × 60

One hertz equals one cycle per second. Multiplying by 60 converts cycles per second to cycles per minute.

Common Reference Values

Summary

Enter a frequency in hertz and instantly get the equivalent rotational speed in RPM (RPM = Hz × 60).

How it works

  1. Enter a frequency value in the Hz field.
  2. The converter multiplies your value by 60 to get RPM.
  3. The result updates instantly as you type.
  4. Use the reverse field to convert RPM back to Hz.
  5. Click any preset button to load a common reference value.
  6. Copy the result with one click.

Use cases

  • Convert AC line frequency (50 Hz or 60 Hz) to synchronous motor speed.
  • Calculate shaft RPM from a VFD output frequency.
  • Verify pump or fan speed from measured vibration frequency.
  • Convert audio frequency to turntable speed for audio engineering.
  • Match rotating machinery frequency to resonance thresholds.
  • Compute hard drive platter speed from measured Hz signal.

Frequently Asked Questions

Last updated: 2026-07-23 · Reviewed by Nham Vu