Kilohertz to hertz – convert kHz to Hz

Convert kilohertz to hertz (kHz to Hz) for detailed audio work, oscilloscopes, RF tuning and digital electronics. This page opens the main frequency converter with kHz → Hz pre-selected.

Open the interactive kHz → Hz converter:

Use main converter (kHz → Hz) or switch to Hz → kHz

The frequency category on the homepage lets you move between Hz, kHz, MHz, GHz and rpm using one consistent engine.

Quick reference: kHz to Hz

1 kHz = 1,000 Hz. Multiply kilohertz by 1,000 to get hertz.

Kilohertz (kHz) Hertz (Hz)
1 kHz1,000 Hz
5 kHz5,000 Hz
10 kHz10,000 Hz
50 kHz50,000 Hz
100 kHz100,000 Hz

Where do kHz and Hz appear?

kHz is common in audio sampling, communication systems, ultrasound and switching power supplies.

Hz is the base unit for expressing those frequencies in fundamental SI form.

Why convert kHz to Hz?

kHz to Hz FAQ

Is the conversion always exactly ×1,000?
Yes. 1 kHz is defined as exactly 1,000 Hz.
Is 20 kHz the top of human hearing?
Often quoted, yes – but real hearing limits vary by person and age.
How do I go from kHz to MHz?
Use the converter with kHz → MHz, or divide kHz by 1,000.

More frequency converters

Updated: January 2025.