How many hertz are in one kilohertz?

Exactly 1,000 hertz equal one kilohertz (1 kHz = 1,000 Hz). The "kilo" prefix in the SI system always means a factor of 1,000.

What is the formula to convert kHz to Hz?

Multiply the kilohertz value by 1,000: Hz = kHz × 1,000. For example, 5 kHz = 5,000 Hz.

What frequency range is typically measured in kilohertz?

Kilohertz spans roughly 1 kHz to 1,000 kHz (1 MHz). AM radio (530–1,700 kHz) and the upper range of human hearing (up to ~20 kHz) are common examples.

Can I convert decimal kHz values?

Yes. The converter accepts any positive number including decimals. For example, 0.5005 kHz converts to 500.5 Hz.

How do I convert Hz back to kHz?

Divide by 1,000: kHz = Hz ÷ 1,000. Use the swap button on this tool to flip the conversion direction.

Kilohertz to Hertz Converter

Enter a frequency in kilohertz (kHz) and instantly get the equivalent value in hertz (Hz).

Frequency Input

Kilohertz (kHz)

kHz

Hertz (Hz)

Result

Enter a value to see the result

Common Conversions

Kilohertz (kHz)	Hertz (Hz)
0.1 kHz	100 Hz
0.5 kHz	500 Hz
1 kHz	1,000 Hz
5 kHz	5,000 Hz
10 kHz	10,000 Hz
20 kHz	20,000 Hz
100 kHz	100,000 Hz
1,000 kHz	1,000,000 Hz

Click any row to load that value into the converter.

Summary

Kilohertz (kHz) and hertz (Hz) are both units of frequency. One kilohertz equals exactly 1,000 hertz, so converting from kHz to Hz is a simple multiplication by 1,000. This tool performs that calculation instantly for any value you enter, with the formula shown alongside the result.

How it works

Enter a frequency value in the kilohertz (kHz) field.
The converter multiplies the value by 1,000 to get hertz.
The result appears immediately with up to 6 significant digits.
Click the swap button to reverse the direction (Hz → kHz).
Use the copy button to copy the result to your clipboard.

Use cases

Convert AM radio frequencies (e.g. 1080 kHz) into hertz for signal processing.
Translate audio crossover frequencies from kHz to Hz for equalizer configuration.
Convert oscillator or crystal frequencies listed in kHz to Hz for firmware constants.
Verify unit conversions when reading electronics datasheets.
Convert sensor sampling rates specified in kHz to Hz for calculation.

Frequently Asked Questions

Last updated: 2026-06-19 · Reviewed by Nham Vu