Convert Kilohertz to Hertz
Instantly convert Kilohertz (kHz) to Hertz (Hz) with our free online calculator.
Formula: kHz to Hz — multiply by 1000
Reference Table
| Kilohertz (kHz) | Hertz (Hz) |
|---|---|
| 1 | 1000 |
| 5 | 5000 |
| 10 | 10000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
How to Convert Kilohertz to Hertz
Formula
To convert Kilohertz (kHz) to Hertz (Hz): multiply by 1000
Step-by-Step
- Start with your value in Kilohertz (kHz).
- Multiply by 1000 to perform the conversion.
- The result is your value expressed in Hertz (Hz).
Conversion Factor
1 kHz = 1000 Hz
Reverse Factor
1 Hz = 0.001 kHz
Worked Example
Convert 25 Kilohertz to Hertz: 25 kHz = 25000 Hz
About Kilohertz (kHz)
A frequency unit equal to exactly 1,000 Hz. kHz is the native band for many specific technology applications: AM (Amplitude Modulation) commercial radio broadcasting per FCC Title 47 / ITU Region 1/2/3 — Americas medium-wave broadcast band 530-1,700 kHz; CD-audio sampling rate exactly 44.1 kHz per Philips/Sony 'Red Book' specification + ANSI/SCTE standards; professional-video and film-audio sampling 48 kHz / 96 kHz / 192 kHz per AES3 / EBU 3250 / SMPTE 296 audio-engineering standards; ultrasonic medical-imaging probes 1-15 MHz with low-frequency sub-MHz transcranial Doppler at 1-2 MHz; sonar systems (low-frequency surface-ship hull-mounted 1-15 kHz, side-scan 100-500 kHz, fishfinders 50-200 kHz per NMEA 2000 / IMO standards); low-frequency RF applications (submarine VLF communication 3-30 kHz, RFID 125-134 kHz LF tags); and AM-radio carrier-frequency identification (1010 kHz, 1320 kHz, etc.). Audio engineers and broadcast-station designers work in kHz daily.
About Hertz (Hz)
The SI unit of frequency (ISO 80000-3 §3-13) equal to exactly one cycle per second (1 Hz = 1 s⁻¹). Named after German physicist Heinrich Rudolf Hertz, whose 1887-1888 experiments at Karlsruhe first demonstrated and measured electromagnetic waves and confirmed Maxwell's theory. Hz is the universal unit for periodic phenomena across physics, engineering, and consumer electronics: computer display refresh rates (60 Hz standard, 120/144/240 Hz gaming, 480 Hz high-end OLED esports monitors), residential and commercial AC mains power frequency per IEC 60038 (50 Hz universal except North America / Brazil / Liberia / Saudi Arabia at 60 Hz; aircraft 400 Hz per DO-160 to reduce transformer size and weight; ships often 400 Hz or 60 Hz), heart rate (resting ~1 Hz / 60 bpm), neuron firing rate (1-100 Hz peak), sound-wave pitch (human hearing 20 Hz - 20 kHz per ISO 226), seismic-wave frequencies (1-30 Hz for earthquake-engineering analysis per ASCE 7-22 site-response spectra), and rotating-machinery vibration analysis per ISO 10816. Hz is also the unit for radioactive-decay rate (the becquerel is 1 Bq = 1 disintegration/s = 1 Hz).
Quick Facts
- 1 Kilohertz equals 1000 Hertz
- 1 Hertz equals 0.001 Kilohertz
- Kilohertz is a unit of frequency
- Hertz is a unit of frequency
- This conversion is commonly used in radio communication, audio engineering, and electronics
- The Kilohertz belongs to the metric system
Common Kilohertz to Hertz Conversions
| Kilohertz (kHz) | Hertz (Hz) |
|---|---|
| 0.01 | 10 |
| 0.1 | 100 |
| 0.25 | 250 |
| 0.5 | 500 |
| 1 | 1000 |
| 2 | 2000 |
| 3 | 3000 |
| 5 | 5000 |
| 10 | 10000 |
| 15 | 15000 |
| 20 | 20000 |
| 25 | 25000 |
| 50 | 50000 |
| 75 | 75000 |
| 100 | 100000 |
| 250 | 250000 |
| 500 | 500000 |
| 1000 | 1000000 |
| 5000 | 5000000 |
| 10000 | 10000000 |
Understanding Kilohertz
The Kilohertz (symbol: kHz) is a unit of frequency. A frequency unit equal to exactly 1,000 Hz. kHz is the native band for many specific technology applications: AM (Amplitude Modulation) commercial radio broadcasting per FCC Title 47 / ITU Region 1/2/3 — Americas medium-wave broadcast band 530-1,700 kHz; CD-audio sampling rate exactly 44.1 kHz per Philips/Sony 'Red Book' specification + ANSI/SCTE standards; professional-video and film-audio sampling 48 kHz / 96 kHz / 192 kHz per AES3 / EBU 3250 / SMPTE 296 audio-engineering standards; ultrasonic medical-imaging probes 1-15 MHz with low-frequency sub-MHz transcranial Doppler at 1-2 MHz; sonar systems (low-frequency surface-ship hull-mounted 1-15 kHz, side-scan 100-500 kHz, fishfinders 50-200 kHz per NMEA 2000 / IMO standards); low-frequency RF applications (submarine VLF communication 3-30 kHz, RFID 125-134 kHz LF tags); and AM-radio carrier-frequency identification (1010 kHz, 1320 kHz, etc.). Audio engineers and broadcast-station designers work in kHz daily.
It belongs to the metric measurement system.
Kilohertz are commonly used in radio communication, audio engineering, and electronics.
Understanding Hertz
The Hertz (symbol: Hz) is a unit of frequency. The SI unit of frequency (ISO 80000-3 §3-13) equal to exactly one cycle per second (1 Hz = 1 s⁻¹). Named after German physicist Heinrich Rudolf Hertz, whose 1887-1888 experiments at Karlsruhe first demonstrated and measured electromagnetic waves and confirmed Maxwell's theory. Hz is the universal unit for periodic phenomena across physics, engineering, and consumer electronics: computer display refresh rates (60 Hz standard, 120/144/240 Hz gaming, 480 Hz high-end OLED esports monitors), residential and commercial AC mains power frequency per IEC 60038 (50 Hz universal except North America / Brazil / Liberia / Saudi Arabia at 60 Hz; aircraft 400 Hz per DO-160 to reduce transformer size and weight; ships often 400 Hz or 60 Hz), heart rate (resting ~1 Hz / 60 bpm), neuron firing rate (1-100 Hz peak), sound-wave pitch (human hearing 20 Hz - 20 kHz per ISO 226), seismic-wave frequencies (1-30 Hz for earthquake-engineering analysis per ASCE 7-22 site-response spectra), and rotating-machinery vibration analysis per ISO 10816. Hz is also the unit for radioactive-decay rate (the becquerel is 1 Bq = 1 disintegration/s = 1 Hz).
It belongs to the metric measurement system.
Hertz are commonly used in radio communication, audio engineering, and electronics.
Why Convert Kilohertz to Hertz?
Converting between Kilohertz and Hertz is a frequent requirement for engineers, scientists, and students working with frequency values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate frequency conversion is essential.
Frequently Asked Questions
How do I convert Kilohertz to Hertz?
A frequency unit equal to exactly 1,000 Hz. To convert Kilohertz to Hertz, multiply by 1000. For example, 25 kHz equals 25000 Hz.
How many Hertz are in 1 Kilohertz?
There are 1000 Hertz in 1 Kilohertz.
How many Kilohertz are in 1 Hertz?
There are 0.001 Kilohertz in 1 Hertz.
What is the formula for Kilohertz to Hertz conversion?
The formula is: multiply by 1000. This means 1 kHz = 1000 Hz.
Is a Kilohertz bigger than a Hertz?
No. One Kilohertz is smaller than one Hertz because 1 kHz equals 1000 Hz, which is greater than 1.
When do you need to convert between Kilohertz and Hertz?
The SI unit of frequency (ISO 80000-3 §3-13) equal to exactly one cycle per second (1 Hz = 1 s⁻¹). Kilohertz and Hertz are both frequency units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.