Kilohertz to Hertz Converter
Enter the value that you want to convert kilohertz (kHz) to hertz (Hz) or hertz to kilohertz.Also written as KHZ to HZ conversion.
1 kilohertz = 1000.0000000 hertz
Formula: hertz = kilohertz value × 1000.0000000
KHZ to HZ — kilohertz to hertz
10 kilohertz = 10000.00000 hertz
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Why Convert Kilohertz to Hertz?
About the Kilohertz
Kilohertz (kHz) is a unit of frequency measurement. 1 kilohertz is equal to 1000.0000000 hertz.
What is Hertz?
Hertz (Hz) is a unit of frequency measurement. 1 hertz is equal to 0.0010000 kilohertz.
Frequency Conversion Applications
Frequency units span from hertz (cycles per second) through kilohertz (AM radio), megahertz (FM radio, processors), to gigahertz (Wi-Fi, 5G, microprocessors) and terahertz (scientific imaging). RPM to hertz conversion connects mechanical rotation to electrical frequency in generators and motors. Musicians convert between frequency (Hz) and musical pitch.
kilohertz to hertz metric conversion table
| 0.01 kHz | = | 10.00000 Hz |
| 0.1 kHz | = | 100.00000 Hz |
| 1 kHz | = | 1000.00000 Hz |
| 2 kHz | = | 2000.00000 Hz |
| 3 kHz | = | 3000.00000 Hz |
| 4 kHz | = | 4000.00000 Hz |
| 5 kHz | = | 5000.00000 Hz |
| 6 kHz | = | 6000.00000 Hz |
| 7 kHz | = | 7000.00000 Hz |
| 8 kHz | = | 8000.00000 Hz |
| 9 kHz | = | 9000.00000 Hz |
| 10 kHz | = | 10000.00000 Hz |
| 11 kHz | = | 11000.00000 Hz |
| 12 kHz | = | 12000.00000 Hz |
| 13 kHz | = | 13000.00000 Hz |
| 14 kHz | = | 14000.00000 Hz |
| 15 kHz | = | 15000.00000 Hz |
| 16 kHz | = | 16000.00000 Hz |
| 17 kHz | = | 17000.00000 Hz |
| 18 kHz | = | 18000.00000 Hz |
| 19 kHz | = | 19000.00000 Hz |
| 20 kHz | = | 20000.00000 Hz |
| 30 kHz | = | 30000.00000 Hz |
| 40 kHz | = | 40000.00000 Hz |
| 50 kHz | = | 50000.00000 Hz |
| 60 kHz | = | 60000.00000 Hz |
| 70 kHz | = | 70000.00000 Hz |
| 80 kHz | = | 80000.00000 Hz |
| 90 kHz | = | 90000.00000 Hz |
| 100 kHz | = | 100000.00000 Hz |
| 200 kHz | = | 200000.00000 Hz |
| 300 kHz | = | 300000.00000 Hz |
| 400 kHz | = | 400000.00000 Hz |
| 500 kHz | = | 500000.00000 Hz |
| 600 kHz | = | 600000.00000 Hz |
| 700 kHz | = | 700000.00000 Hz |
| 800 kHz | = | 800000.00000 Hz |
| 900 kHz | = | 900000.00000 Hz |
| 1000 kHz | = | 1000000.00000 Hz |
How to Convert KHZ to HZ (Kilohertz to Hertz)?
We can convert kilohertz to hertz by using an example.
Example:
Convert 20 Kilohertz to Hertz?
We know 1 Kilohertz = 1000.0000000 hertz; 1 Hertz = 0.0010000 kilohertz.
20 kilohertz = ___Hz
20 × 1000.0000000 = 20000.00000 Hz (we know 1 kilohertz = 1000.0000000 hertz)
Answer:
20 kilohertz = 20000.00000 hertz
Kilohertz to Hertz Conversion for Radio and Audio Applications
Kilohertz (kHz) is widely used in AM radio broadcasting, audio engineering, and electronics. Converting kHz back to Hz (multiplying by 1,000) is necessary when programming microcontrollers, setting oscillator frequencies, or calculating wavelengths. Since 1 kHz = 1,000 Hz, the math is straightforward.
- Start with the frequency in kHz.
- Multiply by 1,000.
- The result is the frequency in Hz.
- Example: 88.3 kHz × 1,000 = 88,300 Hz.
kHz to Hz Conversion Table
Common frequencies in electronics and broadcasting expressed in both units:
| Kilohertz | Hertz |
|---|---|
| 0.02 kHz | 20 Hz |
| 1 kHz | 1,000 Hz |
| 3.4 kHz | 3,400 Hz |
| 16 kHz | 16,000 Hz |
| 20 kHz | 20,000 Hz |
| 32.768 kHz | 32,768 Hz |
| 455 kHz | 455,000 Hz |
| 900 kHz | 900,000 Hz |
Step-by-Step: kHz to Hz Conversion
Question 1: A watch crystal oscillates at 32.768 kHz. What is this in Hz?
Solution:
Hz = kHz × 1,000
= 32.768 × 1,000
= 32,768 Hz
Answer: 32.768 kHz = 32,768 Hz — chosen because 32,768 = 2¹⁵, making it easy to divide down to 1 Hz with binary counters.
Question 2: An AM radio station broadcasts at 680 kHz. Express in Hz.
Solution:
Hz = kHz × 1,000
= 680 × 1,000
= 680,000 Hz
Answer: 680 kHz = 680,000 Hz — in the medium-wave AM broadcast band.
Question 3: A PWM signal runs at 15.625 kHz. Convert to Hz for a timer register calculation.
Solution:
Hz = kHz × 1,000
= 15.625 × 1,000
= 15,625 Hz
Answer: 15.625 kHz = 15,625 Hz — often used for LED dimming PWM above audible range.
Practice: kHz to Hz
Try solving these on your own to test your understanding:
- Convert 44.1 kHz to Hz. (Answer: 44,100 Hz)
- A sonar system uses 200 kHz. Express in Hz. (Answer: 200,000 Hz)
- Convert 5.5 kHz to Hz. (Answer: 5,500 Hz)
- An RC filter cuts off at 7.23 kHz. What is this in Hz? (Answer: 7,230 Hz)
- Convert 0.3 kHz to Hz. (Answer: 300 Hz)
The 32.768 kHz Crystal: Most Produced Oscillator in History
Nearly every digital watch, real-time clock (RTC) chip, and microcontroller uses a 32.768 kHz crystal. This specific frequency equals 2¹⁵ (32,768), so dividing by 2 fifteen times using simple binary counters produces exactly 1 Hz — one tick per second. Billions of these tiny tuning-fork crystals are manufactured annually, making them the single most produced electronic component.
AM Radio: Why Frequencies Are Given in kHz
The AM broadcast band spans 530–1,700 kHz (530,000–1,700,000 Hz). Expressing these as kHz keeps numbers manageable for station identification and dial markings. In contrast, FM uses MHz because its band (87.5–108 MHz) would be unwieldy in kHz (87,500–108,000 kHz). The choice of kHz, MHz, or GHz depends on which prefix keeps values in a human-friendly 1–999 range.
Key Takeaways
- 1 kHz = 1,000 Hz (multiply kHz by 1,000).
- AM radio frequencies are expressed in kHz (530–1,700 kHz).
- The watch crystal standard is 32.768 kHz = 32,768 Hz = 2¹⁵ Hz.
- Shift the decimal three places right for the conversion.
- Audio frequencies above 1,000 Hz are often written in kHz for convenience.
Kilohertz to Hertz Conversion Formula
hertz = kilohertz × 1000.0000000
1 kilohertz = 1000.0000000 hertz
1 hertz = 0.0010000 kilohertz
Reverse: kilohertz = hertz × 0.0010000
Frequently Asked Questions
How many hertz are in 1 kilohertz?
There are 1000.0000000 hertz in 1 kilohertz. To convert kilohertz to hertz, multiply the value by 1000.0000000.
How do I convert kilohertz to hertz?
Multiply your kilohertz value by 1000.0000000 to get the equivalent in hertz. For example, 5 kilohertz = 5 × 1000.0000000 = 5000.00000 hertz.
How do I convert hertz to kilohertz?
Multiply your hertz value by 0.0010000 to get the equivalent in kilohertz. Alternatively, divide by 1000.0000000.
What is 10 kilohertz in hertz?
10 kilohertz is equal to 10000.00000 hertz.
What is 100 kilohertz in hertz?
100 kilohertz is equal to 100000.00000 hertz.