Kilohertz (kHz) and megahertz (MHz) are units of frequency used to measure the number of cycles per second of a periodic waveform. They are commonly used in the field of radio, electronics, and signal processing. Here’s a breakdown:
One kilohertz is equal to 1,000 hertz. AM radio broadcasts are typically in the frequency range of 530 to 1700 kHz.
One megahertz is equal to 1,000,000 hertz or 1,000 kHz. FM radio broadcasts are typically in the frequency range of 88 to 108 MHz.
1kHz = 0.001MHz
or
1MHz = 1000kHz
f(MHz) = f(kHz) / 1000
Example – Convert 3 kilohertz to megahertz:
Ans. f(MHz) = 3kHz / 1000 = 0.003MHz
| Kilohertz (kHz) | Megahertz (MHz) |
| 0 kHz | 0 MHz |
| 1 kHz | 0.001 MHz |
| 10 kHz | 0.01 MHz |
| 100 kHz | 0.1 MHz |
| 1000 kHz | 1 MHz |
| 10000 kHz | 10 MHz |
| 100000 kHz | 100 MHz |
| 1000000 kHz | 1000 MHz |
1 kHz (kilohertz) is equal to 1,000 Hz (hertz).
MHz (megahertz) is bigger than kHz (kilohertz). 1 MHz is equal to 1,000 kHz.
1 kHz represents a frequency of 1,000 cycles per second.
1 MHz (megahertz) is equal to 1,000,000 Hz (hertz) or 1,000 kHz (kilohertz).
20 kHz is referred to as 20 kilohertz, which represents a frequency of 20,000 cycles per second.
50 kHz means a frequency of 50,000 cycles per second.
No, typically humans cannot hear 30 kHz. The general range of human hearing is from 20 Hz to 20 kHz. Frequencies above 20 kHz are considered ultrasonic and are not audible to most humans.
These are all units of frequency. Hz (hertz) represents one cycle per second. kHz (kilohertz) is 1,000 cycles per second (or 1,000 Hz). MHz (megahertz) is 1,000,000 cycles per second (or 1,000 kHz or 1,000,000 Hz).