Hertz to Kilohertz Converter

Relationship Between Hertz and Kilohertz

The conversion between hertz and kilohertz is based on the metric system where 1 kilohertz equals 1,000 hertz.

1 kHz = 1,000 Hz

Therefore,

1 Hz = 0.001 kHz

To convert hertz to kilohertz, we divide the value in hertz by 1,000 (or multiply by 0.001).

For example, 1,000 Hz equals 1 kHz, and 5,000 Hz equals 5 kHz.

Hertz

What is a Hertz (Hz)?

The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), defined as one cycle per second. It is named after Heinrich Rudolf Hertz, a German physicist who made important contributions to the study of electromagnetism. The hertz is used to measure periodic events, such as oscillations, vibrations, and waves.

History and Origin

The hertz was adopted as the unit of frequency by the International Electrotechnical Commission (IEC) in 1930 and later by the General Conference on Weights and Measures (CGPM) in 1960. It replaced the older unit 'cycles per second' (cps). The unit is named after Heinrich Rudolf Hertz (1857-1894), who was the first to conclusively prove the existence of electromagnetic waves.

Common Applications

• Audio frequencies: Human hearing range is approximately 20 Hz to 20,000 Hz (20 kHz)
• Radio frequencies: AM radio (530-1700 kHz), FM radio (88-108 MHz)
• Electrical power: Standard AC power is 50 Hz (Europe, Asia) or 60 Hz (Americas)
• Computer processors: CPU clock speeds measured in GHz (billions of hertz)
• Musical notes: A4 (concert pitch) is 440 Hz
• Medical imaging: Ultrasound frequencies range from 2-18 MHz
• Wireless communication: WiFi (2.4 GHz, 5 GHz), Bluetooth (2.4 GHz)
• Scientific research: Various frequencies used in spectroscopy, NMR, and other fields

Kilohertz

What is a Kilohertz (kHz)?

A kilohertz (symbol: kHz) is a unit of frequency equal to 1,000 hertz. The prefix 'kilo-' means one thousand, making the kilohertz a convenient unit for measuring frequencies in the thousands of hertz range. Kilohertz is commonly used for audio frequencies, radio frequencies, and other applications where values are in the thousands.

Common Uses

• AM radio: Broadcast frequencies range from 530 kHz to 1,700 kHz
• Audio equipment: Audio processing, sampling rates (44.1 kHz, 48 kHz for digital audio)
• Ultrasound: Medical and industrial ultrasound typically uses frequencies from 20 kHz to several MHz
• Sonar: Underwater detection systems operate in the kHz range
• Electronic circuits: Oscillator circuits, filters, and signal processing
• Scientific instruments: Frequency counters, spectrum analyzers
• Telecommunications: Some communication systems use kHz frequencies

Conversion Context

Kilohertz is particularly useful when dealing with frequencies that would be cumbersome to express in hertz. For example, expressing 100,000 Hz as 100 kHz is much more readable. The kilohertz unit bridges the gap between hertz (for lower frequencies) and megahertz (for higher frequencies).

Hertz to Kilohertz Conversion Table

The conversion of hertz to kilohertz for certain values are provided below: