Frequency Converter
Convert between hertz, kilohertz, megahertz, and more
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Conversion Formula:
Multiply by 0.001
Common Conversions
Quick Reference Table
| Hz | kHz | MHz | GHz |
|---|---|---|---|
| 1 | 0.001 | 1 × 10⁻⁶ | 1 × 10⁻⁹ |
| 1,000 | 1 | 0.001 | 1 × 10⁻⁶ |
| 1,000,000 | 1,000 | 1 | 0.001 |
| 1,000,000,000 | 1,000,000 | 1,000 | 1 |
Frequency Facts
- • The human ear can typically detect frequencies from 20 Hz to 20 kHz, with sensitivity decreasing with age.
- • Ultrasound frequencies (above 20 kHz) are used in medical imaging and industrial cleaning.
- • The standard electrical frequency is 50 Hz in Europe and 60 Hz in North America.
- • Frequency is related to wavelength by the formula: frequency = speed of wave / wavelength.
- • Alpha brain waves during relaxation occur at frequencies between 8-13 Hz.
Practical Applications
Telecommunications
- • AM Radio: 535-1705 kHz
- • FM Radio: 88-108 MHz
- • 4G LTE: 700-2600 MHz
- • 5G: 24-86 GHz
- • Wi-Fi: 2.4 GHz and 5 GHz
Computing
- • CPU Clocks: 2-5 GHz
- • RAM: 2133-4800 MHz
- • Hard Drives: 5400-15000 RPM
- • Display Refresh: 60-240 Hz
Audio & Music
- • Middle C: 261.63 Hz
- • Standard Tuning A: 440 Hz
- • Bass Frequencies: 20-300 Hz
- • Typical Music Tempo: 60-200 BPM
Medical & Biological
- • Heart Rate: 60-100 BPM
- • Brain Waves: 0.5-30 Hz
- • Ultrasound Imaging: 2-18 MHz
- • Circadian Rhythm: ~1 cycle per day
Electromagnetic Spectrum
Frequency is used to categorize electromagnetic radiation across the entire spectrum:
| Type | Frequency Range | Applications |
|---|---|---|
| Radio waves | 3 Hz - 300 GHz | Broadcasting, communications, radar |
| Microwaves | 300 MHz - 300 GHz | Cooking, satellite communications, Wi-Fi |
| Infrared | 300 GHz - 400 THz | Thermal imaging, remote controls, fiber optics |
| Visible light | 400 - 790 THz | Human vision, photography, displays |
| Ultraviolet | 790 THz - 30 PHz | Sterilization, blacklights, vitamin D production |
| X-rays | 30 PHz - 30 EHz | Medical imaging, material analysis |
| Gamma rays | Above 30 EHz | Cancer treatment, sterilization, astronomy |
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Visual Comparison
Frequency Visualization
Source Value
〰️
1000 Kilohertz
(1.00 MHz)
↔️ equals ↔️
Converted Value
〰️
1.0 Megahertz
(1.00 MHz)
Animation speed represents relative frequency
Frequency Comparison
📻
1000 Kilohertz
1.00 MHz equivalent
Similar to: AM radio
Standard AM broadcast band
Frequency Category: Radio Frequency
📻
1.0 Megahertz
1.00 MHz equivalent
Similar to: AM radio
Standard AM broadcast band
Frequency Category: Radio Frequency
1 Kilohertz = 1.0000e+0 Megahertz
Frequency Spectrum
This logarithmic scale shows where these frequencies fall in the electromagnetic spectrum
Marker A: 1000 Kilohertz
1.00 MHz
Marker B: 1.0 Megahertz
1.00 MHz
Common Frequency Examples
1 Hz
One cycle per second, human heartbeat
440 Hz
Standard musical note A above middle C
2.4 GHz
Wi-Fi and microwave oven frequency
60 Hz / 50 Hz
Standard power line frequency (US/Europe)
540-1600 kHz
AM radio broadcast band
88-108 MHz
FM radio broadcast band
Mobile tip: Swipe left or right on the unit dropdown to quickly change units, or use the arrow buttons
About the Frequency Converter
Convert between hertz, kilohertz, megahertz, and more All conversions run instantly in your browser and nothing you enter is sent to a server.
Common Conversion Formulas
| From | To | Formula |
|---|---|---|
| Hertz (Hz) | Kilohertz (kHz) | kHz = Hz / 1000 |
| Megahertz (MHz) | Gigahertz (GHz) | GHz = MHz / 1000 |
| Seconds (period) | Hertz (frequency) | Hz = 1 / period |