Frequency Converter
Convert between frequency units
How to Use This Calculator
Enter Frequency Value
Input the frequency value you want to convert. Enter the numerical value only.
Select From Unit
Choose the unit of your input frequency: Hz, kHz, MHz, GHz, THz, or rad/s.
Convert
Click convert to see the frequency in all available units.
Conversion Formulas
1 kHz = 1,000 Hz
1 MHz = 1,000,000 Hz
1 GHz = 1,000,000,000 Hz
1 THz = 1,000,000,000,000 Hz
1 rad/s = 1/(2π) Hz ≈ 0.159 Hz
1 Hz = 2π rad/s ≈ 6.283 rad/s
Example:
Convert 1 MHz to other units:
1 MHz = 1,000,000 Hz = 1,000 kHz = 0.001 GHz = 0.000001 THz
1 MHz = 6,283,185 rad/s
About Frequency Converter
The Frequency Converter converts frequency values between different units: Hertz (Hz), Kilohertz (kHz), Megahertz (MHz), Gigahertz (GHz), Terahertz (THz), and Radians per second (rad/s). This tool is essential for working with frequencies across different scientific and engineering disciplines.
When to Use This Calculator
- Electronics: Convert between frequency units in circuit design
- Radio Engineering: Work with different frequency bands (kHz, MHz, GHz)
- Physics: Convert between Hz and rad/s for angular frequency
- Audio Engineering: Convert audio frequencies between units
- Telecommunications: Work with signal frequencies in various units
- Education: Learn frequency unit conversions
Why Use Our Calculator?
- ✅ Quick Conversions: Convert between all common frequency units instantly
- ✅ Accurate Results: Precise calculations with proper unit conversions
- ✅ Multiple Units: Supports Hz, kHz, MHz, GHz, THz, and rad/s
- ✅ Scientific Notation: Handles very large and small values
- ✅ Free Tool: No registration required
Understanding Frequency Units
Frequency measures how often a periodic event occurs per unit time. Different units are used depending on the application:
- Hz (Hertz): Base unit, cycles per second
- kHz: Thousands of Hz, used for audio and low-frequency signals
- MHz: Millions of Hz, used for radio frequencies
- GHz: Billions of Hz, used for microwave and computer frequencies
- THz: Trillions of Hz, used for infrared and optical frequencies
- rad/s: Angular frequency, used in physics and engineering
Common Frequency Ranges
- Audio: 20 Hz - 20 kHz
- Radio: 3 kHz - 300 GHz
- Microwave: 300 MHz - 300 GHz
- Optical: 430 THz - 750 THz (visible light)
Frequently Asked Questions
What is frequency?
Frequency is the number of cycles or oscillations per second, measured in Hertz (Hz). It describes how often a periodic event repeats.
How do I convert Hz to kHz?
Divide the frequency in Hz by 1000 to get kHz. For example, 5000 Hz = 5 kHz.
What is the relationship between Hz and rad/s?
Angular frequency (rad/s) = 2π × frequency (Hz). For example, 1 Hz = 2π rad/s ≈ 6.283 rad/s.
When should I use MHz vs GHz?
MHz (megahertz) is used for frequencies in the millions, while GHz (gigahertz) is used for frequencies in the billions. Radio typically uses MHz, while computer processors and microwaves use GHz.
What frequency range is used for WiFi?
WiFi typically uses 2.4 GHz and 5 GHz bands. These are in the microwave range of the electromagnetic spectrum.