Frequency Converter

Input Parameters

Frequency Value

Hz

From Unit Hertz (Hz) Kilohertz (kHz) Megahertz (MHz) Gigahertz (GHz) Terahertz (THz) Revolutions per minute (rpm) Radians per second (rad/s) Degrees per millisecond (°/ms)

To Unit Hertz (Hz) Kilohertz (kHz) Megahertz (MHz) Gigahertz (GHz) Terahertz (THz) Revolutions per minute (rpm) Radians per second (rad/s) Degrees per millisecond (°/ms)

Decimal Precision 0 1 2 3 4

Wavelength (m)

Wave Speed (m/s)

Common Frequency Ranges:

• Audio: 20Hz - 20kHz

• Radio: 3kHz - 300GHz

• Visible Light: 430THz - 750THz

Conversion Results

1.0 kHz

Equivalent to 1000Hz / 60000rpm

Frequency Unit	Value
Hertz	1000.0 Hz
Kilohertz	1.0 kHz
Megahertz	0.001 MHz
Gigahertz	0.000001 GHz

Low Frequency Medium Frequency High Frequency

Period

1.0 ms

Wavelength

299.8 km

Angular Frequency

6283.2 rad/s

Revolutions

60000 rpm

SI Units IEEE Standard

Calculation History

Date	From Value	From Unit	To Unit	Result	Actions

No Calculation History

Your calculation history will appear here after you save conversions.

Calculation saved to history

Mastering Frequency Conversion

Your Complete Guide to Converting Between Frequency Units with Our Easy Calculator

Have you ever wondered how radio stations, music, or even light waves are measured? They all use something called frequency! Frequency tells us how often something happens in a second. Think of it like a heartbeat - how many beats per minute.

This guide will show you how to easily convert between different frequency units, with real examples and our interactive calculator that does all the math for you!

What is Frequency?

Frequency is how many times something happens in one second. It's measured in Hertz (Hz), named after Heinrich Hertz who proved radio waves exist. One Hertz means one cycle per second.

Simple Example:

Imagine a drummer hitting a drum:

• 1 hit per second = 1 Hz
• 10 hits per second = 10 Hz
• 1000 hits per second = 1000 Hz (or 1 kHz)

Your heartbeat is about 1-2 Hz at rest!

Try Our Frequency Converter

No complex math needed! Convert between 8 different frequency units with just a few clicks.

The Simple Formula Behind the Calculator

The Magic Formula:

Frequency Conversion = Base Value × Conversion Factor

Where Base Value is always in Hertz (Hz)

Here's how different units relate to Hertz:

Unit	Symbol	Equals	Real-World Example
Hertz	Hz	1 cycle per second	Human heartbeat at rest
Kilohertz	kHz	1,000 Hz	AM radio broadcasts
Megahertz	MHz	1,000,000 Hz	FM radio, WiFi
Gigahertz	GHz	1,000,000,000 Hz	Computer processors, 5G networks
Terahertz	THz	1,000,000,000,000 Hz	Infrared light, medical imaging

Special Frequency Units

RPM (Revolutions Per Minute)

RPM measures how many full circles something makes in one minute. This is commonly used for engines, fans, and turntables.

RPM Conversion Example:

A vinyl record player spins at 33.3 RPM. To convert to Hertz:

33.3 RPM ÷ 60 = 0.555 Hz

This means the record makes about half a rotation each second.

Radians per Second (rad/s)

Radians per second measures angular speed - how fast something is rotating. One full circle is 2π radians (about 6.28 radians).

Degrees per Millisecond (°/ms)

This measures how many degrees something rotates in one thousandth of a second. Useful for fast-spinning objects.

Common Conversion Examples

Radio Station Example:

A radio station broadcasts at 98.5 MHz. What is this in other units?

• In Hertz: 98,500,000 Hz
• In Kilohertz: 98,500 kHz
• In Gigahertz: 0.0985 GHz

Computer Processor Example:

A computer processor runs at 3.5 GHz. What is this in other units?

• In Hertz: 3,500,000,000 Hz
• In Megahertz: 3,500 MHz
• In Kilohertz: 3,500,000 kHz

Frequency Ranges in Real Life

Frequency Range	Applications	Examples
0-20 Hz	Infrasound, Earth vibrations	Earthquakes, whale communication
20 Hz - 20 kHz	Human hearing range	Music, speech, sounds
20 kHz - 300 GHz	Radio waves	Radio, TV, WiFi, Bluetooth
300 GHz - 430 THz	Microwaves, Infrared	Microwave ovens, remote controls
430-750 THz	Visible light	Rainbow colors, lasers

Fun Fact:

Light is electromagnetic radiation with frequencies around 430-750 THz. Red light has the lowest frequency (~430 THz) and violet light has the highest (~750 THz) in the visible spectrum!

Key Features of Our Frequency Converter

8 Conversion Units

Convert between Hertz, Kilohertz, Megahertz, Gigahertz, Terahertz, RPM, rad/s, and degrees/ms.

History Tracking

Save your conversions and track them over time. Perfect for engineering projects or experiments.

Visual Chart

See your frequency on a logarithmic chart to understand the scale better.

Multiple Export Formats

Save results as PDF, HTML, or text files for reports, documentation, or sharing.

How to Use the Converter (Step by Step)

Step 1: Enter Your Frequency Value

Type in the number you want to convert. For example: 1000

Step 2: Select "From" Unit

Choose what unit your number is currently in. Options include:

• Hz - For low frequencies like audio
• kHz - For radio frequencies
• MHz - For FM radio, WiFi
• GHz - For computer processors, 5G
• RPM - For motors, fans, turntables

Step 3: Select "To" Unit

Choose what unit you want to convert to. The converter shows you all options at once!

Step 4: Set Decimal Precision

Choose how many decimal places you want in your answer (0 to 4).

Quick Conversion Tip

Our calculator automatically saves your inputs as you type. No need to click "save" - we've got you covered!

Advanced Features

Wavelength Calculation

Our converter can also calculate wavelength if you know the wave speed. For electromagnetic waves in air/vacuum, this is the speed of light (299,792,458 m/s).

Wavelength = Speed of Light ÷ Frequency

Period Calculation

The converter automatically calculates the period - how long one cycle takes. This is useful for timing applications.

Period = 1 ÷ Frequency

Frequently Asked Questions (15 Common Questions)

1. What's the difference between Hz, kHz, MHz, and GHz?

They're all units of frequency, just different scales. 1 kHz = 1000 Hz, 1 MHz = 1000 kHz, 1 GHz = 1000 MHz. It's like meters, kilometers, and millimeters - same measurement, different scales.

2. Why is my computer processor measured in GHz?

GHz (Gigahertz) measures how many cycles per second your processor can handle. A 3.5 GHz processor can handle 3.5 billion cycles per second! Higher GHz generally means faster processing.

3. Can I convert RPM to Hz?

Yes! RPM measures revolutions per minute, while Hz measures cycles per second. To convert RPM to Hz: Divide RPM by 60. Example: 1200 RPM ÷ 60 = 20 Hz.

4. What frequency can humans hear?

Most humans can hear between 20 Hz (very low bass) and 20,000 Hz (20 kHz, very high pitch). As we age, we lose the ability to hear higher frequencies.

5. What's a "good" WiFi frequency?

WiFi uses 2.4 GHz and 5 GHz bands. 2.4 GHz travels farther through walls, while 5 GHz is faster but has shorter range. Most modern routers use both.

6. How do I convert between frequency and wavelength?

Use the formula: Wavelength = Speed of Light ÷ Frequency. Our calculator does this automatically if you enter the wave speed (default is speed of light).

7. What frequency is 5G?

5G uses a range of frequencies: low-band (600-850 MHz), mid-band (2.5-4.2 GHz), and high-band/mmWave (24-39 GHz). Different frequencies offer different trade-offs between speed and coverage.

8. Why do radio stations use kHz and MHz?

AM radio uses kHz frequencies (530-1700 kHz) because these waves travel long distances. FM radio uses MHz (88-108 MHz) for better sound quality but shorter range.

9. How fast is 1 Hz in practical terms?

1 Hz means one cycle per second. A clock's second hand moving one tick per second is approximately 1 Hz. Your resting heartbeat is about 1-2 Hz.

10. What's the highest frequency possible?

In theory, there's no upper limit. In practice, gamma rays have frequencies above 10¹⁹ Hz. Our calculator supports up to Terahertz (10¹² Hz), which covers most practical applications.

11. How does frequency relate to energy?

Higher frequency = higher energy. This is why ultraviolet light (high frequency) can cause sunburn, while radio waves (low frequency) don't.

12. Can I save and compare multiple conversions?

Yes! Our history feature lets you save unlimited conversions and export them for comparison. Perfect for engineering projects or academic work.

13. What's the difference between frequency and pitch?

Frequency is the physical measurement (Hz). Pitch is how high or low we perceive a sound. Higher frequency = higher pitch. Middle C on a piano is about 261.6 Hz.

14. How do I calculate frequency if I know the time period?

Frequency = 1 ÷ Period. If something happens every 0.5 seconds, the frequency is 1 ÷ 0.5 = 2 Hz. Our calculator shows both frequency and period.

15. What frequency do animals hear?

Different animals hear different ranges. Dogs hear up to 45 kHz, cats up to 64 kHz, and bats use echolocation at 20-200 kHz. Dolphins can hear up to 150 kHz!

Real-World Applications

For Engineers & Technicians

• Circuit Design: Calculate oscillator frequencies
• Radio Work: Convert between broadcast frequencies
• Mechanical Engineering: Convert motor RPM to Hz
• Audio Engineering: Work with sound frequencies

For Students & Teachers

• Physics: Understand wave properties
• Electronics: Learn about signal processing
• Music: Connect frequency to musical notes
• Biology: Study hearing ranges

For Everyday Life

• Home WiFi: Understand 2.4GHz vs 5GHz
• Car Maintenance: Convert engine RPM
• Entertainment: Understand radio/TV frequencies
• Cooking: Understand microwave oven frequencies

Pro Tip:

Bookmark our converter for quick access! Whether you're fixing electronics, studying physics, or just curious about how things work, it's always handy to have a frequency converter available.

Final Thoughts

Frequency is everywhere in our world - from the music we listen to, to the WiFi that connects us, to the light that lets us see. Understanding how to convert between different frequency units opens up a whole new way of seeing (and hearing!) the world around you.

Our converter makes what used to be complex math simple and accessible. Whether you're a professional engineer or just someone curious about how things work, you now have a powerful tool at your fingertips.