Frequency Converter

Convert Hz, kHz, MHz, GHz, RPM and rad/s.

60 RPM=1 Hz
1 RPM = 0.016666667 Hz 1 Hz = 60 RPM

All conversions

1,000
Millihertz mHz
1
Hertz Hz
0.001
Kilohertz kHz
0.000001
Megahertz MHz
1e-9
Gigahertz GHz
1e-12
Terahertz THz
60
Revolutions per minute RPM
6.2831853
Radians per second rad/s

Common frequency conversions

RPM to Hz
RPMHz
10.016666667
50.083333333
100.16666667
250.41666667
500.83333333
1001.6666667
100016.666667
Hz to RPM
HzRPM
160
5300
10600
251,500
503,000
1006,000
100060,000
MHz to GHz
MHzGHz
10.001
50.005
100.01
250.025
500.05
1000.1
10001
kHz to Hz
kHzHz
11,000
55,000
1010,000
2525,000
5050,000
100100,000
10001,000,000

Unit reference

UnitSymbolEquals
MillihertzmHz1 mHz = 0.001 Hz
HertzHzbase unit
KilohertzkHz1 kHz = 1,000 Hz
MegahertzMHz1 MHz = 1,000,000 Hz
GigahertzGHz1 GHz = 1,000,000,000 Hz
TerahertzTHz1 THz = 1,000,000,000,000 Hz
Revolutions per minuteRPM1 RPM = 0.01666666667 Hz
Radians per secondrad/s1 rad/s = 0.1591549431 Hz

About this frequency converter

Convert frequency between hertz and its metric multiples, and between cycles per second, revolutions per minute (RPM) and angular frequency in radians per second. Useful for radio, CPUs, audio, AC power and rotating machinery.

Frequency is the inverse of period: see the time converter. For angles per turn use the angle converter.

Electronics & radio

Move between kHz, MHz and GHz for radio bands, clock speeds and Wi-Fi channels.

Motors & engines

Convert RPM to Hz or rad/s for gearing, vibration and torque calculations.

Audio & music

Relate note pitches (A4 = 440 Hz) and filter cutoffs in Hz and kHz.

Tips for accurate results

RPM ↔ Hz

Divide RPM by 60 to get Hz. So 3,000 RPM is 50 Hz, and 1,800 RPM is 30 Hz.

Angular frequency

ω (rad/s) = 2π × f (Hz). One Hz is about 6.28319 rad/s.

Frequently asked questions

How many Hz are in a MHz?

One megahertz equals 1,000,000 hertz.

How do I convert RPM to Hz?

Divide the RPM by 60. For example, 6,000 RPM = 100 Hz.

How do I convert Hz to rad/s?

Multiply hertz by 2π (6.28319). For example, 50 Hz ≈ 314.16 rad/s.

What does 1 Hz mean?

One hertz is one cycle per second.

⭐ User Reviews

0
☆☆☆☆☆
0 reviews
💬
No Reviews Yet
Be the first to share your experience with this tool!
Your feedback helps others make better decisions.