About
"About" tools
Development blog
Contact
History
Privacy Statement
Terms & Conditions
How to use the tools
Color
"Color" tools
CMYK conversion
HTML Color list
RGB conversion
Websafe Color list
Data
"Data" tools
Bandwidth convert
Download calculator
Data size calculator
Finance
"Finance" tools
EV mileage calculator
Fuel Cost calculator
Natural Gas calculator
Mortgage loan calculator
Music
"Music" tools
Beats-per-minute
Audio delay
Music Frequency
Song length
Music Scale
Tap your tempo
Photo
"Photo" tools
Aspect ratio
Aspect Fit
Composition Calculator
Depth-of-Field Calculator
DPI calculator
Image filesize calculator
Light calculator (EV)
Megapixel calculator
Megapixel Aspects
Portrait distance
Physics
"Physics" tools
Acceleration calculator
Battery Capacity (Wh)
Distance calculator
Exponential growth
Gladwell's 10000 hours
Speed converter
tCO2e Calculator
Frequency Calculator
Electrical power
Wavelength Calculator
Video
"Video" tools
Audio file size calculator
Common bitrates
DCP file size
Foot-Lambert Calculator
Screen size
Video bitrate
Frame rate convert
Video file size calculator
Web
"Web" tools
Content Security Policy
Redirection check
Security Policy Framework check
HTTPS config check
HTML char map
Emoji char map
HTML encoder
SEO Performance
URL encoder
Frequency Calculator
Give frequency in Hertz
Frequency
Hz
KHz
MHz
GHz
THz
PHz
EHz
Calculate frequency!
Frequency ↔ wavelength
Hertz
Cycles per second
50
P
Hz
Power of 10
Log
10
(a.k.a.
'orders of magnitude'
)
16.699
Power of 2
Log
2
(a.k.a.
'octaves'
)
55.4728
Cycle duration
1 / hertz = time/cycle
20
a
sec
Wavelength
Speed of light = 299 792 km/s
6
n
m
Electro-Magnetic Spectrum
X-ray
Frequency:
30
P
Hz - 30
E
Hz
Wavelength:
9.99
p
m - 9.99
n
m
Examples
Blue (visible light)
Infra-red
AM Radio
FM Radio
UHF TV
Wifi 11a
Wifi 11g
X-ray
References
Infrared
Hertz
Speed of Sound
