Free calculators and converters

This website contains a bunch of web-based tools (you dont need to install anything, just run them here) that I have developed through the years.Use them like you want (within reason) and if you really like them, let me know.

How could you use these tools?
I have a 30-second TV commercial at 25fps, what happens if I convert it to 24fps (cinema)?Click on video framerateFill in 25 (input) fps, 30 sec and 24 (output) fps. Results: your cinema spot will be 31.25 sec.Click here for more examples
Bash tools Bash boilerplate
Create bash scripts fast with a slick boilerplate
Calculator tools Acceleration calculator
Convert m/s² into in/s², g Battery calculator
What does the kWh of a battery mean? Distance calculator
Speed x time → distance Electric Car calculator
How much $ does your electric car use in kWh per year? Exponential growth
Exponential growth / logarithmic decay Fuel Cost calculator
How much $ does your car fuel cost per year? Gladwells 10000 hours
Deliberate practice according to Malcolm Gladwell Speed converter
m/s ⇆ km/h, mph, mach Frequency Calculator
Hertz - wavelength, spectrum Electrical power
Volt x Amp → Watt, kWh, Ah, Joule, calorie Wavelength Calculator
Wavelength - Hz, spectrum Mortgage loan calculator
Calculate monthly payments for a mortgage loan
Color tools CMYK conversion
CMYK ⇆ RGB, HSV, XYZ ... HTML Color list
List of named HTML colors Pantone Color list
List of named Pantone colors RGB conversion
RGB ⇆ CMYK, HSV, XYZ ... Websafe Color list
List of websafe colors
Data tools Bandwidth convert
Mbps ⇆ KB/s, GB/day, TB/week ... Download calculator
file size network speed ⇆ time to download Data size calculator
Calculate 10 Mbps x 6.5 hours = ? GB
Music tools Beats-per-minute
Convert BPM to Hz, bar length, fractions Audio delay
Calculate audio delay length in msec Music Frequency
Convert pitch to musical note and wavelength Song length
Calculate song length from BPM Music Scale
Generate scales with frequencies Tap your tempo
Tap to find the BPM of a song or a heartbeat
Photo tools Aspect ratio
Image Width x Height → aspect ratio Composition Calculator
Focal length, distance, crop factor → image composition Depth-of-Field Calculator
Aperture, focal length, subject distance, crop → depth-of-field DPI calculator
Print Width x Height and dpi → megapixels Image filesize calculator
Image Width x Height JPG/RAW/PNG → bytes Light calculator (EV)
Aperture, shutter time, ISO → Exposure Value Megapixel calculator
Image Width x Height → megapixels Megapixel Aspects
See megapixels in different aspect ratios
Video tools Audio file size calculator
Estimate audio file size for (un)compressed audio Common bitrates
List of common video bitrates (Prores, DV, DCP, MPEG...) DCP file size
Calculate DCP audio and video filesizes Foot-Lambert Calculator
Foot-Lambert Calculator for luminance of a screen Screen size
Calculate screen size from diagional and aspect ratio Video bitrate
Estimate video bitrate based on resolution, fps and bit depth Frame rate convert
Framerate conversion with ffmpeg and sox Video file size calculator
Estimate video file size from resolution and duration
Web tools Content Security Policy
Create your Content Security Policy header fast! Redirection check
Is your site redirection correctly configured? Security Policy Framework check
Is your SPF correctly configured? HTTPS config check
Is your site correctly configured for HTTPS? HTML char map
View all special HTML characters «» Emoji char map
View all special Unicode characters

TAGS:and calculators Free io toolstud converters Colorconversion bandwidthcalculator 

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Color conversion, bandwidth calculator, photo/video bitrate/filesize, aspect ratio/composition/dept-of-field, bpm, html charmap

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