Every Calculator You’ll Ever Need Is Online for Free


Omni Calculator

This site wants to solve all the small math problems that people deal with on an everyday basis. You can always use a calculator on your device or do a quick search, but for more complex answers try one of the 1585 calculators at this site.

Omni Calculator is a web/mobile calculator that solves concrete problems such as mortgage payment, gross margin, body mass index, cooking, zombie invasion and anything else you can think of (within reason).

It's simple to use, find the calculator group that you want, click, and choose from several specialized calculators in the following categories:

  • Chemistry
  • Construction
  • Conversion
  • Ecology
  • Everyday life
  • Finance
  • Food
  • Health
  • Math
  • Physics
  • Sports
  • Statistics 
  • Other

Omni Calculator works on the web, mobile and as an embeddable web widget.

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Doesn't seem ro include an inflation/CPI calculator, which is why i why there in the first place.

Also, the instructions for using the focal length calculator {which i checked out as a random choice} could have been more clearly written

Some of the content on that site is contributed by members so it may not be up to certain standards.

As always, thanks rhiannon!
Seems a very useful find.

You're very welcome. :)