Calculatority is a one-stop site for anything calculator related. Whether you're a nursing student trying to nail dosage math, an engineer hunting for a graphing model that handles matrices, or a small business owner who just needs a reliable desktop unit at the till, this site has a roundup written for your exact situation.

The bulk of the content is "5 best calculators for..." guides covering exams (SAT, ACT, JEE, GCSE, IGCSE, A-Level, CFA, FE, LET), academic subjects (calculus, linear algebra, statistics, chemistry), and professional fields (accounting, electrical work, land surveying, even jewelry shops).

You'll also find a growing set of free online calculators for things like cylinder volume, sphere volume, mass to volume conversions, and stroke volume.

It's basically a directory for figuring out which calculator fits your need. You also get to do some calculations right in your browser.