More Tools

CalcWorld is organised around six subjects: arithmetic, algebra, geometry, statistics, number systems and science, with a separate section for finance. A few tools from the older version of the site do not belong to any of them. They still work, so they are kept here.

The odds converter translates between decimal, fractional and American odds and shows the probability each one implies. The infix to postfix converter rewrites an expression such as A + B × C in postfix (reverse Polish) notation using the shunting-yard algorithm, a standard exercise in computer science courses. The image format converter changes images between PNG, JPG, WebP and a block-based SVG inside your browser. The drunk calculator is a novelty: a four-function calculator that adds a random error to its answers on purpose. It has nothing to do with alcohol limits and should not be used for anything that matters.

Looking for something else? The full list of tools has everything on the site, and the search box at the top of every page finds a calculator by name.