For mathematics teachers and students, Meta-Calculator is a free, online graphing, matrix, scientific, and statistics calculator. All four calculators are easy to use with either a cursor or a computer keyboard. The user-friendly design of all four calculators makes them a bit easier to use than traditional calculators, as they allow users to quickly toggle between different tools with just a click. Users may save graphs as a portable network graphic and share specific calculators as a URL. The full screen display provides a useful teaching tool.