Calculator (disambiguation)

A calculator (in contemporary usage) is an electronic hand-held device that performs mathematical computations.

Calculator may also refer to:
 * Calculator (software), a computer program that performs mathematical computations
 * Calculator (Windows), a computer program in Microsoft Windows
 * Calculator (Apple), a basic calculator application bundled with Apple devices
 * Calculator (Nintendo Switch), a paid application available for Nintendo Switch
 * Mechanical calculator, a calculating device used from the 1700s to the mid-1900s
 * Mental calculator, a person who performs calculations in their head
 * Calculator (character), DC Comics villain
 * Oxford Calculators, a group of 14th-century philosophers
 * Calculator (band), an American emo band
 * Richard Swineshead, English mathematician whose popular name was Calculator