A method for calculating a formula included in text in an electronic device includes detecting the text, detecting at least one formula included in the detected text, calculating at least the one formula, and displaying the calculated result. An apparatus for implementing the method includes at least one processor, at least one memory, and at least one program which is stored in at least the one memory and is configured to be executable by at least the one processor. The at least one program detects input text, detects at least one formula included in the detected text, calculates at least the one formula, and displays the calculated result.