Excel Formulas Dictionary

Master Excel with our comprehensive formula reference. Each entry includes syntax, examples, and real-world use cases.

BeginnerEssential Formulas

IF Function in Excel

Checks whether a condition is met, and returns one value if true, and another value if false.

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SUM Function in Excel

Adds all the numbers in a range of cells.

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COUNTIF Function in Excel

Counts the number of cells within a range that meet a single criterion.

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SUMIF Function in Excel

Adds the cells specified by a given condition or criteria.

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CONCATENATE Function in Excel

Joins two or more text strings into one string. (Note: Replaced by CONCAT and TEXTJOIN in newer versions).

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LEFT Function in Excel

Returns the first character or characters in a text string, based on the number of characters you specify.

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RIGHT Function in Excel

Returns the last character or characters in a text string, based on the number of characters you specify.

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LEN Function in Excel

Returns the number of characters in a text string.

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TRIM Function in Excel

Removes all spaces from text except for single spaces between words.

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TODAY Function in Excel

Returns the serial number of the current date.

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NOW Function in Excel

Returns the serial number of the current date and time.

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AVERAGE Function in Excel

Returns the average (arithmetic mean) of the arguments.

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MIN Function in Excel

Returns the smallest number in a set of values.

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MAX Function in Excel

Returns the largest number in a set of values.

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MEDIAN Function in Excel

Returns the median (middle value) of a set of numbers.

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MODE Function in Excel

Returns the most frequently occurring value in a dataset.

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AND Function in Excel

Returns TRUE if all arguments are TRUE, FALSE if any argument is FALSE.

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OR Function in Excel

Returns TRUE if any argument is TRUE, FALSE if all arguments are FALSE.

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NOT Function in Excel

Reverses the logic of its argument - returns TRUE if argument is FALSE, FALSE if argument is TRUE.

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UPPER Function in Excel

Converts all letters in a text string to uppercase.

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LOWER Function in Excel

Converts all letters in a text string to lowercase.

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PROPER Function in Excel

Converts the first letter of each word to uppercase and remaining letters to lowercase.

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ROUND Function in Excel

Rounds a number to a specified number of digits.

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ROUNDUP Function in Excel

Rounds a number up, away from zero.

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ROUNDDOWN Function in Excel

Rounds a number down, toward zero.

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ABS Function in Excel

Returns the absolute value of a number (removes negative sign).

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IntermediateAdvanced Techniques

VLOOKUP Function in Excel

Searches for a value in the first column of a table array and returns a value in the same row from another column.

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XLOOKUP Function in Excel

A modern replacement for VLOOKUP, HLOOKUP, and LOOKUP. Searches a range or an array, and returns an item corresponding to the first match it finds.

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INDEX Function in Excel

Returns the value of an element in a table or an array, selected by the row and column number indexes.

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MATCH Function in Excel

Searches for a specified item in a range of cells, and then returns the relative position of that item in the range.

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TEXTJOIN Function in Excel

Combines the text from multiple ranges and/or strings, and includes a delimiter you specify between each text value that will be combined.

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MID Function in Excel

Returns a specific number of characters from a text string, starting at the position you specify.

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DATEDIF Function in Excel

Calculates the number of days, months, or years between two dates.

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NETWORKDAYS Function in Excel

Returns the number of whole working days between start_date and end_date.

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EOMONTH Function in Excel

Returns the serial number for the last day of the month that is the indicated number of months before or after start_date.

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RANK Function in Excel

Returns the rank of a number in a list of numbers.

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IFERROR Function in Excel

Returns a value you specify if a formula evaluates to an error; otherwise, returns the result of the formula.

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UNIQUE Function in Excel

Returns a list of unique values in a list or range.

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SORT Function in Excel

Sorts the contents of a range or array.

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FILTER Function in Excel

Filters a range of data based on criteria you define.

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STDEV Function in Excel

Calculates standard deviation based on a sample of a population.

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VAR Function in Excel

Calculates variance based on a sample of a population.

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CHOOSE Function in Excel

Returns a value from a list of values based on an index number.

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XOR Function in Excel

Returns TRUE if an odd number of arguments are TRUE, FALSE if an even number are TRUE.

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IFS Function in Excel

Checks multiple conditions and returns a value corresponding to the first TRUE condition.

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SUBSTITUTE Function in Excel

Replaces existing text with new text in a text string.

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FIND Function in Excel

Returns the position of one text string within another text string (case-sensitive).

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SEARCH Function in Excel

Returns the position of one text string within another (case-insensitive, supports wildcards).

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MOD Function in Excel

Returns the remainder after a number is divided by a divisor.

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