# Functions

Discover how functions in Excel help you save time. If you are new to functions in Excel, we recommend you to read our introduction to Formulas and Functions first.

1 Count and Sum: The most used functions in Excel are the functions that count and sum. You can count and sum based on one criteria or multiple criteria.

2 Logical: Learn how to use Excel's logical functions, such as IF, AND, OR and NOT.

3 Cell References: Cell references in Excel are very important. Understand the difference between relative, absolute and mixed reference, and you are on your way to success.

4 Date & Time: To enter a date, use the "/" or "-" characters. To enter a time, use the ":" (colon).

5 Text: Excel has many functions to offer when it comes to manipulating text strings.

6 Lookup & Reference: Learn all about Excel's lookup & reference functions, such as VLOOKUP, HLOOKUP, MATCH, INDEX and CHOOSE.

7 Financial: This chapter illustrates Excel's most popular financial functions.

8 Statistical: An overview of some very useful statistical functions in Excel.

9 Round: This chapter illustrates three functions to round numbers in Excel. ROUND, ROUNDUP and ROUNDDOWN.

10 Formula Errors: This chapter teaches you how to deal with some common formula errors.

11 Array Formulas: This chapter helps you understand array formulas in Excel.

## Functions+

Become an Excel pro! You can find related examples and functions on the right side of each chapterat the bottom of each chapter. Below you can find a complete overview.

## Best of Functions+

Join more than 1 million monthly learners. Explore the best of what we offer, master new Excel functions and become great at Excel. Happy learning!

1 Vlookup: The VLOOKUP function is one of the most popular functions in Excel. This page contains many easy to follow VLOOKUP examples.

2 Percent Change: The percent change formula is used very often in Excel. For example, to calculate the Monthly Change and Total Change.

3 Loan Amortization Schedule: This example teaches you how to create a loan amortization schedule in Excel.

4 Random Numbers: Excel has two very useful functions when it comes to generating random numbers. RAND and RANDBETWEEN.

5 If: The IF function is one of the most used functions in Excel. This page contains many easy to follow IF examples.

6 Standard Deviation: This page explains how to calculate the standard deviation based on the entire population using the STDEV.P function in Excel and how to estimate the standard deviation based on a sample using the STDEV.S function in Excel.

7 Count Unique Values: This example shows you how to create an array formula that counts unique values.

8 Countif: The powerful COUNTIF function in Excel counts cells based on one criteria. This page contains many easy to follow COUNTIF examples.

9 Offset: The OFFSET function in Excel returns a cell or range of cells that is a specified number of rows and columns from a cell or range of cells.

10 Compare Two Columns: To compare two columns, use IF, ISERROR and MATCH in Excel. You can display the duplicates or the unique values.

11 Compound Interest: What's compound interest and what's the formula for compound interest in Excel? This example gives you the answers to these questions.

12 Sumif: The powerful SUMIF function in Excel sums cells based on one criteria. This page contains many easy to follow SUMIF examples.

13 Concatenate: Use CONCATENATE, CONCAT, TEXTJOIN or the & operator in Excel to concatenate (join) two or more text strings.

14 Weighted Average: To calculate a weighted average in Excel, simply use SUMPRODUCT and SUM.

15 Index and Match: Use INDEX and MATCH in Excel and impress your boss. Instead of using VLOOKUP, use INDEX and MATCH. To perform advanced lookups, you'll need INDEX and MATCH.

16 Sumproduct: To calculate the sum of the products of corresponding numbers in one or more ranges, use Excel's powerful SUMPRODUCT function.

17 Contains Specific Text: To check if a cell contains specific text, use ISNUMBER and SEARCH in Excel. There's no CONTAINS function in Excel.

18 Pmt: The PMT function in Excel calculates the payment for a loan based on constant payments and a constant interest rate. This page contains many easy to follow PMT examples.

19 Calculate Age: To calculate the age of a person in Excel, use DATEDIF and TODAY. The DATEDIF function has three arguments.

20 Indirect: Use the INDIRECT function in Excel to convert a text string into a valid reference. You can use the & operator to create text strings.

21 CAGR: There's no CAGR function in Excel. However, simply use the RRI function in Excel to calculate the compound annual growth rate (CAGR) of an investment over a period of years.

22 If Cell is Blank: Use the IF function and an empty string in Excel to check if a cell is blank. Use IF and ISBLANK to produce the exact same result.

23 Average: The AVERAGE function in Excel calculates the average (arithmetic mean) of a group of numbers.

24 Substring: There's no SUBSTRING function in Excel. Use MID, LEFT, RIGHT, FIND, LEN, SUBSTITUTE, REPT, TRIM and MAX in Excel to extract substrings.

25 Sum: Use the SUM function in Excel to sum a range of cells, an entire column or non-contiguous cells.

26 Remove Spaces: The TRIM function in Excel removes leading spaces, extra spaces and trailing spaces. Use the SUBSTITUTE function to remove all spaces or non-breaking spaces.

27 Comparison Operators: Use comparison operators in Excel to check if two values are equal to each other, if one value is greater than another value, etc.

28 NPV: The correct NPV formula in Excel uses the NPV function to calculate the present value of a series of future cash flows and subtracts the initial investment.

29 AverageIf: The AVERAGEIF function in Excel calculates the average of cells that meet one criteria. AVERAGEIFS calculates the average of cells that meet multiple criteria.

30 Xlookup: If you have Excel 365 or Excel 2021, use XLOOKUP instead of VLOOKUP. The XLOOKUP function is easier to use and has some additional advantages.

31 Hyperlinks: Use the 'Insert Hyperlink' dialog box in Excel to create a hyperlink to an existing file, a web page or a place in this document. You can also use the HYPERLINK function.

32 Forecast: The FORECAST.LINEAR function in Excel predicts a future value along a linear trend. The FORECAST.ETS function in Excel predicts a future value using Exponential Triple Smoothing, which takes into account seasonality.

33 Add or Subtract Time: Use the TIME function in Excel to add or subtract hours, minutes and seconds. To add up times in Excel, simply use the SUM function.

34 Copy a Formula: Simply use CTRL + c and CTRL + v to copy and paste a formula in Excel. Use the fill handle in Excel to quickly copy a formula to other cells.

35 Time Difference: Calculating the difference between two times in Excel can be tricky. Times are handled internally as numbers between 0 and 1.

36 IRR: Use the IRR function in Excel to calculate a project's internal rate of return. The internal rate of return is the discount rate that makes the net present value equal to zero.

37 Not Equal To: In Excel, <> means not equal to. The <> operator in Excel checks if two values are not equal to each other. Let's take a look at a few examples.

38 Today's date: To enter today's date in Excel, use the TODAY function. To enter the current date and time, use the NOW function.

39 Absolute Reference: An absolute reference in Excel refers to a fixed location on a worksheet. When you copy a formula, an absolute reference never changes.

40 Running Total: This page teaches you how to create a running total (cumulative sum) in Excel. A running total changes each time new data is added to a list.

41 Rank: The RANK function in Excel returns the rank of a number in a list of numbers. Use RANK.AVG to return the average rank if more than one number has the same rank.

42 Weekdays: Use WEEKDAY, NETWORKDAYS and WORKDAY to create cool weekday formulas in Excel. Are you ready to improve your Excel skills?

43 Last Day of the Month: To get the date of the last day of the month in Excel, use the EOMONTH (End of Month) function.

44 DateDif: To calculate the number of days, months or years between two dates in Excel, use the DATEDIF function. The DATEDIF function has three arguments.

45 Frequency: The FREQUENCY function in Excel calculates how often values occur within the ranges you specify in a bin table.

46 Two-column Lookup: This example teaches you how to perform a two-column lookup in Excel.

47 Circular Reference: A circular reference in Excel occurs when a formula directly or indirectly refers to its own cell. This is not possible.

48 Named Range: Create a named range or a named constant and use these names in your Excel formulas. This way you can make your formulas easier to understand.

49 Text to Columns: To separate the contents of one Excel cell into separate columns, you can use the 'Convert Text to Columns Wizard'.

50 Dynamic Arrays: Dynamic array formulas, entered into a single cell, fill multiple cells. This behavior in Excel 365/2021 is called spilling.

Check out all 300 examples.