INDEX and MATCH functions in Excel

I do a lot of work in Excel and I’ve used the INDEX and MATCH functions together instead of a VLOOKUP or HLOOKUP but always stumble through that process. I wanted to write a simple guide to help me in the future.

ID Item Color
1 Shoes Black
2 Socks Brown
3 Pants Blue
4 Shirts Red

Pretending for a minute that is our spreadsheet, let’s look at the functions in turn.

INDEX

Here is the function syntax: INDEX(array, row_num, [column_num]). Here is how I think of it and use it: INDEX(some rectangular shaped data set in excel, row number, column number)

Using the example, =INDEX(A1:C5,2,3) would return “Black” because that’s the data in the second row and third column of the rectangular shaped data set A1:c5.

MATCH

Here is the function syntax: MATCH(lookup_value, lookup_array, [match_type]) Here is how I think of it and use it: MATCH(what are you looking for, what rectangle of data should we search?, what kind of match are you looking for?)

Using the example, =MATCH(“Socks”,B1:B5,FALSE) would return “3” because “Socks” is in the 3rd column of that array.

CC image - https://flic.kr/p/nK7kRW
CC image – https://flic.kr/p/nK7kRW

INDEX and MATCH together!

Those functions are pretty useless on their own…but together they are awesome. Let’s say I want to know the color of the item with an ID of “4” – using these functions I can retrieve that data!

=INDEX(the column that has the information I want, MATCH(thing I’m looking for, column that has the data I’m starting with, FALSE))

Using the example, =INDEX(C1:C5,MATCH(“Shoes”,B1:B5)) would return “Black” because that is the data point at the intersection of column C and the row that contains the data point shoes.

Question to help the process:

  • What column has the information you want?
  • What data are you starting with?
  • What column has the data you are starting with?