Excel lookup function

Excel has three functions to look up information within the worksheet or other worksheets, LOOKUP, VLOOKUP and HLOOKUP.  All three can be found in the FORMULA Tab in the Ribbon under Lookup & Reference as highlighted.

Excel lookup function

The LOOKUP Function should be used when you are searching a single row or column for one piece of data in order to retrieve another piece of information within the same position. For example, you know the stock code but want to know what the price of the stock is. You’d use LOOKUP to locate the stock code and retrieve the price.

The VLOOKUP or Vertical Lookup should be used when you need to find data within the worksheet by row. Similar to LOOKUP you would use this to search by stock code to find the price by searching across the row. HLOOKUP or Horizontal Lookup is used when you want to search down columns for information, it starts by searching the first row for the value and then moves down the column to find the second value. Let’s look at the three lookup functions to see which is best during certain circumstances.read more information about logical operators by clicking here

LOOKUP Function

When LOOKUP is selected from the Lookup & Reference Button a dialog box will appear asking which argument you will be using Vector or Array.

Excel lookup function

Vector is recommended when using the LOOKUP Function. If you would like to use Array it is strongly recommended you use the VLOOKUP or HLOOKUP Functions instead. The Vector form searches a specific vector (either one row or one column range) for a value and then returns a value from that same position in a different vector.  The formula for the function is

=LOOKUP(lookup_value,lookup_vector,return_vector)

Excel lookup function

Searching down Columns

Example 1: Find the Code for “Property”

Lookup Value = Property

Lookup Vector = Column A

Return Vector = Column B

=LOOKUP(“Property”,A2:A20,B2:B20)

Example 2: What type of Account is Code 600

Lookup Value = 600

Lookup Vector = Column B

Return Vector = Column C

=LOOKUP(600,B2:B20,C2:C20)

Excel lookup function

Example 1: Who didn’t have any sales during Quarter 1?

Lookup Value = …