How it works.
HLOOKUP is the horizontal cousin of VLOOKUP. It searches the first row of a horizontal table range for a query value, locates the column index of that match, and then retrieves the value in the specified row index of that column.
💡 In simple terms.
Searches horizontally across the first row of a table for a query value, then retrieves matching info from a row number you choose.
"Think of HLOOKUP like scanning a horizontal calendar. You search across the top row for the month, then look down to find your appointment."
Formula syntax.
Standard Excel Notation=HLOOKUP(lookup_value, table_array, row_index_num, [range_lookup])[like_this] are optional; all other arguments are required.Formula arguments.
Every parameter accepted by the HLOOKUP function is detailed below.
The value to be found in the first row of the table.
Example value:D2The range of cells in which you search for the lookup_value and the return value.
Example value:A1:C2The row number in table_array from which the matching value will be returned (row 1 is the top row).
Example value:2TRUE = Approximate match, FALSE = Exact match. Set to FALSE for exact strings; set to TRUE for numerical scale brackets.
Default: TRUESimple example.
Step-by-Step ScenarioHorizontal Tax Rate Lookup
Retrieve tax rates horizontally based on the income threshold in D2 (using range_lookup = TRUE to match the tax bracket scale).
| 10000 | 50000 | 100000 | Search Income | Tax Rate |
|---|---|---|---|---|
| 0.10 | 0.20 | 0.30 | 75000 | — |
=HLOOKUP(D2, A1:C2, 2, TRUE)Evaluates HLOOKUP over the sample table cells, placing the verified output in cell E2.
Formula generator.
Full Generator WizardCustomize the argument fields below to generate a tailored HLOOKUP formula ready to paste directly into your worksheet.
=HLOOKUP()Expected result behavior.
Returns "Calculated output" based on sample evaluation criteria and active cell references.
Best Practices
- Ensure the values in the first row of table_array are sorted in ascending order if range_lookup is set to TRUE.
- Just like VLOOKUP, HLOOKUP only searches top-to-bottom. Use XLOOKUP if you need more flexible searches.
Common Mistakes
- If row_index_num is less than 1, HLOOKUP returns a #VALUE! error. If it is greater than the number of rows in table_array, it returns a #REF! error.
Platform & version compatibility.
Verified platform compatibility matrix based on actual spreadsheet calculation engine specifications.
Core standard function supported across all modern and legacy Microsoft Excel versions (365, 2021, 2019, 2016, 2013, 2010), as well as Excel for the Web and Mac.
100% compatible with Google Sheets. Uses identical argument order, data types, and standard calculation logic.
Frequently asked questions.
Technical Q&ACan I use HLOOKUP across different worksheets in Excel?↓
Yes. You can reference cells located on other sheets by including the sheet name followed by an exclamation mark, for example: =HLOOKUP(Sheet2!A2:A10). If the sheet name contains spaces, enclose it in single quotes: ='Q1 Report'!A2:A10.
What is the most common reason for errors in HLOOKUP?↓
If row_index_num is less than 1, HLOOKUP returns a #VALUE! error. If it is greater than the number of rows in table_array, it returns a #REF! error.
Does HLOOKUP work identically in Google Sheets?↓
Yes, HLOOKUP is supported in both Microsoft Excel and Google Sheets with standard evaluation behavior.