HLOOKUP function in Google Sheets - Cell-by-Cell Formula Trace

Sample Data

This table shows products in the first row, their prices in the second row, and stock quantities in the third row.

Cell	Value
A1	Product
B1	Pen
C1	Pencil
D1	Eraser
E1	Marker
A2	Price
B2	1.5
C2	0.5
D2	0.75
E2	2
A3	Stock
B3	100
C3	200
D3	150
E3	80

Formula Trace

=HLOOKUP("Pencil", A1:E3, 2, FALSE)

Step 1: HLOOKUP("Pencil", A1:E3, 2, FALSE)

Step 2: Search row 1: ["Product", "Pen", "Pencil", "Eraser", "Marker"]

Step 3: Return value from row 2, column 3 (C2)

Cell Reference Map

    A       B       C       D       E
1 |Product | Pen   | Pencil| Eraser| Marker|
2 | Price  | 1.5   | 0.5   | 0.75  | 2.0   |
3 | Stock  | 100   | 200   | 150   | 80    |

Formula looks in row 1 (A1:E1) to find "Pencil" and returns value from row 2 in same column (C2).

The formula searches the first row (A1:E1) for "Pencil" and then returns the value from the second row in the same column.

Result

    A       B       C       D       E
1 |Product | Pen   | Pencil| Eraser| Marker|
2 | Price  | 1.5   | 0.5   | 0.75  | 2.0   |
3 | Stock  | 100   | 200   | 150   | 80    |

F1| 0.5  <- Result of =HLOOKUP("Pencil", A1:E3, 2, FALSE)

The formula returns 0.5, which is the price of "Pencil" found in the second row under the "Pencil" column.

Sheet Trace Quiz - 3 Questions

What does the HLOOKUP formula search for in the first row?

A "Pencil"

B The price values

C The stock quantities

D "Price"

Key Result

HLOOKUP searches the first row of a range for a value and returns the value from a specified row in the same column.

Practice

1. What does the HLOOKUP function do in Google Sheets?

easy

A. Searches for a value in the first column and returns a value from a specified column to the right

B. Searches for a value in the top row and returns a value from a specified row below

C. Adds all numbers in a horizontal range

D. Sorts data horizontally in ascending order

Solution

1. Step 1: Understand HLOOKUP's search direction

   HLOOKUP searches horizontally in the top row of a range, not vertically.

2. Step 2: Understand the return value

   It returns a value from a specified row below the found column, matching the search value.

3. Final Answer:

   Searches for a value in the top row and returns a value from a specified row below -> Option B

4. Quick Check:

   HLOOKUP = horizontal search and return [OK]

Hint: HLOOKUP looks across the top row, not down a column [OK]

Common Mistakes:

• Confusing HLOOKUP with VLOOKUP
• Thinking it searches vertically
• Assuming it sums values

2. Which of the following is the correct syntax for the HLOOKUP function?

easy

A. HLOOKUP(search_key, range, row_index, [is_sorted])

B. HLOOKUP(range, search_key, row_index, [is_sorted])

C. HLOOKUP(search_key, row_index, range, [is_sorted])

D. HLOOKUP(row_index, search_key, range, [is_sorted])

Solution

1. Step 1: Recall HLOOKUP syntax order

   The correct order is search_key first, then range, then row_index, and optional is_sorted last.

2. Step 2: Match options to syntax

   HLOOKUP(search_key, range, row_index, [is_sorted]) matches this order exactly, others mix parameters incorrectly.

3. Final Answer:

   HLOOKUP(search_key, range, row_index, [is_sorted]) -> Option A

4. Quick Check:

   Syntax order = search_key, range, row_index, is_sorted [OK]

Hint: Remember: search_key, range, row_index, then is_sorted [OK]

Common Mistakes:

• Swapping range and search_key positions
• Putting row_index before range
• Omitting optional is_sorted parameter

3. Given the table below in cells A1:D3:

| A   | B    | C    | D    |
|-----|------|------|------|
| ID  | 101  | 102  | 103  |
| Name| John | Mary | Alex |
| Age | 25   | 30   | 22   |

What is the result of =HLOOKUP(102, A1:D3, 3, FALSE)?

medium

A. 22

B. Mary

C. 30

D. 102

Solution

1. Step 1: Locate search_key 102 in top row

   Top row is A1:D1: ID, 101, 102, 103. The value 102 is found in cell C1 (3rd column).

2. Step 2: Return value from row 3 in the same column

   Row 3 is A3:D3: Age, 25, 30, 22. The 3rd column value is 30.

3. Final Answer:

   30 -> Option C

4. Quick Check:

   HLOOKUP finds 102, returns 30 [OK]

Hint: Find value in top row, then pick from given row below [OK]

Common Mistakes:

• Returning value from wrong row
• Confusing columns and rows
• Using approximate match instead of exact

4. You wrote the formula =HLOOKUP(105, A1:D3, 2, FALSE) but it returns #N/A. What is the likely cause?

medium

A. Row index 2 is invalid

B. You used TRUE instead of FALSE for exact match

C. Range A1:D3 is empty

D. 105 is not found exactly in the top row

Solution

1. Step 1: Check if 105 exists in top row

   Since 105 is not present in the top row of A1:D1, exact match fails.

2. Step 2: Understand #N/A error meaning

   #N/A means the lookup value was not found when exact match (FALSE) is used.

3. Final Answer:

   105 is not found exactly in the top row -> Option D

4. Quick Check:

   #N/A means no exact match found [OK]

Hint: Exact match needs value present in top row [OK]

Common Mistakes:

• Assuming approximate match works with FALSE
• Using wrong row index
• Ignoring #N/A meaning

5. You have this table in A1:E3:

| A    | B     | C     | D     | E     |
|------|-------|-------|-------|-------|
| Code | A101  | A102  | A103  | A104  |
| Qty  | 10    | 15    | 20    | 25    |
| Price| 5.00  | 7.50  | 6.00  | 8.00  |

You want to find the price of code A103 using HLOOKUP. Which formula correctly returns the price?

hard

A. =HLOOKUP("A103", A1:E3, 3, FALSE)

B. =HLOOKUP("A103", A1:E3, 2, FALSE)

C. =HLOOKUP("A103", A1:E3, 4, FALSE)

D. =HLOOKUP("A103", A2:E3, 3, FALSE)

Solution

1. Step 1: Identify the row number for Price

   Price is in row 3 of the range A1:E3.

2. Step 2: Use HLOOKUP with correct row index and exact match

   Formula should search for "A103" in top row and return value from row 3, with FALSE for exact match.

3. Final Answer:

   =HLOOKUP("A103", A1:E3, 3, FALSE) -> Option A

4. Quick Check:

   Price is row 3, use row_index=3 [OK]

Hint: Match code in top row, return price from 3rd row [OK]

Common Mistakes:

• Using wrong row index for price
• Using incomplete range missing header row
• Confusing quantity row with price row