You can put in row 4:

=ARRAYFORMULA(B2:Z2*B3:Z3)

This will expand to the whole row. Adapt B and Z to the columns you need!

If you can omit row 3, you can just use:

=ARRAYFORMULA(B2:Z2*0.09)

Answer from Martín on Stack Overflow
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Statology
statology.org › home › google sheets: how to multiply column by a constant
Google Sheets: How to Multiply Column by a Constant
February 4, 2022 - Then click and drag down to all of the remaining cells in column B: All of the values in column B are equal to 5 times the values in column A. ... To multiply by a different constant, simply change the value used in cell B2.
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SimpleSheets
simplesheets.co › blog › how-to-multiply-in-google-sheets
How to Multiply in Google Sheets: 8 Formula Methods
January 21, 2026 - Use a helper column with =B2*$F$1, copy it, then paste back over the original column with Edit > Paste special > Values only, and delete the helper column afterwards. One of the cells contains text rather than a number, usually because a unit or a currency symbol was typed in by hand. Remove the characters so the cell holds only the number, then apply currency or unit formatting instead of typing it. You get 0, because Google Sheets treats an empty cell as zero in a multiplication.
Discussions

How to multiply an entire column by the value in a single cell? (I've included a pic to show what I mean) Is there an easier way than writing a formula in each individual cell? I've tried copying the formula from one but it only multiplies it by the cell above it, which isn't what I want.
Assuming your values for seafood (1, 2, 1 etc) are in A2:A, then in B2 use the formula =arrayformula(if(A2:A="",,A2:A*$B$1)) More on reddit.com
🌐 r/sheets
4
5
June 28, 2021
How to multiply row by constant - google sheets - Stack Overflow
in Google Sheets. Row 1 are all labels. Column 1 are all labels. Both are locked. Row 2 has unique quantities. Row 3 is a constant of 0.09. I want to multiply all of row 2 by row 3, and have all More on stackoverflow.com
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how to multiply a row of numbers with a constant row, then sum across - Google Docs Editors Community
Skip to main content · Google Docs Editors Help · Sign in · Google Help · Help Center · Community · Google Docs Editors · Terms of Service · Submit feedback · Send feedback on More on support.google.com
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January 29, 2024
Possible to multiply one column in a query by a constant but not others?
Not within a single QUERY(). You can multiply an entire column by a constant in the SELECT clause but not conditionally row by row. More on reddit.com
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3
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May 14, 2024
People also ask

How can I multiply numbers from different sheets in Google Sheets?
To multiply numbers from different sheets, reference the sheet name and cell address in your formula. For example, if you want to multiply the value in cell A1 of Sheet1 by the value in cell A1 of Sheet2, you would use the formula =Sheet1!A1*Sheet2!A1.
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superjoin.ai
superjoin.ai › home › blog › how to multiply in google sheets: a comprehensive guide
How to Multiply in Google Sheets: A Comprehensive Guide | Superjoin
What is the multiply formula in Google Sheets?
It is the asterisk. Type an equals sign, the first value, an asterisk, then the second value, for example =A1*B1. There is also a named function, =MULTIPLY(A1, B1), which does exactly the same thing but accepts only two arguments.
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simplesheets.co
simplesheets.co › blog › how-to-multiply-in-google-sheets
How to Multiply in Google Sheets: 8 Formula Methods
How do I multiply values based on a condition in Google Sheets?
You can use the SUMPRODUCT function for conditional multiplication. For instance, to multiply values in the range A1 that are greater than 5, you can use the formula =SUMPRODUCT((A1:A10>5)*A1:A10).
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superjoin.ai
superjoin.ai › home › blog › how to multiply in google sheets: a comprehensive guide
How to Multiply in Google Sheets: A Comprehensive Guide | Superjoin
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Google Support
support.google.com › docs › thread › 41311742 › replace-column-values-by-multiplying-them-by-constant-replacing-in-place-not-creating-new-column
Replace column values by multiplying them by constant (replacing in place / not creating new column) - Google Docs Editors Community
April 20, 2020 - Skip to main content · Google Docs Editors Help · Sign in · Google Help · Help Center · Community · Google Docs Editors · Terms of Service · Submit feedback · Send feedback on
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Superjoin
superjoin.ai › home › blog › how to multiply in google sheets: a comprehensive guide
How to Multiply in Google Sheets: A Comprehensive Guide | Superjoin
June 10, 2024 - Type =PRODUCT(. Enter the first value or cell range (e.g., A1:A5). Type a comma ,. Enter the second value or cell range. Continue adding more values or cell ranges, separated by commas, if needed.
Find elsewhere
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Excel Insider
excelinsider.com › home › our blog › google sheets formulas › how to multiply column by a constant in google sheets
How to Multiply Column by a Constant in Google Sheets - Excel Insider
April 10, 2026 - ➤ Now, click on cell C2 to enter the formula for the first item. ➤ Type this formula: ... To multiply values by a constant using a separate cell, start by entering the constant in a blank cell, for example, enter 1.08 in cell D2.
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Better Analyst
betteranalyst.com › home › google sheets formulas › how to multiply in google sheets
How to Multiply in Google Sheets | Formulas
... Use the asterisk operator to multiply two cells: =A2*B2. Use PRODUCT for a range, and lock a fixed rate with dollar signs such as =A2*$F$1. ... Multiplies the value in A2 by the value in B2. ... Multiplies every numeric value in the range. ... Keeps the rate in F1 fixed when the formula ...
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Inside The Web
insidetheweb.com › home › office › google sheets › how to multiply in google sheets
How to Multiply in Google Sheets
June 16, 2023 - You wouldn’t have to enter Asterisk operator manually to multiply numbers. If you have to multiply only two numbers or columns in Google Sheets, you could use the MULTIPLY function.
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Arab Psychology
scales.arabpsychology.com › home › how to easily multiply a column by a percentage in google sheets
How To Easily Multiply A Column By A Percentage In Google Sheets
December 1, 2025 - Within B2, enter the formula that multiplies the value in A2 by the decimal equivalent of 50%. This formula sets the precedent for all subsequent rows: ... Once the formula is entered, cell B2 will display the result, which is 5. This immediate result confirms that the syntax is correct and the underlying mathematical logic is sound. We are now ready to efficiently apply this logic to the rest of the column using the built-in automation features of Google Sheets.
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Spreadsheetsecrets
spreadsheetsecrets.com › blog › how-to-multiply-in-google-sheets
How to Multiply in Google Sheets: A Guide
To multiply three numbers in Google Sheets, you can use a simple formula. First, select the cell where you want the result to appear. Then, type in = followed by the three numbers you want to multiply, separated by asterisks.
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Sheetgo
sheetgo.com › home › how to use the sumproduct function in google sheets
How to use the SUMPRODUCT function in Google Sheets - Sheetgo
June 16, 2025 - Using the SUMPRODUCT function, I can quickly multiply all three columns together for each item, then add up the total. I’ve done this by typing =sumproduct(B2:B6,C2:C6,D2:D6).
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DataCamp
datacamp.com › tutorial › how-to-multiply-in-excel
Multiply in Excel: Multiply Cells, Columns, Rows, and More | DataCamp
February 12, 2025 - Learn to subtract cells, columns, rows, and more in Excel using the minus sign, cell references, absolute references, and even by using the `SUM()` or SUMPRODUCT() functions. ... Learn how to apply operations like add, subtract, divide, multiply, and a lot more in Google Spreadsheets with the help of an actual dataset.
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Ok Sheets
oksheets.com › multiply-values
4 Ways to Multiply Values in Google Sheets | Ok Sheets
This formula will multiply the value in cell A2 by the value in cell B2. You can then copy and paste down the formula to provide results for each row. ... You could use the ARRAYFORMULA function like in the above formula to return an array of results. Ensure the ranges are of the same length. This will prevent your syntax from returning an error. ... The PRODUCT function is another way you can use to multiply cells in Google Sheets.
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Excel Insider
excelinsider.com › home › our blog › google sheets formulas › how to multiply columns in google sheets (3 simple ways)
How to Multiply Columns in Google Sheets (3 Simple Ways) - Excel Insider
September 2, 2025 - If you want to multiply two entire columns without entering the formula row by row, you can use the ARRAYFORMULA function. This method automatically applies multiplication to each row in the selected range. ... ➤ Open your dataset in Google Sheets where you want to multiply columns.
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Quora
quora.com › What-is-the-multiply-function-in-Google-Sheets
What is the multiply function in Google Sheets? - Quora
Answer: the multiply function is the same as excel there is two following method that can you use: 1. use asterisk sign (*) 2. Or you can use Product Formula in the Product formula, you can use an individual cell just like the above picture or you can directly use like =product(C2:D2) If you w...
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Google Support
support.google.com › docs › thread › 256035270 › how-to-multiply-a-row-of-numbers-with-a-constant-row-then-sum-across
how to multiply a row of numbers with a constant row, then sum across - Google Docs Editors Community
January 29, 2024 - Skip to main content · Google Docs Editors Help · Sign in · Google Help · Help Center · Community · Google Docs Editors · Terms of Service · Submit feedback · Send feedback on
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Sheetaki
sheetaki.com › home › how to multiply column by a constant in excel
How to Multiply Column by a Constant in Excel - Sheetaki
September 15, 2023 - So there are three ways we can go about doing this task. Firstly, we can perform the formula in Excel. Secondly, we can utilize absolute reference when doing the calculations. Thirdly, we can also use the PRODUCT function to multiply the column by a constant.
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The Bricks
thebricks.com › home › resources › how to keep a cell constant in google sheets
How to Keep a Cell Constant in Google Sheets
April 22, 2025 - By writing the formula as =C2*$E$1, you are telling Google Sheets, "No matter where you copy this formula, always, always multiply by the value in cell E1." Create stunning charts, tables & insights from your data with AI · Drop in a spreadsheet or CSV and get polished, presentation-ready visuals in seconds. No expertise required.Get started for free → · Now that you understand the concept, let's look at the two easy methods to make a cell reference constant.