How to Use the PRODUCT function to multiply values in Excel
Normally values in a worksheet are multiplied with the * operator in formulas like =A1*B1. However, Excel also provides a useful function to do the same calculation. Use the PRODUCT function to multiply all the given numbers and return the product. Here is the syntax tha is used:
PRODUCT(number1, number2, …)
number1, number2, …: From 1 to 30 numbers to be multiplied. As an example, calculate a price reduction with the PRODUCT function using a standard factor in cell D1.
To calculate the price reduction:
- In cells A2:A10 list some prices.
- Enter in cell D1 the value 0.15 to calculate a 15% price reduction.
- Select cells B2:B10 and type the following formula: =PRODUCT(A2,$D$1).
- Press Ctrl+Enter.
This tip is compatible with Excel 97, 2000, 2003 and 2007.

Jon Peltier
What makes PRODUCT any better than the * operator? It takes longer to type, it’s less intuitive, and it’s less easy to read.
October 21st, 2008 at 10:36 pm