Use the formula `=A1*B1`
Use the multiplication operator `*`
Multiply multiple cells with `=A1*B1*C1`
Multiply by a constant with `=A1*10`
Use absolute references like `=$A$1*B1`
Copy the formula down or across with fill handle
Use `=PRODUCT(A1:A5)` to multiply a range
Use `=PRODUCT(A1:A5,B1:B5)` to multiply multiple ranges
Use `Paste Special` > `Multiply` to multiply values by a number
Use `AutoSum` dropdown if needed for quick access to `PRODUCT` functions