SUM in Excel: add up a column in 5 seconds

By Srini Vanamala / September 28, 2026 / Formulas & Functions
SUM in Excel: add up a column in 5 seconds

The fastest way to add a column of numbers is =SUM(range).

The formula

=SUM(B2:B20)

Click the cell under your numbers, type the formula, press Enter.

Even faster

Click the cell under the numbers and press Alt + =. Excel writes the SUM formula for you.

Common mistake

If the answer is 0, your numbers are probably stored as text. Select them, press Ctrl+1, set the format to Number, then re-enter one value.

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Srini Vanamala

20 years with spreadsheets and enterprise systems. Writes one short, plain-English Excel lesson a day. Got an Excel question? learnexceleasycom@gmail.com

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