How to Read Excel Formulas Step by Step

Start with the equals sign

A formula starts with =. Everything after it tells Excel or Google Sheets to return a result. =A2+B2 adds two cells; =SUM(A2:A10) adds the numeric values in a range. Both are formulas, but only the second uses a named function.

Identify the function name and its arguments

In =IF(C2>=70,"Pass","Review"), IF is the function. Inside parentheses are three inputs: the condition, the result when true, and the result when false. Commas separate arguments in many locales; semicolons are used in others.

Read cell references carefully

A2 is a relative reference. $A$2 is an absolute reference that remains fixed when copied. A$2 fixes the row while allowing the column to change. $A2 fixes the column while allowing the row to change.

Understand ranges and sheet names

A colon means “through.” A2:A12 refers to eleven cells in column A. Sheet2!A2:B20 refers to a range on Sheet2. If a sheet name contains spaces, surround it with single quotes: 'Sales Report'!A2:A20.

Learn common operators

• +, -, *, / perform arithmetic.
• >, <, >=, <=, and = compare values.
• <> means “not equal.”
• & joins text expressions.

Work from the inside out

For nested functions like =IF(AND(B2="Active",C2>=70),"Pass","Review"), evaluate AND first, then interpret the IF result. Use temporary helper cells if necessary; a simple, auditable workbook is often better than a formula no one can maintain.

Test an example yourself

1. Put 82 in C2 and type =IF(C2>=70,"Pass","Review") in D2.
2. Change C2 to 66 and observe the result.
3. Use the formula explainer to break down the same statement.
4. Replace the text outputs with values meaningful to your workflow.

What to learn next

Practice SUM, AVERAGE, COUNTIF, SUMIF, and basic lookup functions. Once those patterns feel natural, explore multiple-criteria formulas and error diagnosis. The goal is not to memorize every function; it is to recognize what question your spreadsheet is trying to answer.