What is index number in Google Sheets?
Index Number describes how a formula or selection points at cells, columns, rows, or sheets in Google Sheets. References are the addresses inside formulas and the blue boxes you see when editing. Getting references right prevents #REF! errors and broken copies.
When to use it
Use index number when writing or auditing formulas that must point at the right cells after copy, fill, or sheet changes.
When to skip it
Skip worrying about index number when a named range, QUERY, or pivot already expresses the logic more clearly.
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Read post →Beginners Guide to Using Index, Row, and Column | Simply useful Google Sheets Formulas
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Read post →Related terms
Absolute reference ($)
Absolute references lock row, column, or both with dollar signs so a formula keeps pointing at the same cell when you copy it. $A$1 locks both axes. A$1 locks the row. $A1 locks the column. Mixed locks are how tax rates stay in one settings cell while a formula fills down a thousand rows.
Read guide →Open range reference
An open range reference points at an entire row, column, or unbounded slice such as B:B or 2:2 instead of a fixed rectangle like B2:B500. Formulas with open ranges include every cell in that line, which is convenient for growing tables but expensive and risky when stray values live far below your data.
Read guide →Named range
A named range gives a block of cells a readable label like Revenue or ValidStatuses instead of only B2:B500. Define names from Data > Named ranges. Formulas, charts, pivot tables, and validation rules can reference the name, which makes models easier to audit and safer when rows shift inside the named block.
Read guide →Google Sheets formulas
A formula is an instruction in a cell that calculates a result from other cells, ranges, or built-in functions. Every formula begins with =. When inputs change, the sheet recalculates so dashboards and models stay live without manual copy-paste. Formulas are the default automation layer inside the grid before Apps Script or add-ons.
Read guide →Done reading about index number?
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