仕組みと動作原理
ARRAYFORMULA関数はExcel業務を効率化する代表的な関数です。Enables array calculations across entire columns in Google Sheets. 複雑な集計や参照処理を簡素化し、データ分析の精度と生産性を飛躍的に高めます。
構文.
標準Excel表記法=ARRAYFORMULA(array_formula)引数一覧.
この関数で指定できるすべての引数について詳しく解説します。
A range or mathematical expression using ranges.
指定例:A2:A5 * B2:B5具体的な計算例
ステップ別の実務シナリオAutomated Line Totals
Calculate Total = Units * Price across multiple rows at once.
| Units | Unit Price | Line Total |
|---|---|---|
| 10 | 20 | — |
| 5 | 50 | — |
| 8 | 15 | — |
=ARRAYFORMULA(A2:A4 * B2:B4)Evaluates ARRAYFORMULA over the sample table cells, placing the verified output in cell C2.
数式ジェネレーター
ウィザードを開く引数を入力するだけで、シートにそのまま貼り付けて使える数式を作成できます。
=ARRAYFORMULA()出力される値の特性
Returns number 200 based on sample evaluation criteria and active cell references.
実務上のベストプラクティス
- Combine with IF(A2:A="", "", ...) to automatically calculate incoming Google Form rows.
よくあるミスと注意点
- Specific to Google Sheets. Excel 365 natively spills calculations without requiring an ARRAYFORMULA tag.
各プラットフォーム対応表
実際のExcelおよびGoogleスプレッドシートの計算エンジン仕様に基づいた検証結果です。
In modern Microsoft Excel (365 & 2021), simply enter your formula normally — dynamic arrays spill automatically across the grid.
Not supported in Microsoft Excel. In Excel 365 and 2021, array calculations spill dynamically without requiring an ARRAYFORMULA wrapper. Legacy Excel uses Ctrl+Shift+Enter.
Native Google Sheets wrapper function that enables non-array formulas to output array results across multiple rows/columns.
よくある質問と回答
技術解説Can I use ARRAYFORMULA across different worksheets in Excel?↓
Yes. You can reference cells located on other sheets by including the sheet name followed by an exclamation mark, for example: =ARRAYFORMULA(Sheet2!A2:A10). If the sheet name contains spaces, enclose it in single quotes: ='Q1 Report'!A2:A10.
What is the most common reason for errors in ARRAYFORMULA?↓
Specific to Google Sheets. Excel 365 natively spills calculations without requiring an ARRAYFORMULA tag.
Does ARRAYFORMULA work in Microsoft Excel?↓
No. ARRAYFORMULA is a proprietary Google Sheets function and is not supported in Microsoft Excel. Recommended Excel alternative: In modern Microsoft Excel (365 & 2021), simply enter your formula normally — dynamic arrays spill automatically across the grid.