仕組みと動作原理
POWER関数はExcel業務を効率化する代表的な関数です。Returns the result of a number raised to a power. 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=POWER(number, power)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。
The base number.
指定例:A2The exponent power to raise the base to.
指定例:2具体的な計算例
ステップ別の実務シナリオCompound Growth - Exponential Power
Calculate 2 raised to power 8 (2^8 bytes).
| Base | Power | Result |
|---|---|---|
| 2 | 8 | — |
| 10 | 3 | — |
=POWER(A2, B2)Evaluates POWER 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。
=POWER()出力される値の特性
Returns number 256 based on sample evaluation criteria and active cell references.
実務上のベストプラクティス
- Use fractional powers to compute roots: =POWER(A2, 1/3) computes the cube root.
よくあるミスと注意点
- Raising a negative number to a fractional power results in #NUM! (complex numbers require IMPOWER).
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。
Core standard function supported across all modern and legacy Microsoft Excel versions (365, 2021, 2019, 2016, 2013, 2010), as well as Excel for the Web and Mac.
100% compatible with Google Sheets. Uses identical argument order, data types, and standard calculation logic.
よくある質問と回答
技術解説Can I use POWER 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: =POWER(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 POWER?↓
Raising a negative number to a fractional power results in #NUM! (complex numbers require IMPOWER).
Does POWER work identically in Google Sheets?↓
Yes, POWER is supported in both Microsoft Excel and Google Sheets with standard evaluation behavior.