Funktionsweise im Detail.
ISBLANK ist eine zentrale Formel in Excel. Checks whether a cell is completely empty and returns TRUE or FALSE. Sie optimiert Ihre Tabellenkalkulationen, automatisiert Routineabfragen und sorgt für fehlerfreie Auswertungen in modernen Tabellen.
Syntax.
Standardmäßige Excel-Schreibweise=ISBLANK(value)Argumente.
Alle von dieser Funktion akzeptierten Parameter im Überblick.
The cell reference you want to test for emptiness.
Beispiel:B2Praxisbeispiel.
Schritt-für-Schritt-SzenarioInventory Audit - Missing Stock Check
Verify if a product quantity cell is completely empty.
| SKU | Stock Level | Is Empty? |
|---|---|---|
| SKU-101 | — | — |
| SKU-102 | 45 | — |
| SKU-103 | 0 | — |
=ISBLANK(B2)Evaluates ISBLANK over the sample table cells, placing the verified output in cell C2.
Formel-Generator.
Vollständigen Assistenten öffnenPassen Sie die Eingabefelder an, um eine fertige Formel für Ihre Tabelle zu kopieren.
=ISBLANK()Ergebniseigenschaften.
Returns boolean TRUE based on sample evaluation criteria and active cell references.
Empfohlene Vorgehensweise
- Combine with IF to hide zero-value calculations until data is entered: =IF(ISBLANK(A2), "", A2*B2).
- A cell containing a formula that evaluates to empty text ("") is NOT blank according to ISBLANK.
Typische Fehlerquellen
- Cells containing invisible space characters (" ") return FALSE because spaces are considered text.
- Passing an entire range into ISBLANK without array handling only evaluates the top-left cell.
Kompatibilität nach Versionen.
Geprüft auf Basis der offiziellen Tabellenkalkulations-Engines von Microsoft und Google.
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.
Häufig gestellte Fragen.
Technische Q&ACan I use ISBLANK 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: =ISBLANK(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 ISBLANK?↓
Cells containing invisible space characters (" ") return FALSE because spaces are considered text.
Does ISBLANK work identically in Google Sheets?↓
Yes, ISBLANK is supported in both Microsoft Excel and Google Sheets with standard evaluation behavior.