=ISERR(value)One free generation or explanation per browser, shared across Excel and Google Sheets. Account usage limits apply afterward.
Need more than a single ISERR formula? Try our free AI for Excel — it reads your entire spreadsheet, answers questions in plain English, and builds charts and analysis in the same chat.
value:
The value or expression that you want to test for an error. This can be a cell reference, a formula, or a constant value.
The ISERR function in Excel is a useful tool that allows you to check if a specific value results in an error, excluding the #N/A error. It returns TRUE if the value is any error other than #N/A, and FALSE otherwise. This function is particularly helpful for error handling in formulas and ensuring that your calculations are robust.
In simpler terms, the ISERR function helps you identify errors in your data, making it easier to troubleshoot and clean up your spreadsheets.
Imagine you are analyzing a dataset that contains the results of a series of calculations, and you want to identify any errors that may have occurred during these calculations.
| Calculation | Result |
|---|---|
| A1/B1 | 2 |
| A2/B2 | #DIV/0! |
| A3/B3 | 5 |
| A4/B4 | #VALUE! |
| A5/B5 | #N/A |
You want to find out which calculations resulted in errors (excluding #N/A).
To check for errors in the results, you would use the ISERR formula as follows:
=ISERR(B2)When you apply the formula to each cell in the Results column, you will get the following outputs:
| Calculation | Result | ISERR Output |
|---|---|---|
| A1/B1 | 2 | FALSE |
| A2/B2 | #DIV/0! | TRUE |
| A3/B3 | 5 | FALSE |
| A4/B4 | #VALUE! | TRUE |
| A5/B5 | #N/A | FALSE |
Here, the ISERR function identifies that the calculations in cells B2 and B4 resulted in errors, while B5 is excluded because it contains #N/A.
The ISERR function is particularly useful when you need to handle errors in your calculations gracefully. It allows you to identify and manage errors without disrupting your data analysis or calculations.
#N/A.Understanding how to use the ISERR function can significantly enhance your ability to manage errors in Excel, enabling you to maintain clean and accurate datasets.
Happy error checking!
You have a dataset where Column A contains product IDs and Column B contains their corresponding sales figures. You want to identify any errors in the sales data, such as missing or incorrect product IDs that could lead to issues in reporting. By using the ISERR function, you can check for errors in the sales figures when performing calculations or lookups, allowing you to quickly pinpoint and rectify any discrepancies in the data. This ensures the accuracy of your sales reports and helps maintain data integrity without needing to delve into more complex error-checking methods.
Beyond the ISERR function: Better Analyst is a full Excel AI that goes well past individual formulas. Upload any spreadsheet and ask questions in plain English — you'll get formulas, data analysis, and charts back in seconds. It's a free AI Excel assistant that works with any .xlsx, .xls, or .csv file — no plugins, no Microsoft 365 required.
Don't have a spreadsheet yet? Use our free AI spreadsheet generator to turn a text prompt into a downloadable Excel file — a full AI Excel sheet maker that builds headers, columns, and formulas from your description.
Create a free account for formula help, explanations, and spreadsheet analysis. Usage limits depend on your plan.
Browse our complete library of Excel formula guides
Compare your options
Open a neutral research prompt in the AI tool you already use. Compare capabilities, limitations, and fit before you choose.
AI answers can be incomplete. Check source links, current pricing, and product documentation before deciding.