# Excel Formula Evaluator

Evaluate bounded Excel-style formulas against JSON cell values and explain results, references, and spreadsheet errors.

> Canonical page: https://elysiatools.com/en/tools/excel-formula-evaluator

- **Category:** Data Processing

- **Keywords:** excel formula evaluator, spreadsheet formula, formula checker, excel error

## Overview

Test formulas offline before pasting them into a workbook. The evaluator never executes JavaScript and reports spreadsheet-style diagnostics.

## Inputs

- **Excel Formula** (text): =SUM(A1:A3)*B1
- **Cell Values (JSON)** (textarea): {"A1": 12, "A2": 18, "A3": 20, "B1": 1.1}
- **Decimal Places** (number)

## When to use

- When you need to verify complex nested Excel formulas before pasting them into a live spreadsheet.
- When debugging formula errors like circular references, division by zero, or invalid cell ranges.
- When simulating spreadsheet calculations programmatically using JSON-defined mock data.

## How it works

- Enter the Excel formula you want to test in the formula input field.
- Define your mock cell values and nested formulas in the JSON text area using cell coordinates as keys.
- Set the desired decimal places for numeric outputs and evaluate to view the calculated result, dependency chain, and diagnostic breakdown.

## Use cases

- Testing payroll calculations and rate multipliers before deploying them to financial workbooks.
- Simulating conditional logic thresholds (like Pass/Review) based on average scores.
- Troubleshooting formula errors and tracing cell dependency paths offline.

## Frequently asked questions

### Does this tool execute JavaScript to evaluate formulas?

No, it uses a bounded parser to evaluate Excel-style formulas safely without executing arbitrary JavaScript.

### Can I reference other formulas in my cell values?

Yes, you can define formulas as string values in your JSON cells, and the evaluator will resolve the dependency chain.

### What types of spreadsheet errors does the evaluator detect?

It reports standard spreadsheet diagnostics including invalid references, division by zero, and circular dependencies.

### How do I format the cell values input?

Provide a valid JSON object where keys are cell coordinates (e.g., "A1", "B2") and values are numbers, strings, or nested formulas.

### Which Excel functions are supported?

It supports common arithmetic operators, cell/range references, aggregation functions like SUM and AVERAGE, and conditional functions like IF.

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## Samples

- [XLS Samples](https://elysiatools.com/en/samples/xls-samples): Sample legacy Excel (XLS) files for binary spreadsheet parsing and import tests
- [XLSX Samples](https://elysiatools.com/en/samples/xlsx-samples): Sample XLSX spreadsheets for worksheet parsing and data extraction testing
- [Distributed Tracing Samples](https://elysiatools.com/en/samples/distributed-tracing-samples): Comprehensive distributed tracing examples using Jaeger, OpenTelemetry, and other modern observability tools for microservices architecture
- [AWS EventBridge Samples](https://elysiatools.com/en/samples/eventbridge-samples): AWS EventBridge examples including event buses, rules, targets, schema registry, custom events, and cross-account event routing for serverless event-driven architecture