While working with Excel, we are able to convert a Roman numeral into its Arabic numeral form by using the **ARABIC **function. This step by step tutorial will assist all levels of Excel users in the syntax and usage of **ARABIC **function.

*Figure 1. Final result: Excel ARABIC function*

**Syntax of ARABIC Function**

ARABIC returns the value of a Roman numeral; converts a Roman numeral into an Arabic numeral

**=ARABIC(roman_numeral)**

**roman_numeral**– the Roman numeral we want to convert to an Arabic number; can be a string enclosed in quotation marks, or a cell reference- ARABIC function performs the opposite of the ROMAN function

Below table shows the Roman numeral symbols and their corresponding values.

* Figure 2. Roman numeral symbols and values*

**Setting up our Data**

Our data consists of two columns: Roman Numeral (column B) and Arabic Numeral (column C). We want to convert the Roman numeral into its Arabic numeral form. The results will be recorded in column C.

* Figure 3. Sample data to convert to Arabic numeral*

**Convert to Arabic numeral**

In order to convert a Roman numeral into an Arabic numeral, let us follow these steps:

**Step 1**. Select cell C3

**Step 2**. Enter the formula: `=ARABIC(B3)`

**Step 3**. Press ENTER

**Step 4**: Copy the formula in cell C3 to cells C4:C12 by clicking the “+” icon at the bottom-right corner of cell C3 and dragging it down

* Figure 4. Using the ARABIC function to convert from Roman to Arabic numeral*

The corresponding Arabic numeral value of B3 “**III**” is “**3**”, as shown in cell C3.

For the succeeding examples, the Roman numerals are converted to their corresponding Arabic numeral forms in cells C4 to C12.

* Figure 5. Output : Roman Numeral converted to ARABIC numeral *

The ARABIC function can be used to convert any Roman numeral, as long as the argument is a valid representation of a Roman numeral.

**Notes:**

- ARABIC function is not case-sensitive

* Figure 6. ARABIC function is not case-sensitive*

- If the input value is an empty string “”, ARABIC function returns a zero “0”
- ARABIC returns the error #VALUE! when the argument for Roman numeral is invalid; Examples of invalid input values are:
- Dates
- Numbers
- Characters that are not symbols for Roman numerals (e.g. “A”)
- Values with space in between the symbols

*Figure 7. Examples of invalid input values for ARABIC function*

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