ConvertRoman to DecimalOnline

Roman

Decimal

This converter converts the given roman number to decimal number.

Roman to Decimal

Roman to decimal conversion is the process of converting a Roman numeral to its equivalent decimal (base-10) representation.

Steps to Convert Roman to Decimal

Here are the steps to convert a Roman numeral to a decimal number:

Assign decimal values to each Roman numeral letter (I, V, X, L, C, D, M).
Read the Roman numeral from left to right.
If a smaller numeral appears before a larger numeral, subtract the value of the smaller numeral from the larger numeral.
Sum up all the values to get the final decimal equivalent.

Example

Let's take an example to illustrate the process. Suppose we want to convert the Roman numeral XIV to decimal:

Assign decimal values: I (1), V (5), X (10).
Read XIV from left to right.
X is 10. Then and I (1) comes before V (5). Subtract 1 from 5. Therefore IV becomes 4.
Add the values (X, IV): 10 + 4 = 14.

The decimal equivalent is 14.

Therefore, XIV in Roman numerals is equal to 14 in decimal.

{ "topic": "roman-decimal", "input_types": [ "text" ], "input_labels": [ "Roman" ], "input_values": [ "XIV" ], "type": "Convert", "title": "Roman to Decimal", "category": "Numbers", "function": "function myFunc(arr) {\n let x = arr[0];\n const rNs = {'I': 1,'V': 5,'X': 10,'L': 50,'C': 100,'D': 500,'M': 1000};\n let result = 0;\n for (let i = 0; i < x.length; i++) {\n let csv = rNs[x[i]];\n let nsv = rNs[x[i + 1]];\n if (nsv > csv) {\n result += (nsv - csv);\n i++;\n } else {\n result += csv;\n }\n }\n return result;\n }", "op_label": "Decimal", "explanation": "This converter converts the given roman number to decimal number.", "content": "<p>Roman to decimal conversion is the process of converting a Roman numeral to its equivalent decimal (base-10) representation.</p><h2>Steps to Convert Roman to Decimal</h2><p>Here are the steps to convert a Roman numeral to a decimal number:</p><ol class=\"steps\"><li>Assign decimal values to each Roman numeral letter (I, V, X, L, C, D, M).</li><li>Read the Roman numeral from left to right.</li><li>If a smaller numeral appears before a larger numeral, subtract the value of the smaller numeral from the larger numeral.</li><li>Sum up all the values to get the final decimal equivalent.</li></ol><h2>Example</h2><p>Let's take an example to illustrate the process. Suppose we want to convert the Roman numeral <strong>XIV</strong> to decimal:</p><ol class=\"steps\"><li>Assign decimal values: I (1), V (5), X (10).</li><li>Read XIV from left to right.</li><li>X is 10. Then and I (1) comes before V (5). Subtract 1 from 5. Therefore IV becomes 4.</li><li>Add the values (X, IV): 10 + 4 = 14.</li></ol><p>The decimal equivalent is <strong>14</strong>.</p><p>Therefore, <strong>XIV</strong> in Roman numerals is equal to <strong>14</strong> in decimal.</p>" }