How to Convert Roman Numerals to Arabic Numbers

Different from Arabic numbers , there are 7 Roman numerals: I, V, X, L, C, D and M, where V is equal to 5 and M is equal to 1000.

The basic rule is when the larger number is in front, then add, when the smaller number is in front, then minus. For example:

VI: where V is 5 and I is 1, V is larger and in front, so add the 2 numbers together 5+1 = 6
IL: where L is 50 and I is 1, I is smaller and in front, so minus the 2 numbers together 50-1 = 49
where the letters are the same, add together: III = 1 + 1 + 1 = 3

To convert a Roman numeral to the Arabic number, please break down the Arabic number and refer to the converter table below.

Number	Thousands	Hundreds	Tens	Ones
1	M	C	X	I
2	MM	CC	XX	II
3	MMM	CCC	XXX	III
4		CD	XL	IV
5		D	L	V
6		DC	LX	VI
7		DCC	LXX	VII
8		DCCC	LXXX	VIII
9		CM	XC	IX

Example 1: to convert 2300 into a Roman numeral.

Step 1: Break the number 2384 into thousands, hundreds, tens and ones;

2384 = 2000 + 300

Step 2: Using the table above to check the Roman numerals for each number;

Step 3: Combine all Roman numerals together.

2300 = 2000 + 300 = MM + CCC = MMCCC

Results: 2300 is MMCCC when written in Roman numerials.

Example 2: to convert 2384 into a Roman numeral.

Step 1: Break the number 2384 into thousands, hundreds, tens and ones;

2384 = 2000 + 300 + 80 + 4

Step 2: Using the table above to check the Roman numerals for each number;

Step 3: Combine all Roman numerals together.

2384 = 2000 + 300 + 80 + 4 = MM + CCC + LXXX + IV = MMCCCLXXXIV

Results: 2384 is MMCCCLXXXIV when written in Roman numerials.

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