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.

Roman | Arabic |
---|---|

I | 1 |

V | 5 |

X | 10 |

L | 50 |

C | 100 |

D | 500 |

M | 1000 |

Arabic | Roman |
---|---|

1 | I |

5 | V |

10 | X |

50 | L |

100 | C |

500 | D |

1000 | M |

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;

- 2000 = MM
- 300 = CCC

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;

- 2000 = MM
- 300 = CCC
- 80 = LXXX
- 4 = IV

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.

**You may also like:**