Conversion To Roman Numerals

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Convert To Roman Numerals Online

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Roman numerals were the standard system of numbering used by the Romans in ancient Rome. Used primarily for counting, they were adapted from the Etruscan numerals system. The original system of numerals used in the classical era was altered slightly in the Middle Ages, resulting in the numeral system that we use today where letters represent values as numerals. Convert Arabic to Roman Numerals This page will help you turn everyday numbers into Roman numerals. Type into the box and the number will be converted automatically. Due to their still fairly extensive use, the need to convert a Roman numeral to an Arabic one or vice versa: an Arabic number to a Roman number, is still quite common. Conversion of Roman numerals to Arabic numerals. To convert a Roman numeral to an Arabic numeral, you need to sum up all roman numbers from left to right.

Enter a whole number such as 2003, or a Roman numeral such as MMIII, then click Convert.

The input must be in the range of 1 - 4999, or I to MMMMCMXCIX.

Roman Numeral Date Converter

The Basics

Convert To Roman Numerals 2018

A smaller number in front of a larger number means subtraction, all else means addition. For example, IV means 4, VI means 6. You would not put more than one smaller number in front of a larger number to subtract. For example, IIV would not mean 3. You must separate ones, tens, hundreds, and thousands as separate items. That means that 99 is XCIX, 90 + 9, but never should be written as IC. Similarly, 999 cannot be IM and 1999 cannot be MIM.
I	The numeral one. II is two, III is three. You seldom see IIII as 4, since IV can also mean 4, plus its shorter to write.
V	The numeral 5. IV is 4, VI is 6, VII is 7, VIII is 8.
X	The numeral 10. IX is 9, XI is 11, etc.
L	The numeral 50. XL would be 40.
C	The numeral 100. Think of Century having a hundred years. C is short for the Latin word Centum, but that's not very easy to remember.
D	The numeral 500.
M	The numeral 1000.
Sometimes you will see a numeral with a line over it. That means to multiply it by 1000. A numeral V with a line over it means 5000.