Roman Numerals

Roman Numerals are a special kind of numerical notations that were earlier used by the Romans. It is an additive and subtractive system in which letters are used to denote certain base numbers and arbitrary numbers in the number system and denoted using a different combination of symbols.

Roman Numbers 1 to 100 Chart

Following is the list of Roman numbers from 1 to 100. There are certain rules to write the roman letters from 1 to 100, which are explained here.

Roman Numerals 1 to 10

Roman Numerals 11 to 20

Roman Numerals 21 to 30

Roman Numerals 31 to 40

Roman Numerals 41 to 50

Roman Numerals  51 to 60

Roman Numerals 61 to 70

Roman Numerals 71 to 80

Roman Numerals 81 to 90

Roman Numerals 91 to 100

Roman Numbers 1 to 1000

After practising the above list, you will be able to find the list of roman numbers 1 to 1000 as well.

From the above table, we can see how the roman numbers have been calculated and expressed alphabetically.

Roman Letters

The roman letters are the English alphabets but not all the alphabets are the roman alphabets. There are 23 roman letters out of 26 English alphabets, in which J, U and W are not considered as roman. Hence, the roman letters are:
A,B, C, D, E, F, G, H, I, K, L, M, N, O, P, Q, R, S, T, V, X, Y and Z.
All these letters are used to represent the roman numbers. For example, the year 2019 is written as MMXIX.

Converting Roman Numerals to Numbers

We can easily convert any numbers into a roman form and conversely, any roman form into any number. Let us understand with the help of an example, Consider a number, 1984

Convert number into the roman form

Break the number 1984 into 1000, 900, 80 and 4, then perform each conversion

As, 1000 + 900 + 80 + 4 = 1984

• 1000 = M
• 900 = CM
• 80 = LXXX
• 4 = IV

1000 + 900 + 80 + 4 = 1984,

So, 1984 = MCMLXXXIV

Rules for forming the Numbers

• When a symbol appears after a greater symbol, it will be added. For Example-  VI = V + I = 5 + 1 = 6

• When a symbol appears before a greater symbol, it will be subtracted. For Example-  IX = X – I = 10 – 1 = 9

Tips – Break the number into Thousands, Hundreds, Tens and Ones, and write down each in turn

Convert 1774 to Roman Numerals

Break 1774 into 1000, 700, 70, 4 and then do each conversion

1000 = M

700 = DCC

70 = LXX

4 = IV

1000+700+70+4 = 1774, so 1774 = MDCCLXXIV

Rules for Converting Numbers to Roman Numerals

The three primary rules for writing and reading Roman numerals:

1. A letter can be repeated only for three times, for example XXX = 30, CC = 200, etc.

2. If one or more letters are placed after another letter of greater value, add that amount.

VII = 7 (5 + 2 = 7)

LXXX = 80 (50 + 10 + 10 + 10 = 80)

MCCC = 1000 (100 + 100 + 100 = 1300)

3. If a letter is placed before another letter of greater value, subtract that amount.

CM = 900 (1000 – 100 = 900)

IX = 9 ( 10 – 1 = 9 )

XC = 90 (100 – 10 = 90)

Example for Subtractive Rule 

Roman Numerals List

Below are some basic Roman numerals as:

Convert Roman numerals to numbers easily with the help of  a simple roman numeral calculator  at BYJU’S.