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.

Number Roman

Numeral

Number Roman

Numeral

Number Roman

Numeral

Number Roman

Numeral

Number Roman

Numeral

1 I 21 XXI 41 XLI 61 LXI 81 LXXXI
2 II 22 XXII 42 XLII 62 LXII 82 LXXXII
3 III 23 XXIII 43 XLIII 63 LXIII 83 LXXXIII
4 IV 24 XXIV 44 XLIV 64 LXIV 84 LXXXIV
5 V 25 XXV 45 XLV 65 LXV 85 LXXXV
6 VI 26 XXVI 46 XLVI 66 LXVI 86 LXXXVI
7 VII 27 XXVII 47 XLVII 67 LXVII 87 LXXXVII
8 VIII 28 XXVIII 48 XLVIII 68 LXVIII 88 LXXXVIII
9 IX 29 XXIX 49 XLIX 69 LXIX 89 LXXXIX
10 X 30 XXX 50 L 70 LXX 90 XC
11 XI 31 XXXI 51 LI 71 LXXI 91 XCI
12 XII 32 XXXII 52 LII 72 LXXII 92 XCII
13 XIII 33 XXXIII 53 LIII 73 LXXIII 93 XCIII
14 XIV 34 XXXIV 54 LIV 74 LXXIV 94 XCIV
15 XV 35 XXXV 55 LV 75 LXXV 95 XCV
16 XVI 36 XXXVI 56 LVI 76 LXXVI 96 XCVI
17 XVII 37 XXXVII 57 LVII 77 LXXVII 97 XCVII
18 XVIII 38 XXXVIII 58 LVIII 78 LXXVIII 98 XCVIII
19 XIX 39 XXXIX 59 LIX 79 LXXIX 99 XCIX
20 XX 40 XL 60 LX 80 LXXX 100 C

Roman Numbers 100 to 1000

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

Number Roman Numeral  Evaluation
100 C 100
200 CC 100+100
300 CCC 100+100+100
400 CD 500-100
500 D 500
600 DC 500+100
700 DCC 500+100+100
800 DCCC 500+100+100+100
900 CM 1000-100
1000 M 1000

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 = 1300 (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 

Write Instead of For the value of
IV IIII 4
IX VIIII 9
XL XXXX 40
XC LXXXX 90
CD CCCC 400
M DCCCC 900

Roman Numerals List (1 to 1,00,000)

Below are some basic Roman numerals as:

1 5 10 50 100 500 1000
I V X L C D M
5000 10,000 50,000 100,000 500,000 1,000000
\(\bar{V}\) \(\bar{X}\) \(\bar{L}\) \(\bar{C}\) \(\bar{D}\) \(\bar{M}\)

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

Frequently Asked Questions – FAQs

How do we write 100 in roman?

In roman numerals, 100 is represented by C.

Write roman numerals from 1 to 10?

The roman numerals from 1 to 10 are given by:
1 – I
2 – II
3 – III
4 – IV
5 – V
6 – VI
7 – VII
8 – VIII
9 – IX
10 – X

How do we write 200 in Roman?

200 in Roman is written as CC.

How do you write roman numbers?

Roman numbers are written by using seven different alphabets. The numbers and alphabets are:
I – 1
V – 5
X – 10
L – 50
C – 100
D – 500
M – 1000
Using these alphabets, we can write all the roman numbers.

What does the roman number XC equal to?

XC = 90

How to evaluate 800 in roman numeral?

800 = 500 + 100 + 100 + 100
500 = D and 100 = C
Therefore,
800 = DCCC

What is the use of roman numerals?

Roman numerals are used for labelling the name or position of any object or a person.
For example, Sam came Ist in class.
Prince Charles III
Schools have Class 1st to Class Xth.

Leave a Comment

Your email address will not be published. Required fields are marked *