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Roman Numbers 1 to 100

Roman numerals can seem confusing at first glance. But this ancient number system is simple to master with some practice.

In this guide, you’ll get a complete list of Roman numerals from 1 to 100 with tips on how to convert between Roman and Arabic numbers.

Roman Numeral Basics

The Roman numeral system uses letters to represent numbers:

I = 1
V = 5
X = 10
L = 50
C = 100

Numbers are formed by combining these letters. For example, XV is 15 (10 + 5) and CL is 150 (100 + 50).

Generally, you add the values of letters to get the number. But there are two subtraction rules:

  • If a smaller value precedes a larger one, you subtract the smaller from the larger. For example, IV is 4, not 6 (5 – 1).
  • Letters can only be subtracted once. For example, XC is 90 (100 – 10), not 80.

Roman Numerals 1-10

Here are the Roman numerals for the numbers 1 through 10:

1 – I
2 – II
3 – III
4 – IV
5 – V
6 – VI
7 – VII
8 – VIII
9 – IX
10 – X

Roman Numerals 11-100

Here is the complete list of Roman numerals from 11 to 100:

11 – XI
12 – XII
13 – XIII
14 – XIV
15 – XV
16 – XVI
17 – XVII
18 – XVIII
19 – XIX
20 – XX

21 – XXI
22 – XXII
23 – XXIII
24 – XXIV
25 – XXV
26 – XXVI
27 – XXVII
28 – XXVIII
29 – XXIX
30 – XXX

31 – XXXI
32 – XXXII
33 – XXXIII
34 – XXXIV
35 – XXXV
36 – XXXVI
37 – XXXVII
38 – XXXVIII
39 – XXXIX
40 – XL

41 – XLI
42 – XLII
43 – XLIII
44 – XLIV
45 – XLV
46 – XLVI
47 – XLVII
48 – XLVIII
49 – XLIX
50 – L

51 – LI
52 – LII
53 – LIII
54 – LIV
55 – LV
56 – LVI
57 – LVII
58 – LVIII
59 – LIX
60 – LX

61 – LXI
62 – LXII
63 – LXIII
64 – LXIV
65 – LXV
66 – LXVI
67 – LXVII
68 – LXVIII
69 – LXIX
70 – LXX

71 – LXXI
72 – LXXII
73 – LXXIII
74 – LXXIV
75 – LXXV
76 – LXXVI
77 – LXXVII
78 – LXXVIII
79 – LXXIX
80 – LXXX

81 – LXXXI
82 – LXXXII
83 – LXXXIII
84 – LXXXIV
85 – LXXXV
86 – LXXXVI
87 – LXXXVII
88 – LXXXVIII
89 – LXXXIX
90 – XC

91 – XCI
92 – XCII
93 – XCIII
94 – XCIV
95 – XCV
96 – XCVI
97 – XCVII
98 – XCVIII
99 – XCIX
100 – C

Roman to Arabic Number Conversion

To convert Roman numerals to regular Arabic numbers:

  • Break the Roman numeral down into its component parts
  • Add up the values of each part based on the Roman numeral rules

For example, LXVI is 66:

L = 50
X = 10
V = 5
I = 1

50 + 10 + 5 + 1 = 66

Converting from Arabic to Roman is a bit more complex, but there are converters that can help if you need to go that direction.

Also Read: Rational Numbers

Whether you want to learn Roman numerals for history class or just need a reference, I hope this guide to all the Roman numerals from 1 to 100 has been helpful! Let me know if you need any clarification or have feedback to improve this overview.

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