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Roman Numerals Calculator

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Online Roman Numerals Calculator:

Our online roman numerals calculator provides you with addition, subtraction, multiplication, and division of roman numerals. Our roman numerals calculator provide you roman numerals to Arabic numbers translation for better understanding.

About Roman Numerals:

Roman Empire is well known for their intelligence and development they developed a numeral system for easy business tradings. Roman numerals system are standard numbering system used in roman.

It is originated from ancient Rome & used the Latin alphabet to represent numbers. The Roman numbering system used letters to represent numbers.

It has seven letters namely I, V, X, L, C, D, and M.

In between 800 to 900 BC firstly this numbering system where used.

Each and every letter has its own value like I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, and M = 1000.

All the numbers were formed by using these letters.

There are different rules used in the roman numbering system used to represent numbers. If a lower value letter placed before a higher value letter then it would be subtracted. For example, 4 it is represented as "IV" so here "I" is written before the "V" then we need to subtract "I" from "V".

You can not use the same letter more than three times to represent a number. For example, you can use CCC = 300 if you write CCCC then it is not equal to 400 cause CD = 400.

We can't subtract the number that 10 times higher than the number. For example 99 = XCIX but we can't write IC.

The maximum number that formed by I, V, X, L, C, D, and M is 3999 because you can not use the same letter more than three times.

To write higher than 3999 number we need to use underline on a character. The underline makes number multiplied by 1000. For example M= 1000X1000 = 1,000,000 & It represents as _M.

How to use roman numerals calculator?

You need to follow below instruction for the user guide of roman numerals calculator.
Step 1:
Open Roman Numerals Calculator.
Step 2:
Enter 1st and 2nd roman numerals in their appropriate fields.
Step 3:
Select the operator addition, subtract, divide, or multiply to perform.
Step 4:
Click on calculate to get the result.

Roman numerals conversion table

Number Roman numeral Calculation
0 not defined  
1 I 1
2 II 1+1
3 III 1+1+1
4 IV 5-1
5 V 5
6 VI 5+1
7 VII 5+1+1
8 VIII 5+1+1+1
9 IX 10-1
10 X 10
11 XI 10+1
12 XII 10+1+1
13 XIII 10+1+1+1
14 XIV 10-1+5
15 XV 10+5
16 XVI 10+5+1
17 XVII 10+5+1+1
18 XVIII 10+5+1+1+1
19 XIX 10-1+10
20 XX 10+10
21 XXI 10+10+1
22 XXII 10+10+1+1
23 XXIII 10+10+1+1+1
24 XXIV 10+10-1+5
25 XXV 10+10+5
26 XXVI 10+10+5+1
27 XXVII 10+10+5+1+1
28 XXVIII 10+10+5+1+1+1
29 XXIX 10+10-1+10
30 XXX 10+10+10
31 XXXI 10+10+10+1
32 XXXII 10+10+10+1+1
33 XXXIII 10+10+10+1+1+1
34 XXXIV 10+10+10-1+5
35 XXXV 10+10+10+5
36 XXXVI 10+10+10+5+1
37 XXXVII 10+10+10+5+1+1
38 XXXVIII 10+10+10+5+1+1+1
39 XXXIX 10+10+10-1+10
40 XL -10+50
41 XLI -10+50+1
42 XLII -10+50+1+1
43 XLIII -10+50+1+1+1
44 XLIV -10+50-1+5
45 XLV -10+50+5
46 XLVI -10+50+5+1
47 XLVII -10+50+5+5+1
48 XLVIII -10+50+5+1+1+1
49 XLIX -10+50-1+10
50 L 50
51 LI 50+1
52 LII 50+1+1
53 LIII 50+1+1+1
54 LIV 50-1+5
55 LV 50+5
56 LVI 50+5+1
57 LVII 50+5+1+1
58 LVIII 50+5+1+1+1
59 LIX 50-1+10
60 LX 50+10
61 LXI 50+10+1
62 LXII 50+10+1+1
63 LXIII 50+10+1+1+1
64 LXIV 50+10-1+5
65 LXV 50+10+5
66 LXVI 50+10+5+1
67 LXVII 50+10+5+1+1
68 LXVIII 50+10+5+1+1+1
69 LXIX 50+10-1+10
70 LXX 50+10+10
71 LXXI 50+10+10+1
72 LXXII 50+10+10+1+1
73 LXXIII 50+10+10+1+1+1
74 LXXIV 50+10+10-1+5
75 LXXV 50+10+10+5
76 LXXVI 50+10+10+5+1
77 LXXVII 50+10+10+5+1+1
78 LXXVIII 50+10+10+5+1+1+1
79 LXXIX 50+10+10-1+5
80 LXXX 50+10+10+10
81 LXXXI 50+10+10+10+1
82 LXXXII 50+10+10+10+1+1
83 LXXXIII 50+10+10+10+1+1+1
84 LXXXIV 50+10+10+10-1+5
85 LXXXV 50+10+10+10+5
86 LXXXVI 50+10+10+10+5+1
87 LXXXVII 50+10+10+10+5+1+1
88 LXXXVIII 50+10+10+10+5+1+1+1
89 LXXXIX 50+10+10+10-1+10
90 XC 100-10
91 XCI 100-10+1
92 XCII 100-10+1+1
93 XCIII 100-10+1+1+1
94 XCIV 100-10-1+5
95 XCV 100-10+5
96 XCVI 100-10+5+1
97 XCVII 100-10+5+1+1
98 XCVIII 100-10+5+1+1+1
99 XCIX 100-10-1+10
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
5000 V  
10000 X  
50000 L  
100000 C  
500000 D  
1000000 M