Roman Numerals Converter

Make use of the Roman Numerals Converter, a free online tool that converts roman numeral to a number or number to roman numeral easily. All you need to do is simply provide the inputs be it number or roman numeral in the input fields and tap on the calculate button to convert it to other form in no time.

Convert Number to Roman
Convert Roman to Number

Roman Numeral Converter: If you ever need assistance with the conversion of Roman Numerals or Numbers to other form take the help of the handy tool provided here. Make use of the online calculator to overcome the struggle of converting Roman Numerals to Numbers or Numbers to Roman Numerals. Just Input the Numbers or Roman numerals for which you want to know the other form and get to know the detailed worked out procedure.

How to Convert Numbers to Roman Numerals?

Follow the simple and easy steps listed below to convert numbers to Roman Numerals. Going through these steps you will learn about the manual procedure on how to convert numbers to Roman Numeral. They are along the lines

  • Break down the given number into Thousands, Hundreds, Tens, Ones Place.
  • Write Each Place Value as Roman Numerals.
  • Put the Roman Numerals together.

How to Convert Roman Numerals to Numbers

Go through the simple guidelines listed below to convert from Roman Numerals to Numbers easily. They are as such

  • Convert each symbol of Roman Numerals into the value it represents
  • Take one by one symbol from starting.
  • If the current value of the symbol is greater than or equal to next symbol add this to running total.
  • If not so subtract this value by adding the value of next symbol to running total.

Rules for formation of Roman Numerals

Below are the rules to keep in mind while forming Roman Numerals or Numbers.

Rule 1: The roman digits I, X, and C are repeated upto three times in succession to form the numbers.
  • We know the value of I =1, X= 10, C= 100
  • No digit should be repeated in succession more than thrice, i.e. I, X, C cant be repeated.
  • Digits V, L, and D can't be repeated.

Rule 2: When a digit of lower value is written to the right or after a higher value, add the values of all digits.

Values of similar digits are also added.

Rule 3: When a digit of lower value is written on the left or before higher value subtract the lower value from the higher value.

Rule 4: If we need to write numbers beyond 10 write the number 10 or groups of number 10 and then place 1 or 5 as the case may be.

Rule 5: If a horizontal line is drawn over the symbols or digits of Roman numerals, then the value of the numerals becomes 1000 times.

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 50-10
41 XLI 50-10+1
42 XLII 50-10+1+1
43 XLIII 50-10+1+1+1
44 XLIV 50-10-1+5
45 XLV 50-10+5
46 XLVI 50-10+5+1
47 XLVII 50-10+5+1+1
48 XLVIII 50-10+5+1+1+1
49 XLIX 50-10-1+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+10
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

Years in Roman Numerals

Year Roman numeral
1000 M
1100 MC
1200 MCC
1300 MCCC
1400 MCD
1500 MD
1600 MDC
1700 MDCC
1800 MDCCC
1900 MCM
1990 MCMXC
1991 MCMXCI
1992 MCMXCII
1993 MCMXCIII
1994 MCMXCIV
1995 MCMXCV
1996 MCMXCVI
1997 MCMXCVII
1998 MCMXCVIII
1999 MCMXCIX
2000 MM
2001 MMI
2002 MMII
2003 MMIII
2004 MMIV
2005 MMV
2006 MMVI
2007 MMVII
2008 MMVIII
2009 MMIX
2010 MMX
2011 MMXI
2012 MMXII
2013 MMXIII
2014 MMXIV
2015 MMXV
2016 MMXVI
2017 MMXVII
2018 MMXVIII
2019 MMXIX
2020 MMXX
2021 MMXXI
2022 MMXXII
2023 MMXXIII
2024 MMXXIV
2025 MMXXV

Example

Convert 395 into Roman Numerals?

Solution: 

Given number is 395

Step 1: Firstly, figure out the place values we have

395 = 300+90+5

Step 2: Later write down each place value as roman numerals

300 = CCC

90 = XC

5 = V

Step 3: Put all the place values together

So, 395 = CCCXCV

Onlinecalculator.guru has calculators of various math concepts that help you do multiple calculations at one go.

Roman Numerals Converter

FAQs on Romal Numeral

1. What is meant by Roman Numerals?

In Mathematics, Roman Numeral is a combination of some specific letters to represent the number.


2. How to use the Roman Numeral Converter?

All you need to do is enter the input numbers or roman numerals in the input field and tap on the calculate button to get the Roman Numeral or Vice Versa in a split second.


3. What are the uses of Roman Numerals?

Roman Numerals are used for writing ranks in the classroom or for expressing school classes. They are also used to write the numbers on clock dials.


4. How to convert 25 to Roman Numerals?

25 can be obtained by breaking down the place values of numbers and writing its equivalent roman numerals i.e. 20+5 = XX and V. Place the values together XXV and that's it.