Roman Numeral Rules

  • Larger numerals must come before smaller numerals, except for subtractive notation
  • Subtractive notation: IV (4), IX (9), XL (40), XC (90), CD (400), CM (900)
  • No numeral can appear more than three consecutive times (except M)
  • Valid characters: I, V, X, L, C, D, M

Conversion Result

14

Conversion Details

Roman Numeral: XIV
Number: 14

Conversion Steps:

X (10) + IV (4) = 14

Roman Numeral Reference

I = 1
V = 5
X = 10
L = 50
C = 100
D = 500
M = 1000
IV = 4
IX = 9
XL = 40
XC = 90
CD = 400
CM = 900

Common Roman Numeral Conversions

I
1
V
5
X
10
L
50
C
100
D
500
M
1000
XIX
19
XLIX
49
XCIX
99
CDXCIX
499
CMXCIX
999

Applications of Roman Numerals

Books and Outlines

Roman numerals are commonly used in book chapters, outlines, and legal documents to denote major sections or hierarchical levels.

Clocks and Watches

Many analog clocks and watches use Roman numerals to indicate the hours, providing a classic and elegant appearance.

Movies and Copyrights

Roman numerals are often used in movie titles (e.g., "Star Wars: Episode IV - A New Hope") and to indicate copyright years to give a sense of timelessness.

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