Roman Numeral Converter

Convert between regular numbers and Roman numerals

Roman Numeral Reference:
I
1
V
5
X
10
L
50
C
100
D
500
M = 1000

FAQ – Roman Numeral Converter

What is a Roman Numeral Converter?

A Roman Numeral Converter helps you convert numbers between Roman numerals (I, V, X, L, C, D, M) and Arabic numbers (1, 2, 3, etc.). It’s a quick tool to understand and use the ancient Roman numbering system.

How do Roman numerals work?

Roman numerals use combinations of seven letters — I, V, X, L, C, D, and M — each representing a specific value. Numbers are formed by adding or subtracting these values based on their order.

  • I = 1
  • V = 5
  • X = 10
  • L = 50
  • C = 100
  • D = 500
  • M = 1000
How are Roman numerals written?

Roman numerals are written from largest to smallest from left to right. When a smaller numeral appears before a larger one, it is subtracted. For example:

  • IV = 4 (5 - 1)
  • IX = 9 (10 - 1)
  • XL = 40 (50 - 10)
  • XC = 90 (100 - 10)
Can I convert large numbers like 2025?

Yes! The converter can handle large numbers easily. For example, 2025 in Roman numerals is MMXXV.

Do Roman numerals have zero?

No, the Roman numeral system does not have a symbol for zero. It was designed primarily for counting and trade, where zero wasn’t used.

What is the highest number in Roman numerals?

Traditionally, Roman numerals go up to 3,999 (MMMCMXCIX). Numbers beyond that are represented using overlines or modern adaptations, but these are not standard.

Can this tool convert both ways?

Yes! The Roman Numeral Converter can convert from numbers to Roman numerals and from Roman numerals to numbers.

Are Roman numerals still used today?

Yes. Roman numerals are used in clocks, book chapters, movie titles, monarch names (like Queen Elizabeth II), and events such as the Olympic Games or Super Bowls.

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