Convert Roman Numeral XX to Number | Roman Numerals Calculator
Convert Roman numeral XX to number. XX = 20 in decimal numbers. Free online Roman numeral converter with explanation.
XX = 20
in decimal numbers
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How to Convert XX to Number
Step 1: X = 10
Running total: 10
Remaining: X
Step 2: X = 10
Running total: 20
Roman Numeral Rules
Basic Symbols
I (1), V (5), X (10), L (50), C (100), D (500), M (1000)
Subtractive Notation
When a smaller numeral appears before a larger one, subtract the smaller value (e.g., IV = 4, IX = 9, XL = 40)
Repetition Rules
Symbols I, X, C, and M can be repeated up to three times. V, L, and D cannot be repeated.
About this Calculator
Convert Roman numeral XX to number. XX = 20 in decimal numbers. Free online Roman numeral converter with explanation.