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Math: Numeral system converter
Convert common numbers (Hindu-Arabic) to the Roman numeral system.
Please turn on Javascript to let the converter do it's job.
The maximum number is 3999 (MMMCMXCIX).
Hindu-Arabic numerals to Roman numeralsRoman numerals to Hindu-Arabic numerals
All math converters
Positional notation converter (Binary (Base 2), Ternary (Base 3), Quaternary (Base 4), Quinary (Base 5), Octal (Base 8), Decimal (Base 10), Duodecimal (Base 12), Hexadecimal (Base 16), Vigesimal (Base 20), Duotrigesimal (Base 32))
Angle converter (Degree, Grad, Minute of arc, Point, Radian, Second of arc)
Numeral system converter (Hindu-Arabic numerals, Roman numerals)
Math fun fact
111,111,111 x 111,111,111 = 12,345,678,987,654,321
Common conversions:

Dram to Hundredweight
Attogram to Hectogram
Mile per second to Knot
Zettagram to Hectogram
Centigram to Femtogram
Teragram to Centigram
Ternary (Base 3) to Decimal (Base 10)
Kilogram to Centigram
Hectogram to Gram
Attogram to Kilogram
Second to Minute
Mile per hour to Speed of sound
Decagram to Picogram
Hundredweight (US) to Troy Ounce
RÝmer to Rankine

Other conversions:

Text to Unicode for HTML (decimal)
Text to Unicode
Resolution to Megapixel
Date to Zodiac (Tropical)
Text to Unicode for HTML (hexadecimal)
Date to Zodiac (Western)
Unicode to Unicode for HTML (hexadecimal)
Unicode to Text
Unicode to Unicode for HTML (decimal)
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