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NumConv converts numbers between the following numeral systems: binary, octal, decimal, duodecimal, hexadecimal and Roman.

The given number is displayed in all numeral systems concurrently, making NumConv the fastest and most comfortable App to consecutively convert large quantities of numbers.

Rules for the support of Roman Numerals:
Only standard Roman figures until "M" (=1000) are supported and the largest possible Roman Numeral is 20,000 (larger numbers will not display in the Roman Numeral field but in all other systems). The input of Roman Numerals can be fuzzy, including non-strict subtractive sequences. Roman Numerals are, however, converted and displayed as strict subtractive representations (for example: decimal 19 can be entered as XIX, but will be displayed as XVIV).