Numerals and Radix Converter,
Other Radix Numerals

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The conversion is approximate.

Either the unit does not have an exact value,

or the exact value is unknown. ? Is it a number? Sorry, can't parse it. (?) Sorry, we don't know this substance. Please pick one from the list. *** You have not choosen the substance. Please choose one.

Without the substance conversion to some units cannot be calculated.**Hint:** Can't figure out where to look for your unit? Try searching for the unit name. The search box is in the top right corner of the page.**Hint:** You don't have to click "Convert Me" button every time. Hitting Enter or Tab key after typing in your value also triggers the calculations.**Found an error? Want to suggest more conversions?** Contact us on Facebook.**Did you know?**

In medieval and ancient times usage of Roman numerals was not consistent. For example, you could find both VIII and IIX to designate eight even in the same document.
?
Not a valid quinary number. Please only use digits 0 to 4
?
Not a correct number.
?
Not a decimal integer.
?
Not a valid octal number. Please only use digits from 0 to 7
?
Not a valid undecimal number. Please only use digits 0 to 9 and letter A
?
Not a valid quaternary number. Please only use digits 0 to 3
?
Not a valid hexadecimal number. Please only use digits 0 to 9 and letters from A to F
?
Not a valid binary number. Please only use digits 0 and 1
?
Not a valid Roman numeral
?
Not a valid ternary number. Please only use digits 0 to 2
?
Not a valid duodecimal number. Please only use digits 0 to 9 and letters A and B
?
Not a valid Greek numeral

Either the unit does not have an exact value,

or the exact value is unknown. ? Is it a number? Sorry, can't parse it. (?) Sorry, we don't know this substance. Please pick one from the list. *** You have not choosen the substance. Please choose one.

Without the substance conversion to some units cannot be calculated.

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In medieval and ancient times usage of Roman numerals was not consistent. For example, you could find both VIII and IIX to designate eight even in the same document.