What’s this wrist watch doing in a movie whose events are supposed to take place around the year ⅮⅭⅭⅬⅩⅩⅩⅢ ab urbe condita? Isn’t that from, say, ⅯⅯⅮⅭⅭⅫ at least? As much fun as it may be, you do not have to convert between Roman and decimal numbers in your head. Find here a Roman Numerals to decimal (and vice versa) converter instead.
First, on Calculus Beach
Draw a line in the sand on a beach. Draw another one, and draw a few more. Draw them in parallel, and while you’re at it put into the first a few pebbles.
If, now, you move the pebbles around, you are well on your way to calculus. It’s practically in your hands already: a pebble or small stone, in Latin and not by accident, is a “calculus.”
So, let’s put the pebbles and counting to good use converting some numbers:
Roman Numerals ⇔ Decimal Numbers Converter (for Years, Chapters, etc.)
Decimal Number to Roman Numeral
To get its Roman numeral equivalent, type any number between (and including) 1 and 100 000 under Decimal Number:
| Roman Numeral | |
|---|---|
Roman Numeral to Decimal Number
To find the decimal equivalent for a Roman numeral, enter it under Roman Numeral:
| Decimal Number | |
|---|---|
Roman Numerals ⇔ Decimal Numbers Converter: FAQ
In what form can I enter the Roman numerals?
You can use the Unicode character for Roman numerals or the Basic Latin substitutes, the latter in both upper and lower case.
Example: ⅮⅭⅭⅬⅢ, DCCLIII and dccliii all work.
Will a number like “ⅮⅭⅭⅬⅡⅤ” work?
No, not in every case.
The converter only looks one character ahead, so subtracting with reversed character order will only work if you use Ⅱ (which is one character), for instance, but not for II (two characters).
(Roman numerals converter first published June 2024)