MotionShine01 / Symbols
I V X L C D M
1, 5, 10, 50, 100, 500 and 1,000. Numerals are added from left to right, largest first.
Free tool
Roman numeral converter, with the working.
Type a number to get its Roman numeral, or a Roman numeral to get the number, with every step shown: MMXXVI is M + M + X + X + V + I, or 2,026. Numerals written in a non-standard way, like IIII or IC, are pointed out with the usual form. Turn a date into numerals for an engraving, a wedding sign or a tattoo, and see a table of the common ones.
A date in Roman numerals
Common numerals
Everything is worked out in your browser.
The rules
Seven letters, a few rules.
02 / Subtracting
IV, IX, XL, XC, CD, CM
A smaller numeral before a larger one is taken away, but only in these six pairs: 4, 9, 40, 90, 400 and 900.
03 / Repeats
Three at most
I, X, C and M repeat up to three times in a row; V, L and D never repeat. So 4 is IV, not IIII (though clocks often show IIII).
Questions
Good to know.
What is 2026 in Roman numerals?
MMXXVI: M (1,000) + M (1,000) + X (10) + X (10) + V (5) + I (1).
Why does it stop at 3,999?
The standard form has no symbol above M, and M can repeat only three times, so MMMCMXCIX (3,999) is the largest. Old texts used a bar above a numeral to multiply it by 1,000.
Is there a Roman numeral for zero?
No. The Roman system had no zero.
Why do clocks show IIII?
Many clock faces use IIII instead of IV by tradition. Both are understood; IV is the standard form.
How do I write a date?
Convert each part: 17 October 2026 is XVII.X.MMXXVI, day first. Use the date box to get it in any order.