Convert the Number 9 and Write it With Roman Numerals. Write the Number Using the Roman Numeral System Letters. Learn by Using the Detailed Explanations Converter

Number 9 written in Roman numerals

The Roman numerals that we're going to use to make the conversion:


Construct the Roman number.

Substitute the Roman numerals listed above for each of the subgroups of the (Hindu-Arabic) number:

9 = 10 - 1 = X - I = IX;


IX is a group of numerals written in subtractive notation.

» The subtractive notation used in the writing of the Roman numerals


How to convert the number, how to write it in Roman numerals: 9 = ?

9 written in Roman numerals:
9 = IX

IX is a group of numerals written in subtractive notation.

» The subtractive notation used in the writing of the Roman numerals


Online converter of numbers to Roman numerals

Learn how to convert numbers to Roman numerals:

Decompose the number, break it down to place value subgroups.

Convert each of the place value subgroups, write them in Roman numerals.

Construct the Roman numeral / Substitute the calculated Roman numerals for each of the place value subgroups of the (Hindu-Arabic) number.

The latest Hindu-Arabic numbers converted to Roman numerals

How to convert: write the Hindu-Arabic number 1,276,807 using Roman numerals: (M)(C)(C)(L)(X)(X)(V)MDCCCVII Apr 17 12:59 UTC (GMT)
How to convert: write the Hindu-Arabic number 9 using Roman numerals: IX Apr 17 12:59 UTC (GMT)
How to convert: write the Hindu-Arabic number 125,227 using Roman numerals: (C)(X)(X)(V)CCXXVII Apr 17 12:59 UTC (GMT)
How to convert: write the Hindu-Arabic number 1,346,474 using Roman numerals: (M)(C)(C)(C)(X)(L)(V)MCDLXXIV Apr 17 12:59 UTC (GMT)
How to convert: write the Hindu-Arabic number 697,990 using Roman numerals: (D)(C)(X)(C)(V)MMCMXC Apr 17 12:59 UTC (GMT)
How to convert: write the Hindu-Arabic number 1,000,083 using Roman numerals: (M)LXXXIII Apr 17 12:59 UTC (GMT)
How to convert: write the Hindu-Arabic number 723,146 using Roman numerals: (D)(C)(C)(X)(X)MMMCXLVI Apr 17 12:58 UTC (GMT)
How to convert: write the Hindu-Arabic number 2,549,876 using Roman numerals: (M)(M)(D)(X)(L)M(X)DCCCLXXVI Apr 17 12:58 UTC (GMT)
How to convert: write the Hindu-Arabic number 2,159,062 using Roman numerals: (M)(M)(C)(L)M(X)LXII Apr 17 12:58 UTC (GMT)
How to convert: write the Hindu-Arabic number 664,927 using Roman numerals: (D)(C)(L)(X)M(V)CMXXVII Apr 17 12:58 UTC (GMT)
How to convert: write the Hindu-Arabic number 729,852 using Roman numerals: (D)(C)(C)(X)(X)M(X)DCCCLII Apr 17 12:58 UTC (GMT)
How to convert: write the Hindu-Arabic number 2,345 using Roman numerals: MMCCCXLV Apr 17 12:58 UTC (GMT)
How to convert: write the Hindu-Arabic number 3,254,402 using Roman numerals: (M)(M)(M)(C)(C)(L)M(V)CDII Apr 17 12:58 UTC (GMT)
All the Hindu-Arabic numbers converted to Roman numerals, online operations

The set of basic symbols of the Roman system of writing numerals

The major set of symbols on which the rest of the Roman numberals were built:

  • I = 1 (one); V = 5 (five);

  • X = 10 (ten); L = 50 (fifty);

  • C = 100 (one hundred);

  • D = 500 (five hundred);

  • M = 1,000 (one thousand);

    • For larger numbers:

    • (*) V = 5,000 or |V| = 5,000 (five thousand); see below why we prefer this notation: (V) = 5,000.

    • (*) X = 10,000 or |X| = 10,000 (ten thousand); see below why we prefer this notation: (X) = 10,000.

    • (*) L = 50,000 or |L| = 50,000 (fifty thousand); see below why we prefer this notation: (L) = 50,000.

    • (*) C = 100,000 or |C| = 100,000 (one hundred thousand); see below why we prefer this notation: (C) = 100,000.

    • (*) D = 500,000 or |D| = 500,000 (five hundred thousand); see below why we prefer this notation: (D) = 500,000.

    • (*) M = 1,000,000 or |M| = 1,000,000 (one million); see below why we prefer this notation: (M) = 1,000,000.

(*) These numbers were written with an overline (a bar above) or between two vertical lines. Instead, we prefer to write these larger numerals between brackets, ie: "(" and ")", because:

  • 1) when compared to the overline - it is easier for the computer users to add brackets around a letter than to add the overline to it and
  • 2) when compared to the vertical lines - it avoids any possible confusion between the vertical line "|" and the Roman numeral "I" (1).

(*) An overline (a bar over the symbol), two vertical lines or two brackets around the symbol indicate "1,000 times". See below...

Logic of the numerals written between brackets, ie: (L) = 50,000; the rule is that the initial numeral, in our case, L, was multiplied by 1,000: L = 50 => (L) = 50 × 1,000 = 50,000. Simple.

(*) At the beginning Romans did not use numbers larger than 3,999; as a result they had no symbols in their system for these larger numbers, they were added on later and for them various different notations were used, not necessarily the ones we've just seen above.

Thus, initially, the largest number that could be written using Roman numerals was:

  • MMMCMXCIX = 3,999.