How to write 38 in Roman numerals
Roman numerals are built place by place, from the largest value to the smallest. For 38 the places are 30 (tens), 8 (ones).
- Write 30 as
XXX. - Write 8 as
VIII.
Joined together, XXX + VIII gives XXXVIII.
38 digit by digit
| Place | Value | Numeral | Rule used |
|---|---|---|---|
| tens | 30 | XXX | the symbol repeated three times (the limit) |
| ones | 8 | VIII | the five symbol plus three |
Check XXXVIII by reading it back
Reading XXXVIII from left to right and adding the pieces: XXX = 30, VIII = 8. Together that is 30 + 8 = 38, so XXXVIII and 38 match.
Mistakes to avoid with XXXVIII
- Never repeat a symbol more than three times in a row. When a fourth would be needed, the subtractive form takes over.
- Only I, X and C may be placed before a larger symbol to subtract, so XXXVIII never contains forms such as VX or LC.
- Read XXXVIII as one number, not letter by letter: add the values left to right, except where a smaller symbol sits before a larger one.
Facts about the number 38
- 38 is an even number and composite, with prime factors 2 x 19.
- In binary 38 is
100110and in hexadecimal it is26. - Written out, 38 is "thirty-eight".
- The digits of 38 add up to 11.
Where you will see 38 in Roman numerals
Scholars encounter 38 written as XXXVIII when reading academic texts divided into chapters using classical formatting. University presses often retain Roman numerals for chapter headings to maintain consistency with centuries of publishing traditions.
Numbers near 38
FAQ
What is 38 in Roman numerals?
38 is written XXXVIII in Roman numerals. It is built from XXX (30), VIII (8).
How do you write 38 in lowercase Roman numerals?
Lowercase Roman numerals use the same rules, so 38 is xxxviii. Lowercase is common for page numbers in a book's preface and for outline levels.
How do I convert any number to Roman numerals?
Split the number into thousands, hundreds, tens and ones, write each part with the symbols I, V, X, L, C, D and M, then join them from largest to smallest. Or paste it into the Roman numeral converter, which also converts back.
More roman numerals
- 37 (XXXVII): previous page
- 39 (XXXIX): next page
- Roman numerals chart: the full list