Roman Numerals 1 to 100: Full Chart, Rules and Common Mistakes

You need roman numerals 1 to 100 for an outline, a tattoo, a clock face or a homework sheet, and you want them right the first time. Below is the full chart, split into two compact tables so you can scan it fast.

After the chart you get the few rules that make every number work, the mistakes people make most (like IC for 99), how to write years, and why so many clocks break the rules with IIII. If you just want an answer for one number, the Roman numeral converter does it in one step.

What Are the Roman Numerals 1 to 100?

The Roman numerals from 1 to 100 run from I to C, built from I, V, X, L and C. Read each table across: every pair of columns shows a number and its numeral.

Roman numerals 1 to 50

Roman numerals 51 to 100

Every value in these tables was generated by the same rules our converter uses, then checked by reading each numeral back to a number.

A few patterns make the chart easy to memorize. Every number ending in 4 ends in IV, and every number ending in 9 ends in IX. The 40s all start with XL and the 90s all start with XC. Once you know the tens and the ones, you just glue them together: 73 is LXX (70) plus III (3), so LXXIII.

What Do the 7 Roman Numeral Symbols Mean?

There are seven Roman numeral symbols: I is 1, V is 5, X is 10, L is 50, C is 100, D is 500 and M is 1,000. Every Roman numeral you will ever read is made of these seven letters.

Only I, X, C and M (the powers of ten) can repeat. V, L and D never appear twice in a row, because VV would just be X, LL would be C and DD would be M.

There is no symbol for zero. The Roman system was built for counting and recording, not for place value math. That is the big difference from the Arabic numerals we use today, where the 2 in 20 and the 2 in 200 mean different things because of where they sit. If you like comparing number systems, the same idea of place value powers the binary to decimal converter, just with base 2 instead of base 10.

What Are the Rules for Writing Roman Numerals?

Write Roman numerals from largest to smallest and add them up, except for six subtractive pairs where a smaller symbol before a larger one is subtracted. That covers every number from 1 to 3,999.

Three rules keep the system tidy:

1. Only I, X and C can subtract. V, L and D never go in front of a larger symbol, so VX for 5 is wrong. It is just V.
2. A symbol can only subtract from the next two larger symbols. I goes before V and X. X goes before L and C. C goes before D and M. Nothing else.
3. No symbol repeats more than three times in a row. 3 is III, but 4 is IV, not IIII. 30 is XXX, but 40 is XL.

Common mistakes to avoid

• IC for 99. I can only subtract from V and X. The right answer is XC (90) plus IX (9), so XCIX.
• XM for 990. X can only subtract from L and C. Write CM (900) plus XC (90): CMXC.
• VV for 10. Two fives is just X. V, L and D are never doubled.
• IL for 49. Same problem as IC. Write XL (40) plus IX (9): XLIX.
• IIX for 8. Only one symbol can subtract at a time. 8 is VIII.

A quick check: break the number into thousands, hundreds, tens and ones, and write each part on its own. If you get a pair that is not on the list of six, something went wrong.

How Do You Write Years in Roman Numerals?

To write a year in Roman numerals, split it into thousands, hundreds, tens and ones, convert each part with the table below, and join them. The year 2026 is MM (2,000) plus XX (20) plus VI (6), so MMXXVI.

Standard Roman numerals stop at 3,999 (MMMCMXCIX), so there is no standard way to write 4,000 or more with M alone.

Here are some years people look up often:

Want to know what weekday a Roman numeral date fell on, like a wedding date engraved on a ring? Convert it to a regular date first, then use the day of the week calculator. For a birth year on a cornerstone or a certificate, the age calculator tells you exactly how long ago it was.

Why Do Clocks Show IIII Instead of IV?

Many clocks show IIII for 4 because of long clockmaking tradition, not because IV is wrong. IV is the standard form, and IIII on a dial is a style choice so common it is called the watchmaker’s four.

Nobody has a single proven reason for it. The explanations you will hear most are about looks: IIII sits opposite VIII and balances its visual weight, and it means the dial uses I alone for the first four hours, V for the next four and X for the last four. The Romans themselves often wrote 4 as IIII, so it is not a modern invention.

The takeaway for you: if you are reading a clock, IIII and IV both mean 4. If you are writing a number for school, a document or a design, use IV. IV is the form teachers and converters expect.

How Do You Write Numbers Above 3,999 in Roman Numerals?

Numbers above 3,999 use a bar over a numeral, called a vinculum, which multiplies its value by 1,000. A V with a bar over it means 5,000, and an X with a bar means 10,000.

• 4,000 is IV with a bar over both letters (4 times 1,000).
• 5,000 is V with a bar.
• 10,000 is X with a bar.
• 1,000,000 is M with a bar (1,000 times 1,000).

So 5,026 would be V with a bar followed by XXVI. The catch is that most keyboards and fonts do not have a clean overline, so you rarely see this outside textbooks. In real life, very large numbers are written with Arabic numerals or in powers of ten. If you work with big values often, the scientific notation converter is a far more practical tool than a row of barred letters.

Where Are Roman Numerals Used Today?

You still see Roman numerals in sports, royal and papal names, book chapters, outlines, clock faces and film copyright years. They signal something formal, traditional or ongoing.

• The Super Bowl. The NFL started using Roman numerals with Super Bowl V in 1971. It made one exception: Super Bowl 50 used Arabic numerals because the league felt a lone L did not work on the logo, then went back to Roman numerals with Super Bowl LI.
• Monarchs and popes. King Charles III of the United Kingdom and Pope Leo XIV both carry numerals that show their place in a line of rulers with the same name.
• Books and outlines. Front matter pages are often numbered i, ii, iii in lowercase, and many outlines use I, II, III for main points.
• Movie and TV credits. Copyright years at the end of credits are often in Roman numerals, such as MCMXCIX for 1999 or MMXXVI for 2026.
• Sequels and events. Film sequels, wrestling events and anniversaries often use them too.

For games played in 2026 and later, subtract 1966 from the year to get the Super Bowl number. Super Bowl LX was played in February 2026.

Need to check a numeral from a credit roll or a cornerstone? Paste it into the Roman numeral converter and get the number back in a second.

Quick Recap

• Roman numerals 1 to 100 use I, V, X, L and C, from I (1) to C (100).
• Only I, X and C subtract, and only from the next two larger symbols.
• No symbol repeats more than three times, so 4 is IV and 40 is XL.
• Write years one place at a time: 2026 is MM + XX + VI = MMXXVI.
• A bar over a numeral multiplies it by 1,000 for numbers above 3,999.

Frequently Asked Questions

Sources

1. Britannica Kids: Roman numeral, subtractive pairs, three repeat limit, bar multiplies by 1,000
2. Encyclopaedia Britannica: Roman numerals, the seven symbols and their values
3. NPR: NFL says when it comes to Super Bowl 50, L is for losers, Super Bowl V first used Roman numerals; Super Bowl 50 exception; return with LI

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