1,001 in Roman Numerals

MI

1,001 in Roman numerals is MI, and is spelled one thousand one.

How 1,001 breaks down

To write 1,001 in Roman numerals, combine M (1,000) and I (1) to get MI.

ValueRoman
1,000M
1I
1,001MI

You can open 1,001 in the converter or browse the full Roman numerals chart.