Roman Numeral Converter
Convert between decimal numbers and Roman numerals instantly.
Quick reference:
M
1000
CM
900
D
500
CD
400
C
100
XC
90
L
50
XL
40
X
10
IX
9
V
5
IV
4
I
1
Convert between decimal numbers and Roman numerals instantly.
Quick reference:
M
1000
CM
900
D
500
CD
400
C
100
XC
90
L
50
XL
40
X
10
IX
9
V
5
IV
4
I
1
Convert numbers to Roman numerals and back. Works for years, clocks, chapter numbers. Supports 1–3999. This page is part of UtilsNest's Finance Calculators, so you can move between related workflows without leaving the browser.
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Explore more tools in Finance Calculators to handle adjacent tasks faster.
Open Finance CalculatorsStandard Roman numerals go up to 3999 (MMMCMXCIX). Numbers above that require overline notation or are non-standard.
MMXXIV. M=1000, M=1000, XX=20, IV=4.