Roman Numerals
Convert Roman numerals
Roman Numerals Reference
I
1
V
5
X
10
L
50
C
100
D
500
M
1000
Frequently Asked Questions
What are Roman numerals?
Roman numerals are a numeral system from ancient Rome using letters: I(1), V(5), X(10), L(50), C(100), D(500), M(1000). They are still used for clocks, outlines, and dates.
How do I read Roman numerals?
Add values when smaller follows larger (VI=6). Subtract when smaller precedes larger (IV=4). Never subtract more than one symbol. Maximum three consecutive same symbols (III=3, but 4=IV not IIII).
What is the largest number in Roman numerals?
Standard Roman numerals go up to 3,999 (MMMCMXCIX). For larger numbers, a bar over a numeral multiplies it by 1,000. For example, V̄ = 5,000.