羅馬數字係古時羅馬使嚟記數嘅方法,而今重不時用到。
羅馬數字一共有七個,即 I(1)、V(5)、X(10)、L(50)、C(100)、D(500)同埋 M(1000)。有套規則寫晒正整數。羅馬數字冇「0」。一般認為羅馬數字只用來記數,唔係運算。
| 羅馬數字 |
數值 |
拉丁文 |
| Ⅰ |
1 |
uno |
| Ⅱ |
2 |
duo |
| Ⅲ |
3 |
tres |
| Ⅳ |
4 |
quattuor |
| Ⅴ |
5 |
quinque |
| Ⅵ |
6 |
sex |
| Ⅶ |
7 |
septem |
| Ⅷ |
8 |
octo |
| Ⅸ |
9 |
novem |
| Ⅹ |
10 |
decem |
| Ⅺ |
11 |
undecim |
| Ⅻ |
12 |
duodecim |
| ⅩⅢ |
13 |
tresdecim |
| ⅩⅣ |
14 |
quattuordecim |
| ⅩⅤ |
15 |
quindecim |
| ⅩⅥ |
16 |
sedecim |
| ⅩⅦ |
17 |
septendecim |
| ⅩⅧ |
18 |
duodeviginti |
| ⅩⅨ |
19 |
undeviginti |
| ⅩⅩ |
20 |
viginti |
| ⅩⅪ |
21 |
viginti unus |
| ⅩⅫ |
22 |
viginti duo |
| ⅩⅩⅧ |
28 |
duodetriginta |
| ⅩⅩⅨ |
29 |
undetriginta |
| ⅩⅩⅩ |
30 |
triginta |
| ⅩⅬ |
40 |
quadraginta |
| Ⅼ |
50 |
quinquaginta |
| ⅬⅩ |
60 |
sexaginta |
| ⅬⅩⅩ |
70 |
septuaginta |
| ⅬⅩⅩⅩ |
80 |
octoginta |
| ⅩⅭ |
90 |
nonaginta |
| ⅩⅭⅨ |
99 |
nonaginta novem |
| Ⅽ |
100 |
centum |
| ⅭⅠ |
101 |
centum et unus |
| ⅭⅡ |
102 |
|
| ⅭⅢ |
103 |
|
| ⅭⅩⅭⅨ |
199 |
centum nonaginta novem |
| ⅭⅭ |
200 |
ducenti |
| ⅭⅭⅭ |
300 |
trecenti |
| ⅭⅮ |
400 |
|
| Ⅾ |
500 |
quincenti |
| DCCC |
800 |
|
| CM |
900 |
|
|
| 羅馬數字 |
數值 |
拉丁文 |
| Ⅿ |
1,000 |
mille |
| ⅯⅭⅮ |
1,400 |
|
| ⅯⅮ |
1,500 |
mille quincenti |
| ⅯⅮⅭⅭⅭ |
1,800 |
|
| ⅯⅮⅭⅭⅭⅬⅩⅩⅩ |
1,880 |
|
| ⅯⅮⅭⅭⅭⅬⅩⅩⅩⅣ |
1,884 |
|
| ⅯⅮⅭⅭⅭⅬⅩⅩⅩⅨ |
1,889 |
|
| ⅯⅮⅭⅭⅭⅩⅭ |
1,890 |
|
| ⅯⅮⅭⅭⅭⅩⅭⅨ |
1,899 |
|
| ⅯⅭⅯ |
1,900 |
|
| ⅯⅭⅯⅬⅩⅩⅩⅨ |
1,989 |
|
| ⅯⅭⅯⅩⅭ |
1,990 |
|
| ⅯⅭⅯⅩⅭⅧ |
1,998 |
|
| ⅯⅭⅯⅩⅭⅨ |
1,999 |
|
| ⅯⅯ |
2,000 |
duo milia |
| ⅯⅯⅠ |
2,001 |
|
| ⅯⅯⅣ |
2,004 |
|
| ⅯⅯⅤ |
2,005 |
|
| ⅯⅯⅨ |
2,009 |
|
| ⅯⅯⅩ |
2,010 |
|
| ⅯⅯⅩⅬ |
2,040 |
|
| ⅯⅯⅬ |
2,050 |
|
| MMLX |
2,060 |
|
| ⅯⅯⅩⅭ |
2,090 |
|
| ⅯⅯⅭ |
2,100 |
|
| ⅯⅯⅭⅭ |
2,200 |
|
| ⅯⅯⅭⅯ |
2,900 |
|
| ⅯⅯⅯ |
3,000 |
tria milia |
| ⅯⅯⅯⅭⅭⅭⅩⅩⅩⅢ |
3,333 |
tria milia trecenti triginta tres |
| ⅯⅯⅯⅮⅭⅭⅭⅬⅩⅩⅩⅧ |
3,888 |
|
| Ⅳ |
4,000 |
quattuor milia |
| ⅣⅭⅮⅩⅬⅣ |
4,444 |
|
| ⅣⅮⅭⅭⅭⅬⅩⅩⅩⅧ |
4,888 |
|
| ⅣⅭⅯⅩⅭⅠⅩ |
4,999 |
|
| V |
5,000 |
quinque milia |
| X |
10,000 |
|
| L |
50,000 |
|
| C |
100,000 |
|
| D |
500,000 |
|
| M |
1,000,000 |
|
|