ローマ数字を一覧表にしました。
表にある「アラビア数字」というのは「1」「2」「3」のように普段使っている世界共通の表記で、「ローマ数字」はドラクエやFFなどのナンバリングで見かける「II」「VI」「X」のような表記です。
英語の表記も併せて右に書いてあります。
かなり長くなっているのでいくつかのページに分けました。
このローマ数字ですが、ヴィクトリア朝(1837～1901年)に誕生し、現代でも上記したようなゲームや映画などのナンバリングや時計・音楽・競馬の着順など、様々な場所で見かけます。
ときどき「ギリシャ数字」として紹介されていたり扱われている場面を見かけますがそれは誤りです。
時計の文字盤に使われるローマ数字は、伝統的に4を「IV」でなく「IIII」という表記が多く使われています。
ローマ数字の定義がはっきりしない時代は4 をIVでなく「IIII」、9 をIXでなく「VIIII」と表記していたため、それの名残りという説や「VI」と見分けにくいどの他さまざまな説があります。
ローマ数字の定義がはっきりしない時代は4 をIVでなく「IIII」、9 をIXでなく「VIIII」と表記していたため、それの名残りという説や「VI」と見分けにくいどの他さまざまな説があります。
読み方については英語の数字と同じで、「ワン」「トゥー」「スリー」で、順序を示す場合は「ファースト」「セカンド」「サード」となります。
参考
表記には規則性があって、下記の1桁～4桁の表記を基にそれを組み合わせて表現します。
- 1桁のローマ数字
-
1 2 3 4 5 6 7 8 9 I II III IV V VI VII VIII IX - 2桁のローマ数字
-
10 20 30 40 50 60 70 80 90 X XX XXX XL L LX LXX LXXX XC - 3桁のローマ数字
-
100 200 300 400 500 600 700 800 900 C CC CCC CD D DC DCC DCCC CM - 4桁のローマ数字
-
1000 2000 3000 M MM MMM
なおローマ数字は1から3999までしかなく4000以上は表記する事ができませんので、ここにある表がすべてのローマ数字です（0の表記は存在しません）。
表では大文字で表記していますが、小文字で「ii」「vi」「x」のように表す事も出来ます。
| アラビア数字 | ローマ数字 | 英語表記 |
|---|---|---|
| 1 | I | One |
| 2 | II | Two |
| 3 | III | Three |
| 4 | IV | Four |
| 5 | V | Five |
| 6 | VI | Six |
| 7 | VII | Seven |
| 8 | VIII | Eight |
| 9 | IX | Nine |
| 10 | X | Ten |
| 11 | XI | Eleven |
| 12 | XII | Twelve |
| 13 | XIII | Thirteen |
| 14 | XIV | Fourteen |
| 15 | XV | Fifteen |
| 16 | XVI | Sixteen |
| 17 | XVII | Seventeen |
| 18 | XVIII | Eighteen |
| 19 | XIX | Nineteen |
| 20 | XX | Twenty |
| 21 | XXI | Twenty One |
| 22 | XXII | Twenty Two |
| 23 | XXIII | Twenty Three |
| 24 | XXIV | Twenty Four |
| 25 | XXV | Twenty Five |
| 26 | XXVI | Twenty Six |
| 27 | XXVII | Twenty Seven |
| 28 | XXVIII | Twenty Eight |
| 29 | XXIX | Twenty Nine |
| 30 | XXX | Thirty |
| 31 | XXXI | Thirty One |
| 32 | XXXII | Thirty Two |
| 33 | XXXIII | Thirty Three |
| 34 | XXXIV | Thirty Four |
| 35 | XXXV | Thirty Five |
| 36 | XXXVI | Thirty Six |
| 37 | XXXVII | Thirty Seven |
| 38 | XXXVIII | Thirty Eight |
| 39 | XXXIX | Thirty Nine |
| 40 | XL | Forty |
| 41 | XLI | Forty One |
| 42 | XLII | Forty Two |
| 43 | XLIII | Forty Three |
| 44 | XLIV | Forty Four |
| 45 | XLV | Forty Five |
| 46 | XLVI | Forty Six |
| 47 | XLVII | Forty Seven |
| 48 | XLVIII | Forty Eight |
| 49 | XLIX | Forty Nine |
| 50 | L | Fifty |
| 51 | LI | Fifty One |
| 52 | LII | Fifty Two |
| 53 | LIII | Fifty Three |
| 54 | LIV | Fifty Four |
| 55 | LV | Fifty Five |
| 56 | LVI | Fifty Six |
| 57 | LVII | Fifty Seven |
| 58 | LVIII | Fifty Eight |
| 59 | LIX | Fifty Nine |
| 60 | LX | Sixty |
| 61 | LXI | Sixty One |
| 62 | LXII | Sixty Two |
| 63 | LXIII | Sixty Three |
| 64 | LXIV | Sixty Four |
| 65 | LXV | Sixty Five |
| 66 | LXVI | Sixty Six |
| 67 | LXVII | Sixty Seven |
| 68 | LXVIII | Sixty Eight |
| 69 | LXIX | Sixty Nine |
| 70 | LXX | Seventy |
| 71 | LXXI | Seventy One |
| 72 | LXXII | Seventy Two |
| 73 | LXXIII | Seventy Three |
| 74 | LXXIV | Seventy Four |
| 75 | LXXV | Seventy Five |
| 76 | LXXVI | Seventy Six |
| 77 | LXXVII | Seventy Seven |
| 78 | LXXVIII | Seventy Eight |
| 79 | LXXIX | Seventy Nine |
| 80 | LXXX | Eighty |
| 81 | LXXXI | Eighty One |
| 82 | LXXXII | Eighty Two |
| 83 | LXXXIII | Eighty Three |
| 84 | LXXXIV | Eighty Four |
| 85 | LXXXV | Eighty Five |
| 86 | LXXXVI | Eighty Six |
| 87 | LXXXVII | Eighty Seven |
| 88 | LXXXVIII | Eighty Eight |
| 89 | LXXXIX | Eighty Nine |
| 90 | XC | Ninety |
| 91 | XCI | Ninety One |
| 92 | XCII | Ninety Two |
| 93 | XCIII | Ninety Three |
| 94 | XCIV | Ninety Four |
| 95 | XCV | Ninety Five |
| 96 | XCVI | Ninety Six |
| 97 | XCVII | Ninety Seven |
| 98 | XCVIII | Ninety Eight |
| 99 | XCIX | Ninety Nine |
| 100 | C | One Hundred |
| 101 | CI | One Hundred One |
| 102 | CII | One Hundred Two |
| 103 | CIII | One Hundred Three |
| 104 | CIV | One Hundred Four |
| 105 | CV | One Hundred Five |
| 106 | CVI | One Hundred Six |
| 107 | CVII | One Hundred Seven |
| 108 | CVIII | One Hundred Eight |
| 109 | CIX | One Hundred Nine |
| 110 | CX | One Hundred Ten |
| 111 | CXI | One Hundred Eleven |
| 112 | CXII | One Hundred Twelve |
| 113 | CXIII | One Hundred Thirteen |
| 114 | CXIV | One Hundred Fourteen |
| 115 | CXV | One Hundred Fifteen |
| 116 | CXVI | One Hundred Sixteen |
| 117 | CXVII | One Hundred Seventeen |
| 118 | CXVIII | One Hundred Eighteen |
| 119 | CXIX | One Hundred Nineteen |
| 120 | CXX | One Hundred Twenty |
| 121 | CXXI | One Hundred Twenty One |
| 122 | CXXII | One Hundred Twenty Two |
| 123 | CXXIII | One Hundred Twenty Three |
| 124 | CXXIV | One Hundred Twenty Four |
| 125 | CXXV | One Hundred Twenty Five |
| 126 | CXXVI | One Hundred Twenty Six |
| 127 | CXXVII | One Hundred Twenty Seven |
| 128 | CXXVIII | One Hundred Twenty Eight |
| 129 | CXXIX | One Hundred Twenty Nine |
| 130 | CXXX | One Hundred Thirty |
| 131 | CXXXI | One Hundred Thirty One |
| 132 | CXXXII | One Hundred Thirty Two |
| 133 | CXXXIII | One Hundred Thirty Three |
| 134 | CXXXIV | One Hundred Thirty Four |
| 135 | CXXXV | One Hundred Thirty Five |
| 136 | CXXXVI | One Hundred Thirty Six |
| 137 | CXXXVII | One Hundred Thirty Seven |
| 138 | CXXXVIII | One Hundred Thirty Eight |
| 139 | CXXXIX | One Hundred Thirty Nine |
| 140 | CXL | One Hundred Forty |
| 141 | CXLI | One Hundred Forty One |
| 142 | CXLII | One Hundred Forty Two |
| 143 | CXLIII | One Hundred Forty Three |
| 144 | CXLIV | One Hundred Forty Four |
| 145 | CXLV | One Hundred Forty Five |
| 146 | CXLVI | One Hundred Forty Six |
| 147 | CXLVII | One Hundred Forty Seven |
| 148 | CXLVIII | One Hundred Forty Eight |
| 149 | CXLIX | One Hundred Forty Nine |
| 150 | CL | One Hundred Fifty |
| 151 | CLI | One Hundred Fifty One |
| 152 | CLII | One Hundred Fifty Two |
| 153 | CLIII | One Hundred Fifty Three |
| 154 | CLIV | One Hundred Fifty Four |
| 155 | CLV | One Hundred Fifty Five |
| 156 | CLVI | One Hundred Fifty Six |
| 157 | CLVII | One Hundred Fifty Seven |
| 158 | CLVIII | One Hundred Fifty Eight |
| 159 | CLIX | One Hundred Fifty Nine |
| 160 | CLX | One Hundred Sixty |
| 161 | CLXI | One Hundred Sixty One |
| 162 | CLXII | One Hundred Sixty Two |
| 163 | CLXIII | One Hundred Sixty Three |
| 164 | CLXIV | One Hundred Sixty Four |
| 165 | CLXV | One Hundred Sixty Five |
| 166 | CLXVI | One Hundred Sixty Six |
| 167 | CLXVII | One Hundred Sixty Seven |
| 168 | CLXVIII | One Hundred Sixty Eight |
| 169 | CLXIX | One Hundred Sixty Nine |
| 170 | CLXX | One Hundred Seventy |
| 171 | CLXXI | One Hundred Seventy One |
| 172 | CLXXII | One Hundred Seventy Two |
| 173 | CLXXIII | One Hundred Seventy Three |
| 174 | CLXXIV | One Hundred Seventy Four |
| 175 | CLXXV | One Hundred Seventy Five |
| 176 | CLXXVI | One Hundred Seventy Six |
| 177 | CLXXVII | One Hundred Seventy Seven |
| 178 | CLXXVIII | One Hundred Seventy Eight |
| 179 | CLXXIX | One Hundred Seventy Nine |
| 180 | CLXXX | One Hundred Eighty |
| 181 | CLXXXI | One Hundred Eighty One |
| 182 | CLXXXII | One Hundred Eighty Two |
| 183 | CLXXXIII | One Hundred Eighty Three |
| 184 | CLXXXIV | One Hundred Eighty Four |
| 185 | CLXXXV | One Hundred Eighty Five |
| 186 | CLXXXVI | One Hundred Eighty Six |
| 187 | CLXXXVII | One Hundred Eighty Seven |
| 188 | CLXXXVIII | One Hundred Eighty Eight |
| 189 | CLXXXIX | One Hundred Eighty Nine |
| 190 | CXC | One Hundred Ninety |
| 191 | CXCI | One Hundred Ninety One |
| 192 | CXCII | One Hundred Ninety Two |
| 193 | CXCIII | One Hundred Ninety Three |
| 194 | CXCIV | One Hundred Ninety Four |
| 195 | CXCV | One Hundred Ninety Five |
| 196 | CXCVI | One Hundred Ninety Six |
| 197 | CXCVII | One Hundred Ninety Seven |
| 198 | CXCVIII | One Hundred Ninety Eight |
| 199 | CXCIX | One Hundred Ninety Nine |
| 200 | CC | Two Hundred |
| 201 | CCI | Two Hundred One |
| 202 | CCII | Two Hundred Two |
| 203 | CCIII | Two Hundred Three |
| 204 | CCIV | Two Hundred Four |
| 205 | CCV | Two Hundred Five |
| 206 | CCVI | Two Hundred Six |
| 207 | CCVII | Two Hundred Seven |
| 208 | CCVIII | Two Hundred Eight |
| 209 | CCIX | Two Hundred Nine |
| 210 | CCX | Two Hundred Ten |
| 211 | CCXI | Two Hundred Eleven |
| 212 | CCXII | Two Hundred Twelve |
| 213 | CCXIII | Two Hundred Thirteen |
| 214 | CCXIV | Two Hundred Fourteen |
| 215 | CCXV | Two Hundred Fifteen |
| 216 | CCXVI | Two Hundred Sixteen |
| 217 | CCXVII | Two Hundred Seventeen |
| 218 | CCXVIII | Two Hundred Eighteen |
| 219 | CCXIX | Two Hundred Nineteen |
| 220 | CCXX | Two Hundred Twenty |
| 221 | CCXXI | Two Hundred Twenty One |
| 222 | CCXXII | Two Hundred Twenty Two |
| 223 | CCXXIII | Two Hundred Twenty Three |
| 224 | CCXXIV | Two Hundred Twenty Four |
| 225 | CCXXV | Two Hundred Twenty Five |
| 226 | CCXXVI | Two Hundred Twenty Six |
| 227 | CCXXVII | Two Hundred Twenty Seven |
| 228 | CCXXVIII | Two Hundred Twenty Eight |
| 229 | CCXXIX | Two Hundred Twenty Nine |
| 230 | CCXXX | Two Hundred Thirty |
| 231 | CCXXXI | Two Hundred Thirty One |
| 232 | CCXXXII | Two Hundred Thirty Two |
| 233 | CCXXXIII | Two Hundred Thirty Three |
| 234 | CCXXXIV | Two Hundred Thirty Four |
| 235 | CCXXXV | Two Hundred Thirty Five |
| 236 | CCXXXVI | Two Hundred Thirty Six |
| 237 | CCXXXVII | Two Hundred Thirty Seven |
| 238 | CCXXXVIII | Two Hundred Thirty Eight |
| 239 | CCXXXIX | Two Hundred Thirty Nine |
| 240 | CCXL | Two Hundred Forty |
| 241 | CCXLI | Two Hundred Forty One |
| 242 | CCXLII | Two Hundred Forty Two |
| 243 | CCXLIII | Two Hundred Forty Three |
| 244 | CCXLIV | Two Hundred Forty Four |
| 245 | CCXLV | Two Hundred Forty Five |
| 246 | CCXLVI | Two Hundred Forty Six |
| 247 | CCXLVII | Two Hundred Forty Seven |
| 248 | CCXLVIII | Two Hundred Forty Eight |
| 249 | CCXLIX | Two Hundred Forty Nine |
| 250 | CCL | Two Hundred Fifty |
| 251 | CCLI | Two Hundred Fifty One |
| 252 | CCLII | Two Hundred Fifty Two |
| 253 | CCLIII | Two Hundred Fifty Three |
| 254 | CCLIV | Two Hundred Fifty Four |
| 255 | CCLV | Two Hundred Fifty Five |
| 256 | CCLVI | Two Hundred Fifty Six |
| 257 | CCLVII | Two Hundred Fifty Seven |
| 258 | CCLVIII | Two Hundred Fifty Eight |
| 259 | CCLIX | Two Hundred Fifty Nine |
| 260 | CCLX | Two Hundred Sixty |
| 261 | CCLXI | Two Hundred Sixty One |
| 262 | CCLXII | Two Hundred Sixty Two |
| 263 | CCLXIII | Two Hundred Sixty Three |
| 264 | CCLXIV | Two Hundred Sixty Four |
| 265 | CCLXV | Two Hundred Sixty Five |
| 266 | CCLXVI | Two Hundred Sixty Six |
| 267 | CCLXVII | Two Hundred Sixty Seven |
| 268 | CCLXVIII | Two Hundred Sixty Eight |
| 269 | CCLXIX | Two Hundred Sixty Nine |
| 270 | CCLXX | Two Hundred Seventy |
| 271 | CCLXXI | Two Hundred Seventy One |
| 272 | CCLXXII | Two Hundred Seventy Two |
| 273 | CCLXXIII | Two Hundred Seventy Three |
| 274 | CCLXXIV | Two Hundred Seventy Four |
| 275 | CCLXXV | Two Hundred Seventy Five |
| 276 | CCLXXVI | Two Hundred Seventy Six |
| 277 | CCLXXVII | Two Hundred Seventy Seven |
| 278 | CCLXXVIII | Two Hundred Seventy Eight |
| 279 | CCLXXIX | Two Hundred Seventy Nine |
| 280 | CCLXXX | Two Hundred Eighty |
| 281 | CCLXXXI | Two Hundred Eighty One |
| 282 | CCLXXXII | Two Hundred Eighty Two |
| 283 | CCLXXXIII | Two Hundred Eighty Three |
| 284 | CCLXXXIV | Two Hundred Eighty Four |
| 285 | CCLXXXV | Two Hundred Eighty Five |
| 286 | CCLXXXVI | Two Hundred Eighty Six |
| 287 | CCLXXXVII | Two Hundred Eighty Seven |
| 288 | CCLXXXVIII | Two Hundred Eighty Eight |
| 289 | CCLXXXIX | Two Hundred Eighty Nine |
| 290 | CCXC | Two Hundred Ninety |
| 291 | CCXCI | Two Hundred Ninety One |
| 292 | CCXCII | Two Hundred Ninety Two |
| 293 | CCXCIII | Two Hundred Ninety Three |
| 294 | CCXCIV | Two Hundred Ninety Four |
| 295 | CCXCV | Two Hundred Ninety Five |
| 296 | CCXCVI | Two Hundred Ninety Six |
| 297 | CCXCVII | Two Hundred Ninety Seven |
| 298 | CCXCVIII | Two Hundred Ninety Eight |
| 299 | CCXCIX | Two Hundred Ninety Nine |
| 300 | CCC | Three Hundred |
| 301 | CCCI | Three Hundred One |
| 302 | CCCII | Three Hundred Two |
| 303 | CCCIII | Three Hundred Three |
| 304 | CCCIV | Three Hundred Four |
| 305 | CCCV | Three Hundred Five |
| 306 | CCCVI | Three Hundred Six |
| 307 | CCCVII | Three Hundred Seven |
| 308 | CCCVIII | Three Hundred Eight |
| 309 | CCCIX | Three Hundred Nine |
| 310 | CCCX | Three Hundred Ten |
| 311 | CCCXI | Three Hundred Eleven |
| 312 | CCCXII | Three Hundred Twelve |
| 313 | CCCXIII | Three Hundred Thirteen |
| 314 | CCCXIV | Three Hundred Fourteen |
| 315 | CCCXV | Three Hundred Fifteen |
| 316 | CCCXVI | Three Hundred Sixteen |
| 317 | CCCXVII | Three Hundred Seventeen |
| 318 | CCCXVIII | Three Hundred Eighteen |
| 319 | CCCXIX | Three Hundred Nineteen |
| 320 | CCCXX | Three Hundred Twenty |
| 321 | CCCXXI | Three Hundred Twenty One |
| 322 | CCCXXII | Three Hundred Twenty Two |
| 323 | CCCXXIII | Three Hundred Twenty Three |
| 324 | CCCXXIV | Three Hundred Twenty Four |
| 325 | CCCXXV | Three Hundred Twenty Five |
| 326 | CCCXXVI | Three Hundred Twenty Six |
| 327 | CCCXXVII | Three Hundred Twenty Seven |
| 328 | CCCXXVIII | Three Hundred Twenty Eight |
| 329 | CCCXXIX | Three Hundred Twenty Nine |
| 330 | CCCXXX | Three Hundred Thirty |
| 331 | CCCXXXI | Three Hundred Thirty One |
| 332 | CCCXXXII | Three Hundred Thirty Two |
| 333 | CCCXXXIII | Three Hundred Thirty Three |
| 334 | CCCXXXIV | Three Hundred Thirty Four |
| 335 | CCCXXXV | Three Hundred Thirty Five |
| 336 | CCCXXXVI | Three Hundred Thirty Six |
| 337 | CCCXXXVII | Three Hundred Thirty Seven |
| 338 | CCCXXXVIII | Three Hundred Thirty Eight |
| 339 | CCCXXXIX | Three Hundred Thirty Nine |
| 340 | CCCXL | Three Hundred Forty |
| 341 | CCCXLI | Three Hundred Forty One |
| 342 | CCCXLII | Three Hundred Forty Two |
| 343 | CCCXLIII | Three Hundred Forty Three |
| 344 | CCCXLIV | Three Hundred Forty Four |
| 345 | CCCXLV | Three Hundred Forty Five |
| 346 | CCCXLVI | Three Hundred Forty Six |
| 347 | CCCXLVII | Three Hundred Forty Seven |
| 348 | CCCXLVIII | Three Hundred Forty Eight |
| 349 | CCCXLIX | Three Hundred Forty Nine |
| 350 | CCCL | Three Hundred Fifty |
| 351 | CCCLI | Three Hundred Fifty One |
| 352 | CCCLII | Three Hundred Fifty Two |
| 353 | CCCLIII | Three Hundred Fifty Three |
| 354 | CCCLIV | Three Hundred Fifty Four |
| 355 | CCCLV | Three Hundred Fifty Five |
| 356 | CCCLVI | Three Hundred Fifty Six |
| 357 | CCCLVII | Three Hundred Fifty Seven |
| 358 | CCCLVIII | Three Hundred Fifty Eight |
| 359 | CCCLIX | Three Hundred Fifty Nine |
| 360 | CCCLX | Three Hundred Sixty |
| 361 | CCCLXI | Three Hundred Sixty One |
| 362 | CCCLXII | Three Hundred Sixty Two |
| 363 | CCCLXIII | Three Hundred Sixty Three |
| 364 | CCCLXIV | Three Hundred Sixty Four |
| 365 | CCCLXV | Three Hundred Sixty Five |
| 366 | CCCLXVI | Three Hundred Sixty Six |
| 367 | CCCLXVII | Three Hundred Sixty Seven |
| 368 | CCCLXVIII | Three Hundred Sixty Eight |
| 369 | CCCLXIX | Three Hundred Sixty Nine |
| 370 | CCCLXX | Three Hundred Seventy |
| 371 | CCCLXXI | Three Hundred Seventy One |
| 372 | CCCLXXII | Three Hundred Seventy Two |
| 373 | CCCLXXIII | Three Hundred Seventy Three |
| 374 | CCCLXXIV | Three Hundred Seventy Four |
| 375 | CCCLXXV | Three Hundred Seventy Five |
| 376 | CCCLXXVI | Three Hundred Seventy Six |
| 377 | CCCLXXVII | Three Hundred Seventy Seven |
| 378 | CCCLXXVIII | Three Hundred Seventy Eight |
| 379 | CCCLXXIX | Three Hundred Seventy Nine |
| 380 | CCCLXXX | Three Hundred Eighty |
| 381 | CCCLXXXI | Three Hundred Eighty One |
| 382 | CCCLXXXII | Three Hundred Eighty Two |
| 383 | CCCLXXXIII | Three Hundred Eighty Three |
| 384 | CCCLXXXIV | Three Hundred Eighty Four |
| 385 | CCCLXXXV | Three Hundred Eighty Five |
| 386 | CCCLXXXVI | Three Hundred Eighty Six |
| 387 | CCCLXXXVII | Three Hundred Eighty Seven |
| 388 | CCCLXXXVIII | Three Hundred Eighty Eight |
| 389 | CCCLXXXIX | Three Hundred Eighty Nine |
| 390 | CCCXC | Three Hundred Ninety |
| 391 | CCCXCI | Three Hundred Ninety One |
| 392 | CCCXCII | Three Hundred Ninety Two |
| 393 | CCCXCIII | Three Hundred Ninety Three |
| 394 | CCCXCIV | Three Hundred Ninety Four |
| 395 | CCCXCV | Three Hundred Ninety Five |
| 396 | CCCXCVI | Three Hundred Ninety Six |
| 397 | CCCXCVII | Three Hundred Ninety Seven |
| 398 | CCCXCVIII | Three Hundred Ninety Eight |
| 399 | CCCXCIX | Three Hundred Ninety Nine |
| 400 | CD | Four Hundred |
| 401 | CDI | Four Hundred One |
| 402 | CDII | Four Hundred Two |
| 403 | CDIII | Four Hundred Three |
| 404 | CDIV | Four Hundred Four |
| 405 | CDV | Four Hundred Five |
| 406 | CDVI | Four Hundred Six |
| 407 | CDVII | Four Hundred Seven |
| 408 | CDVIII | Four Hundred Eight |
| 409 | CDIX | Four Hundred Nine |
| 410 | CDX | Four Hundred Ten |
| 411 | CDXI | Four Hundred Eleven |
| 412 | CDXII | Four Hundred Twelve |
| 413 | CDXIII | Four Hundred Thirteen |
| 414 | CDXIV | Four Hundred Fourteen |
| 415 | CDXV | Four Hundred Fifteen |
| 416 | CDXVI | Four Hundred Sixteen |
| 417 | CDXVII | Four Hundred Seventeen |
| 418 | CDXVIII | Four Hundred Eighteen |
| 419 | CDXIX | Four Hundred Nineteen |
| 420 | CDXX | Four Hundred Twenty |
| 421 | CDXXI | Four Hundred Twenty One |
| 422 | CDXXII | Four Hundred Twenty Two |
| 423 | CDXXIII | Four Hundred Twenty Three |
| 424 | CDXXIV | Four Hundred Twenty Four |
| 425 | CDXXV | Four Hundred Twenty Five |
| 426 | CDXXVI | Four Hundred Twenty Six |
| 427 | CDXXVII | Four Hundred Twenty Seven |
| 428 | CDXXVIII | Four Hundred Twenty Eight |
| 429 | CDXXIX | Four Hundred Twenty Nine |
| 430 | CDXXX | Four Hundred Thirty |
| 431 | CDXXXI | Four Hundred Thirty One |
| 432 | CDXXXII | Four Hundred Thirty Two |
| 433 | CDXXXIII | Four Hundred Thirty Three |
| 434 | CDXXXIV | Four Hundred Thirty Four |
| 435 | CDXXXV | Four Hundred Thirty Five |
| 436 | CDXXXVI | Four Hundred Thirty Six |
| 437 | CDXXXVII | Four Hundred Thirty Seven |
| 438 | CDXXXVIII | Four Hundred Thirty Eight |
| 439 | CDXXXIX | Four Hundred Thirty Nine |
| 440 | CDXL | Four Hundred Forty |
| 441 | CDXLI | Four Hundred Forty One |
| 442 | CDXLII | Four Hundred Forty Two |
| 443 | CDXLIII | Four Hundred Forty Three |
| 444 | CDXLIV | Four Hundred Forty Four |
| 445 | CDXLV | Four Hundred Forty Five |
| 446 | CDXLVI | Four Hundred Forty Six |
| 447 | CDXLVII | Four Hundred Forty Seven |
| 448 | CDXLVIII | Four Hundred Forty Eight |
| 449 | CDXLIX | Four Hundred Forty Nine |
| 450 | CDL | Four Hundred Fifty |
| 451 | CDLI | Four Hundred Fifty One |
| 452 | CDLII | Four Hundred Fifty Two |
| 453 | CDLIII | Four Hundred Fifty Three |
| 454 | CDLIV | Four Hundred Fifty Four |
| 455 | CDLV | Four Hundred Fifty Five |
| 456 | CDLVI | Four Hundred Fifty Six |
| 457 | CDLVII | Four Hundred Fifty Seven |
| 458 | CDLVIII | Four Hundred Fifty Eight |
| 459 | CDLIX | Four Hundred Fifty Nine |
| 460 | CDLX | Four Hundred Sixty |
| 461 | CDLXI | Four Hundred Sixty One |
| 462 | CDLXII | Four Hundred Sixty Two |
| 463 | CDLXIII | Four Hundred Sixty Three |
| 464 | CDLXIV | Four Hundred Sixty Four |
| 465 | CDLXV | Four Hundred Sixty Five |
| 466 | CDLXVI | Four Hundred Sixty Six |
| 467 | CDLXVII | Four Hundred Sixty Seven |
| 468 | CDLXVIII | Four Hundred Sixty Eight |
| 469 | CDLXIX | Four Hundred Sixty Nine |
| 470 | CDLXX | Four Hundred Seventy |
| 471 | CDLXXI | Four Hundred Seventy One |
| 472 | CDLXXII | Four Hundred Seventy Two |
| 473 | CDLXXIII | Four Hundred Seventy Three |
| 474 | CDLXXIV | Four Hundred Seventy Four |
| 475 | CDLXXV | Four Hundred Seventy Five |
| 476 | CDLXXVI | Four Hundred Seventy Six |
| 477 | CDLXXVII | Four Hundred Seventy Seven |
| 478 | CDLXXVIII | Four Hundred Seventy Eight |
| 479 | CDLXXIX | Four Hundred Seventy Nine |
| 480 | CDLXXX | Four Hundred Eighty |
| 481 | CDLXXXI | Four Hundred Eighty One |
| 482 | CDLXXXII | Four Hundred Eighty Two |
| 483 | CDLXXXIII | Four Hundred Eighty Three |
| 484 | CDLXXXIV | Four Hundred Eighty Four |
| 485 | CDLXXXV | Four Hundred Eighty Five |
| 486 | CDLXXXVI | Four Hundred Eighty Six |
| 487 | CDLXXXVII | Four Hundred Eighty Seven |
| 488 | CDLXXXVIII | Four Hundred Eighty Eight |
| 489 | CDLXXXIX | Four Hundred Eighty Nine |
| 490 | CDXC | Four Hundred Ninety |
| 491 | CDXCI | Four Hundred Ninety One |
| 492 | CDXCII | Four Hundred Ninety Two |
| 493 | CDXCIII | Four Hundred Ninety Three |
| 494 | CDXCIV | Four Hundred Ninety Four |
| 495 | CDXCV | Four Hundred Ninety Five |
| 496 | CDXCVI | Four Hundred Ninety Six |
| 497 | CDXCVII | Four Hundred Ninety Seven |
| 498 | CDXCVIII | Four Hundred Ninety Eight |
| 499 | CDXCIX | Four Hundred Ninety Nine |
ローマ数字はすべて表示できるんじゃなくて3999までじゃないと表示できないと言うことを初めて知りました
3999までしかないのは5000を表すアルファベットが存在しないからだね。
4を表すには5から1引くという意味で「Ⅳ」と表すんだから、4000を表すには5000から1000を引いた形にしないといけないけど、5000のアルファベットが存在しないから作れない。
すごーーーーーーーーーーーーーーーーーーーーーーーいO.O
少し覚えられたよー
凄い勉強になってテスト受かりそうです。ありがとうございます！
Ｘの上に－を入れる事で10000を表せるみたいですよ
ローマ数字には同じアルファベットを４つ以上続けてはいけないという法則があります。
そのため３９９９までしか表記できず、まだゼロの概念がない時代でしたので、ゼロも表すことができないのが特徴の一つです。
半日ぐらい( ﾟ ρ ﾟ )ﾎﾞｰって見ててようやく覚えられた
使う事あんのかな…
ナゼ1000や2000などはあるのに4000はないんですかね？
誰か4000のローマ数字見つけたら、ぜひ教えてください。
3999まででよかったのは
単位を繰り上げる方が計算がらくだからそうなってんだけどね
今での単位系の中に1000倍単位で繰り上げをしているわけで
昔も通貨は同じ原理。古い欧州の国を見ると皆単位を繰り上げていた
単位を買えると小さい数字の差し引きで計算できるしかえって計算しやすい
アルファベットのみの表記として一般に使われるものでは3999までですが、CIↃ＝1000と表記する方法を用いればいくらでも表記することが可能です。詳細はウィキページの下の方をご参照ください。
I,V,Xの組み合わせは目にしてましたが、L,D,Mの存在は知りませんでした。
スーパーボウル51回はどうなるのか？で検索して勉強になりましたけど、3999でオシマイなのは何故なんでしょうね？
１～１０までの足し算引き算は
アラビア数字を頭の中でローマ数字に変換してやると
正確にできると思います
５のカタマリを容易に発見でき
１～３までは一本棒のためだと思います
慣れてくるとそろばんよりも想像しやすいので
そろばんの暗算が苦手な人でも
大量に正確に早く疲れずに計算できると思います
ローマ数字も時計の文字盤で12までは知っていましたが、
何と、全ての数字を表記できるとは、驚きでした。
しかも、なかなか合理的で、これを考えだした人の頭の構造は大したものですね。
一つお利口さんになったようで、サイトの運営者さんにお礼を。
どうも有り難うございました。
めったに使わないけど、なにか変わった感じでカウントしたときに便利ですよね。
一十百千の位を大きいほうから組み合わせるだけで作れますし。
しかし3と8のときは長くなってしまう・・・
2000+400+30+2
MMCDXXXII
ローマ数字
一桁１－９・二桁１０－９９・三桁１００ー９９９は出来る事ですが四桁になると１０００ー３９９９まで