Symbol representing this block in the Unidings font

Halfwidth and Fullwidth Forms

Block from U+FF00 to U+FFEF. This block was introduced in Unicode version 1.1 (1993). It contains 225 codepoints.

The Wikipedia provides the following information on block Halfwidth and Fullwidth Forms:

In CJK (Chinese, Japanese and Korean) computing, graphic characters are traditionally classed into fullwidth (in Taiwan and Hong Kong: 全形; in CJK and Japanese: 全角) and halfwidth (in Taiwan and Hong Kong: 半形; in CJK and Japanese: 半角) characters. With fixed-width fonts, a halfwidth character occupies half the width of a fullwidth character, hence the name.

In the days of computer terminals and text mode computing, characters were normally laid out in a grid, often 80 columns by 24 or 25 lines. Each character was displayed as a small dot matrix, often about 8 pixels wide, and an SBCS (single byte character set) was generally used to encode characters of western languages.

For a number of practical and aesthetic reasons, Han characters would need to be twice as wide as these fixed-width SBCS characters. These "fullwidth characters" were typically encoded in a DBCS (double byte character set), although less common systems used other variable-width character sets that used more bytes per character.

Halfwidth and Fullwidth Forms is also the name of a Unicode block U+FF00–FFEF.

Chart at Unicode.org (PDF)
Block at Decode Unicode

  1. FF00
  2. !
  3. "
  4. #
  5. $
  6. %
  7. &
  8. '
  9. (
  10. )
  11. *
  12. +
  13. ,
  14. -
  15. .
  16. /
  17. 0
  18. 1
  19. 2
  20. 3
  21. 4
  22. 5
  23. 6
  24. 7
  25. 8
  26. 9
  27. :
  28. ;
  29. <
  30. =
  31. >
  32. ?
  33. @
  34. A
  35. B
  36. C
  37. D
  38. E
  39. F
  40. G
  41. H
  42. I
  43. J
  44. K
  45. L
  46. M
  47. N
  48. O
  49. P
  50. Q
  51. R
  52. S
  53. T
  54. U
  55. V
  56. W
  57. X
  58. Y
  59. Z
  60. [
  61. \
  62. ]
  63. ^
  64. _
  65. `
  66. a
  67. b
  68. c
  69. d
  70. e
  71. f
  72. g
  73. h
  74. i
  75. j
  76. k
  77. l
  78. m
  79. n
  80. o
  81. p
  82. q
  83. r
  84. s
  85. t
  86. u
  87. v
  88. w
  89. x
  90. y
  91. z
  92. {
  93. |
  94. }
  95. ~
  96. ⦅
  97. ⦆
  98. 。
  99. 「
  100. 」
  101. 、
  102. ・
  103. ヲ
  104. ァ
  105. ィ
  106. ゥ
  107. ェ
  108. ォ
  109. ャ
  110. ュ
  111. ョ
  112. ッ
  113. ー
  114. ア
  115. イ
  116. ウ
  117. エ
  118. オ
  119. カ
  120. キ
  121. ク
  122. ケ
  123. コ
  124. サ
  125. シ
  126. ス
  127. セ
  128. ソ
  129. タ
  130. チ
  131. ツ
  132. テ
  133. ト
  134. ナ
  135. ニ
  136. ヌ
  137. ネ
  138. ノ
  139. ハ
  140. ヒ
  141. フ
  142. ヘ
  143. ホ
  144. マ
  145. ミ
  146. ム
  147. メ
  148. モ
  149. ヤ
  150. ユ
  151. ヨ
  152. ラ
  153. リ
  154. ル
  155. レ
  156. ロ
  157. ワ
  158. ン
  159. ゙
  160. ゚
  161. ᅠ
  162. ᄀ
  163. ᄁ
  164. ᆪ
  165. ᄂ
  166. ᆬ
  167. ᆭ
  168. ᄃ
  169. ᄄ
  170. ᄅ
  171. ᆰ
  172. ᆱ
  173. ᆲ
  174. ᆳ
  175. ᆴ
  176. ᆵ
  177. ᄚ
  178. ᄆ
  179. ᄇ
  180. ᄈ
  181. ᄡ
  182. ᄉ
  183. ᄊ
  184. ᄋ
  185. ᄌ
  186. ᄍ
  187. ᄎ
  188. ᄏ
  189. ᄐ
  190. ᄑ
  191. ᄒ
  192. FFBF
  193. FFC0
  194. FFC1
  195. ᅡ
  196. ᅢ
  197. ᅣ
  198. ᅤ
  199. ᅥ
  200. ᅦ
  201. FFC8
  202. FFC9
  203. ᅧ
  204. ᅨ
  205. ᅩ
  206. ᅪ
  207. ᅫ
  208. ᅬ
  209. FFD0
  210. FFD1
  211. ᅭ
  212. ᅮ
  213. ᅯ
  214. ᅰ
  215. ᅱ
  216. ᅲ
  217. FFD8
  218. FFD9
  219. ᅳ
  220. ᅴ
  221. ᅵ
  222. FFDD
  223. FFDE
  224. FFDF
  225. ¢
  226. £
  227. ¬
  228.  ̄
  229. ¦
  230. ¥
  231. ₩
  232. FFE7
  233. │
  234. ←
  235. ↑
  236. →
  237. ↓
  238. ■
  239. ○
  240. FFEF