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ASCII Table

Complete ASCII table with all 256 characters (0–255). Quickly look up decimal, hexadecimal, octal, binary values, HTML entities, and character names for standard ASCII and Latin-1 Supplement.

ASCII Table Reference

ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns a numeric value to letters, digits, punctuation marks, and control characters. Originally defined for 7-bit values (0–127), the extended range (128–255) covers the Latin-1 Supplement and Windows-1252 characters used throughout Western European computing.

How to Read the Table

Each character is identified by four equivalent numeric representations:

  • Decimal (Dec) — the base-10 value most commonly referenced in code (65 = A)
  • Hexadecimal (Hex) — base-16, widely used in URLs, CSS color codes, and byte inspection (41 = A)
  • Octal (Oct) — base-8, seen in Unix file permissions and legacy C escape sequences (101 = A)
  • Binary (Bin) — base-2, shows the raw bit pattern stored in memory (01000001 = A)

ASCII vs. Unicode

Standard ASCII covers only 128 characters (0–127). Unicode extends this to over a million code points, but the first 128 Unicode values are identical to ASCII, preserving backwards compatibility. The extended range (128–255) shown here follows Latin-1 Supplement (ISO 8859-1) and Windows-1252 — the two encodings most commonly encountered in legacy Western European text files and HTTP responses that omit an explicit charset declaration.

When your text displays garbled characters like é instead of é, it usually means a UTF-8 encoded document is being read as Windows-1252 or vice versa.

Control Characters

Dec Hex Oct Bin Char HTML Entity Name
0 00 000 00000000 NUL — Null
1 01 001 00000001 SOH — Start of Heading
2 02 002 00000010 STX — Start of Text
3 03 003 00000011 ETX — End of Text
4 04 004 00000100 EOT — End of Transmission
5 05 005 00000101 ENQ — Enquiry
6 06 006 00000110 ACK — Acknowledge
7 07 007 00000111 BEL — Bell
8 08 010 00001000 BS — Backspace
9 09 011 00001001 HT — Horizontal Tab
10 0A 012 00001010 LF — Line Feed
11 0B 013 00001011 VT — Vertical Tab
12 0C 014 00001100 FF — Form Feed
13 0D 015 00001101 CR — Carriage Return
14 0E 016 00001110 SO — Shift Out
15 0F 017 00001111 SI — Shift In
16 10 020 00010000 DLE — Data Link Escape
17 11 021 00010001 DC1 — Device Control 1
18 12 022 00010010 DC2 — Device Control 2
19 13 023 00010011 DC3 — Device Control 3
20 14 024 00010100 DC4 — Device Control 4
21 15 025 00010101 NAK — Negative Acknowledge
22 16 026 00010110 SYN — Synchronous Idle
23 17 027 00010111 ETB — End of Transmission Block
24 18 030 00011000 CAN — Cancel
25 19 031 00011001 EM — End of Medium
26 1A 032 00011010 SUB — Substitute
27 1B 033 00011011 ESC — Escape
28 1C 034 00011100 FS — File Separator
29 1D 035 00011101 GS — Group Separator
30 1E 036 00011110 RS — Record Separator
31 1F 037 00011111 US — Unit Separator
127 7F 177 01111111 DEL — Delete

Punctuation & Symbols

Dec Hex Oct Bin Char HTML Entity Name
32 20 040 00100000 — Space
33 21 041 00100001 — Exclamation Mark
34 22 042 00100010 " Quotation Mark
35 23 043 00100011 — Number Sign
36 24 044 00100100 — Dollar Sign
37 25 045 00100101 — Percent Sign
38 26 046 00100110 & Ampersand
39 27 047 00100111 ' Apostrophe
40 28 050 00101000 — Left Parenthesis
41 29 051 00101001 — Right Parenthesis
42 2A 052 00101010 — Asterisk
43 2B 053 00101011 — Plus Sign
44 2C 054 00101100 — Comma
45 2D 055 00101101 — Hyphen-Minus
46 2E 056 00101110 — Full Stop
47 2F 057 00101111 — Solidus
58 3A 072 00111010 — Colon
59 3B 073 00111011 — Semicolon
60 3C 074 00111100 < Less-Than Sign
61 3D 075 00111101 — Equals Sign
62 3E 076 00111110 > Greater-Than Sign
63 3F 077 00111111 — Question Mark
64 40 100 01000000 — Commercial At
91 5B 133 01011011 — Left Square Bracket
92 5C 134 01011100 — Reverse Solidus
93 5D 135 01011101 — Right Square Bracket
94 5E 136 01011110 — Circumflex Accent
95 5F 137 01011111 — Low Line
96 60 140 01100000 — Grave Accent
123 7B 173 01111011 — Left Curly Bracket
124 7C 174 01111100 — Vertical Line
125 7D 175 01111101 — Right Curly Bracket
126 7E 176 01111110 — Tilde

Digits

Dec Hex Oct Bin Char HTML Entity Name
48 30 060 00110000 — Digit Zero
49 31 061 00110001 — Digit One
50 32 062 00110010 — Digit Two
51 33 063 00110011 — Digit Three
52 34 064 00110100 — Digit Four
53 35 065 00110101 — Digit Five
54 36 066 00110110 — Digit Six
55 37 067 00110111 — Digit Seven
56 38 070 00111000 — Digit Eight
57 39 071 00111001 — Digit Nine

Uppercase Letters

Dec Hex Oct Bin Char HTML Entity Name
65 41 101 01000001 — Latin Capital Letter A
66 42 102 01000010 — Latin Capital Letter B
67 43 103 01000011 — Latin Capital Letter C
68 44 104 01000100 — Latin Capital Letter D
69 45 105 01000101 — Latin Capital Letter E
70 46 106 01000110 — Latin Capital Letter F
71 47 107 01000111 — Latin Capital Letter G
72 48 110 01001000 — Latin Capital Letter H
73 49 111 01001001 — Latin Capital Letter I
74 4A 112 01001010 — Latin Capital Letter J
75 4B 113 01001011 — Latin Capital Letter K
76 4C 114 01001100 — Latin Capital Letter L
77 4D 115 01001101 — Latin Capital Letter M
78 4E 116 01001110 — Latin Capital Letter N
79 4F 117 01001111 — Latin Capital Letter O
80 50 120 01010000 — Latin Capital Letter P
81 51 121 01010001 — Latin Capital Letter Q
82 52 122 01010010 — Latin Capital Letter R
83 53 123 01010011 — Latin Capital Letter S
84 54 124 01010100 — Latin Capital Letter T
85 55 125 01010101 — Latin Capital Letter U
86 56 126 01010110 — Latin Capital Letter V
87 57 127 01010111 — Latin Capital Letter W
88 58 130 01011000 — Latin Capital Letter X
89 59 131 01011001 — Latin Capital Letter Y
90 5A 132 01011010 — Latin Capital Letter Z

Lowercase Letters

Dec Hex Oct Bin Char HTML Entity Name
97 61 141 01100001 — Latin Small Letter A
98 62 142 01100010 — Latin Small Letter B
99 63 143 01100011 — Latin Small Letter C
100 64 144 01100100 — Latin Small Letter D
101 65 145 01100101 — Latin Small Letter E
102 66 146 01100110 — Latin Small Letter F
103 67 147 01100111 — Latin Small Letter G
104 68 150 01101000 — Latin Small Letter H
105 69 151 01101001 — Latin Small Letter I
106 6A 152 01101010 — Latin Small Letter J
107 6B 153 01101011 — Latin Small Letter K
108 6C 154 01101100 — Latin Small Letter L
109 6D 155 01101101 — Latin Small Letter M
110 6E 156 01101110 — Latin Small Letter N
111 6F 157 01101111 — Latin Small Letter O
112 70 160 01110000 — Latin Small Letter P
113 71 161 01110001 — Latin Small Letter Q
114 72 162 01110010 — Latin Small Letter R
115 73 163 01110011 — Latin Small Letter S
116 74 164 01110100 — Latin Small Letter T
117 75 165 01110101 — Latin Small Letter U
118 76 166 01110110 — Latin Small Letter V
119 77 167 01110111 — Latin Small Letter W
120 78 170 01111000 — Latin Small Letter X
121 79 171 01111001 — Latin Small Letter Y
122 7A 172 01111010 — Latin Small Letter Z

C1 Controls (128–159)

Dec Hex Oct Bin Char HTML Entity Name
128 80 200 10000000 — Euro Sign
129 81 201 10000001 N/A — Unassigned
130 82 202 10000010 — Single Low-9 Quotation Mark
131 83 203 10000011 — Latin Small Letter F with Hook
132 84 204 10000100 — Double Low-9 Quotation Mark
133 85 205 10000101 — Horizontal Ellipsis
134 86 206 10000110 — Dagger
135 87 207 10000111 — Double Dagger
136 88 210 10001000 — Modifier Letter Circumflex Accent
137 89 211 10001001 — Per Mille Sign
138 8A 212 10001010 — Latin Capital Letter S with Caron
139 8B 213 10001011 — Single Left-Pointing Angle Quotation Mark
140 8C 214 10001100 — Latin Capital Ligature OE
141 8D 215 10001101 N/A — Unassigned
142 8E 216 10001110 — Latin Capital Letter Z with Caron
143 8F 217 10001111 N/A — Unassigned
144 90 220 10010000 N/A — Unassigned
145 91 221 10010001 — Left Single Quotation Mark
146 92 222 10010010 — Right Single Quotation Mark
147 93 223 10010011 — Left Double Quotation Mark
148 94 224 10010100 — Right Double Quotation Mark
149 95 225 10010101 — Bullet
150 96 226 10010110 — En Dash
151 97 227 10010111 — Em Dash
152 98 230 10011000 — Small Tilde
153 99 231 10011001 ™ Trade Mark Sign
154 9A 232 10011010 — Latin Small Letter S with Caron
155 9B 233 10011011 — Single Right-Pointing Angle Quotation Mark
156 9C 234 10011100 — Latin Small Ligature OE
157 9D 235 10011101 N/A — Unassigned
158 9E 236 10011110 — Latin Small Letter Z with Caron
159 9F 237 10011111 — Latin Capital Letter Y with Diaeresis

Latin-1 Supplement (160–255)

Dec Hex Oct Bin Char HTML Entity Name
160 A0 240 10100000   No-Break Space
161 A1 241 10100001 ¡ Inverted Exclamation Mark
162 A2 242 10100010 ¢ Cent Sign
163 A3 243 10100011 £ Pound Sign
164 A4 244 10100100 ¤ Currency Sign
165 A5 245 10100101 ¥ Yen Sign
166 A6 246 10100110 ¦ Broken Bar
167 A7 247 10100111 § Section Sign
168 A8 250 10101000 ¨ Diaeresis
169 A9 251 10101001 © Copyright Sign
170 AA 252 10101010 ª Feminine Ordinal Indicator
171 AB 253 10101011 « Left-Pointing Double Angle Quotation Mark
172 AC 254 10101100 ¬ Not Sign
173 AD 255 10101101 ­ Soft Hyphen
174 AE 256 10101110 ® Registered Sign
175 AF 257 10101111 ¯ Macron
176 B0 260 10110000 ° Degree Sign
177 B1 261 10110001 ± Plus-Minus Sign
178 B2 262 10110010 ² Superscript Two
179 B3 263 10110011 ³ Superscript Three
180 B4 264 10110100 ´ Acute Accent
181 B5 265 10110101 µ Micro Sign
182 B6 266 10110110 ¶ Pilcrow Sign
183 B7 267 10110111 · Middle Dot
184 B8 270 10111000 ¸ Cedilla
185 B9 271 10111001 ¹ Superscript One
186 BA 272 10111010 º Masculine Ordinal Indicator
187 BB 273 10111011 » Right-Pointing Double Angle Quotation Mark
188 BC 274 10111100 ¼ Vulgar Fraction One Quarter
189 BD 275 10111101 ½ Vulgar Fraction One Half
190 BE 276 10111110 ¾ Vulgar Fraction Three Quarters
191 BF 277 10111111 ¿ Inverted Question Mark
192 C0 300 11000000 À Latin Capital Letter A with Grave
193 C1 301 11000001 Á Latin Capital Letter A with Acute
194 C2 302 11000010 Â Latin Capital Letter A with Circumflex
195 C3 303 11000011 Ã Latin Capital Letter A with Tilde
196 C4 304 11000100 Ä Latin Capital Letter A with Diaeresis
197 C5 305 11000101 Å Latin Capital Letter A with Ring Above
198 C6 306 11000110 Æ Latin Capital Letter AE
199 C7 307 11000111 Ç Latin Capital Letter C with Cedilla
200 C8 310 11001000 È Latin Capital Letter E with Grave
201 C9 311 11001001 É Latin Capital Letter E with Acute
202 CA 312 11001010 Ê Latin Capital Letter E with Circumflex
203 CB 313 11001011 Ë Latin Capital Letter E with Diaeresis
204 CC 314 11001100 Ì Latin Capital Letter I with Grave
205 CD 315 11001101 Í Latin Capital Letter I with Acute
206 CE 316 11001110 Î Latin Capital Letter I with Circumflex
207 CF 317 11001111 Ï Latin Capital Letter I with Diaeresis
208 D0 320 11010000 Ð Latin Capital Letter Eth
209 D1 321 11010001 Ñ Latin Capital Letter N with Tilde
210 D2 322 11010010 Ò Latin Capital Letter O with Grave
211 D3 323 11010011 Ó Latin Capital Letter O with Acute
212 D4 324 11010100 Ô Latin Capital Letter O with Circumflex
213 D5 325 11010101 Õ Latin Capital Letter O with Tilde
214 D6 326 11010110 Ö Latin Capital Letter O with Diaeresis
215 D7 327 11010111 × Multiplication Sign
216 D8 330 11011000 Ø Latin Capital Letter O with Stroke
217 D9 331 11011001 Ù Latin Capital Letter U with Grave
218 DA 332 11011010 Ú Latin Capital Letter U with Acute
219 DB 333 11011011 Û Latin Capital Letter U with Circumflex
220 DC 334 11011100 Ü Latin Capital Letter U with Diaeresis
221 DD 335 11011101 Ý Latin Capital Letter Y with Acute
222 DE 336 11011110 Þ Latin Capital Letter Thorn
223 DF 337 11011111 ß Latin Small Letter Sharp S
224 E0 340 11100000 à Latin Small Letter A with Grave
225 E1 341 11100001 á Latin Small Letter A with Acute
226 E2 342 11100010 â Latin Small Letter A with Circumflex
227 E3 343 11100011 ã Latin Small Letter A with Tilde
228 E4 344 11100100 ä Latin Small Letter A with Diaeresis
229 E5 345 11100101 å Latin Small Letter A with Ring Above
230 E6 346 11100110 æ Latin Small Letter AE
231 E7 347 11100111 ç Latin Small Letter C with Cedilla
232 E8 350 11101000 è Latin Small Letter E with Grave
233 E9 351 11101001 é Latin Small Letter E with Acute
234 EA 352 11101010 ê Latin Small Letter E with Circumflex
235 EB 353 11101011 ë Latin Small Letter E with Diaeresis
236 EC 354 11101100 ì Latin Small Letter I with Grave
237 ED 355 11101101 í Latin Small Letter I with Acute
238 EE 356 11101110 î Latin Small Letter I with Circumflex
239 EF 357 11101111 ï Latin Small Letter I with Diaeresis
240 F0 360 11110000 ð Latin Small Letter Eth
241 F1 361 11110001 ñ Latin Small Letter N with Tilde
242 F2 362 11110010 ò Latin Small Letter O with Grave
243 F3 363 11110011 ó Latin Small Letter O with Acute
244 F4 364 11110100 ô Latin Small Letter O with Circumflex
245 F5 365 11110101 õ Latin Small Letter O with Tilde
246 F6 366 11110110 ö Latin Small Letter O with Diaeresis
247 F7 367 11110111 ÷ Division Sign
248 F8 370 11111000 ø Latin Small Letter O with Stroke
249 F9 371 11111001 ù Latin Small Letter U with Grave
250 FA 372 11111010 ú Latin Small Letter U with Acute
251 FB 373 11111011 û Latin Small Letter U with Circumflex
252 FC 374 11111100 ü Latin Small Letter U with Diaeresis
253 FD 375 11111101 ý Latin Small Letter Y with Acute
254 FE 376 11111110 þ Latin Small Letter Thorn
255 FF 377 11111111 ÿ Latin Small Letter Y with Diaeresis
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Frequently Asked Questions

What is the ASCII code for a space?

Space is decimal 32 (hex 20). It is the lowest-numbered printable character and falls in the punctuation/symbols category. In many contexts a "non-breaking space" ( , decimal 160) is used instead to prevent line breaks between words.

What does CR LF mean?

CR (Carriage Return, decimal 13) and LF (Line Feed, decimal 10) are control characters inherited from typewriter terminology. On Windows, line endings are CR LF (bytes 0D 0A); on Unix/macOS they are just LF (byte 0A); on classic Mac OS (pre-OS X) they were just CR. Mixing these in text files is a common source of diff noise and parser bugs.

What is the difference between ASCII and Unicode?

ASCII is a fixed 7-bit encoding for 128 characters, designed for English text. Unicode is a universal character repertoire covering over 1.1 million code points for every human writing system. UTF-8 is the most common Unicode encoding: it stores ASCII characters in a single byte (identical to ASCII), and uses multi-byte sequences for everything else — making it backwards-compatible and space-efficient for English text.

Why does my text show weird characters like é?

This is a character encoding mismatch. The sequence é is what you get when the two UTF-8 bytes for é (C3 A9) are misread as Latin-1/Windows-1252, producing à (C3) and © (A9). Fix it by declaring the correct charset (<meta charset="UTF-8"> in HTML, or charset=utf-8 in HTTP headers) and ensuring your database, application, and transport layer all agree on UTF-8.

What are control characters?

Control characters (decimal 0–31 and 127) are non-printable codes that originally commanded physical devices — ring a bell (7), move the cursor (8, 9, 10, 13), or signal transmission boundaries (2, 3, 4). Most are obsolete in modern applications, but LF (10), CR (13), HT (9), ESC (27), and NUL (0) remain heavily used in file formats, terminals, and protocols.

How do I use HTML entities?

HTML entities let you include reserved or non-keyboard characters in HTML without breaking the markup. For example, &amp; renders as &, &lt; as <, and &copy; as ©. You can also use numeric references: &#65; and &#x41; both render as A. Only characters that have special meaning in HTML (<, >, &, ") strictly need escaping; entities for accented letters are optional in UTF-8 documents.