La tabla ASCII es la base de la codificación de texto. Define 128 códigos (0–127) para caracteres imprimibles y códigos de control. Aquí tienes la tabla completa con valores decimales y hexadecimales.
¿Qué es ASCII?
ASCII (American Standard Code for Information Interchange) mapea números a caracteres. Incluye letras, dígitos, puntuación y controles.
Tabla ASCII completa (0–127)
La tabla destaca controles (0–31 y 127) y caracteres imprimibles (32–126). Usa la columna “Bin” para comparar bits.
Ejemplos: 65, 0x41, A, LF, TAB, Euro
ASCII 0–127 (estándar)
| Dec | Hex | Bin | Carácter | Descripción |
|---|---|---|---|---|
| 0 | 00 | 0000000 | — | NUL |
| 1 | 01 | 0000001 | — | SOH |
| 2 | 02 | 0000010 | — | STX |
| 3 | 03 | 0000011 | — | ETX |
| 4 | 04 | 0000100 | — | EOT |
| 5 | 05 | 0000101 | — | ENQ |
| 6 | 06 | 0000110 | — | ACK |
| 7 | 07 | 0000111 | — | BEL |
| 8 | 08 | 0001000 | — | BS |
| 9 | 09 | 0001001 | — | TAB |
| 10 | 0A | 0001010 | — | LF |
| 11 | 0B | 0001011 | — | VT |
| 12 | 0C | 0001100 | — | FF |
| 13 | 0D | 0001101 | — | CR |
| 14 | 0E | 0001110 | — | SO |
| 15 | 0F | 0001111 | — | SI |
| 16 | 10 | 0010000 | — | DLE |
| 17 | 11 | 0010001 | — | DC1 |
| 18 | 12 | 0010010 | — | DC2 |
| 19 | 13 | 0010011 | — | DC3 |
| 20 | 14 | 0010100 | — | DC4 |
| 21 | 15 | 0010101 | — | NAK |
| 22 | 16 | 0010110 | — | SYN |
| 23 | 17 | 0010111 | — | ETB |
| 24 | 18 | 0011000 | — | CAN |
| 25 | 19 | 0011001 | — | EM |
| 26 | 1A | 0011010 | — | SUB |
| 27 | 1B | 0011011 | — | ESC |
| 28 | 1C | 0011100 | — | FS |
| 29 | 1D | 0011101 | — | GS |
| 30 | 1E | 0011110 | — | RS |
| 31 | 1F | 0011111 | — | US |
| 32 | 20 | 0100000 | space | SPACE |
| 33 | 21 | 0100001 | ! | Printable |
| 34 | 22 | 0100010 | " | Printable |
| 35 | 23 | 0100011 | # | Printable |
| 36 | 24 | 0100100 | $ | Printable |
| 37 | 25 | 0100101 | % | Printable |
| 38 | 26 | 0100110 | & | Printable |
| 39 | 27 | 0100111 | ' | Printable |
| 40 | 28 | 0101000 | ( | Printable |
| 41 | 29 | 0101001 | ) | Printable |
| 42 | 2A | 0101010 | * | Printable |
| 43 | 2B | 0101011 | + | Printable |
| 44 | 2C | 0101100 | , | Printable |
| 45 | 2D | 0101101 | - | Printable |
| 46 | 2E | 0101110 | . | Printable |
| 47 | 2F | 0101111 | / | Printable |
| 48 | 30 | 0110000 | 0 | Printable |
| 49 | 31 | 0110001 | 1 | Printable |
| 50 | 32 | 0110010 | 2 | Printable |
| 51 | 33 | 0110011 | 3 | Printable |
| 52 | 34 | 0110100 | 4 | Printable |
| 53 | 35 | 0110101 | 5 | Printable |
| 54 | 36 | 0110110 | 6 | Printable |
| 55 | 37 | 0110111 | 7 | Printable |
| 56 | 38 | 0111000 | 8 | Printable |
| 57 | 39 | 0111001 | 9 | Printable |
| 58 | 3A | 0111010 | : | Printable |
| 59 | 3B | 0111011 | ; | Printable |
| 60 | 3C | 0111100 | < | Printable |
| 61 | 3D | 0111101 | = | Printable |
| 62 | 3E | 0111110 | > | Printable |
| 63 | 3F | 0111111 | ? | Printable |
| 64 | 40 | 1000000 | @ | Printable |
| 65 | 41 | 1000001 | A | Printable |
| 66 | 42 | 1000010 | B | Printable |
| 67 | 43 | 1000011 | C | Printable |
| 68 | 44 | 1000100 | D | Printable |
| 69 | 45 | 1000101 | E | Printable |
| 70 | 46 | 1000110 | F | Printable |
| 71 | 47 | 1000111 | G | Printable |
| 72 | 48 | 1001000 | H | Printable |
| 73 | 49 | 1001001 | I | Printable |
| 74 | 4A | 1001010 | J | Printable |
| 75 | 4B | 1001011 | K | Printable |
| 76 | 4C | 1001100 | L | Printable |
| 77 | 4D | 1001101 | M | Printable |
| 78 | 4E | 1001110 | N | Printable |
| 79 | 4F | 1001111 | O | Printable |
| 80 | 50 | 1010000 | P | Printable |
| 81 | 51 | 1010001 | Q | Printable |
| 82 | 52 | 1010010 | R | Printable |
| 83 | 53 | 1010011 | S | Printable |
| 84 | 54 | 1010100 | T | Printable |
| 85 | 55 | 1010101 | U | Printable |
| 86 | 56 | 1010110 | V | Printable |
| 87 | 57 | 1010111 | W | Printable |
| 88 | 58 | 1011000 | X | Printable |
| 89 | 59 | 1011001 | Y | Printable |
| 90 | 5A | 1011010 | Z | Printable |
| 91 | 5B | 1011011 | [ | Printable |
| 92 | 5C | 1011100 | \ | Printable |
| 93 | 5D | 1011101 | ] | Printable |
| 94 | 5E | 1011110 | ^ | Printable |
| 95 | 5F | 1011111 | _ | Printable |
| 96 | 60 | 1100000 | ` | Printable |
| 97 | 61 | 1100001 | a | Printable |
| 98 | 62 | 1100010 | b | Printable |
| 99 | 63 | 1100011 | c | Printable |
| 100 | 64 | 1100100 | d | Printable |
| 101 | 65 | 1100101 | e | Printable |
| 102 | 66 | 1100110 | f | Printable |
| 103 | 67 | 1100111 | g | Printable |
| 104 | 68 | 1101000 | h | Printable |
| 105 | 69 | 1101001 | i | Printable |
| 106 | 6A | 1101010 | j | Printable |
| 107 | 6B | 1101011 | k | Printable |
| 108 | 6C | 1101100 | l | Printable |
| 109 | 6D | 1101101 | m | Printable |
| 110 | 6E | 1101110 | n | Printable |
| 111 | 6F | 1101111 | o | Printable |
| 112 | 70 | 1110000 | p | Printable |
| 113 | 71 | 1110001 | q | Printable |
| 114 | 72 | 1110010 | r | Printable |
| 115 | 73 | 1110011 | s | Printable |
| 116 | 74 | 1110100 | t | Printable |
| 117 | 75 | 1110101 | u | Printable |
| 118 | 76 | 1110110 | v | Printable |
| 119 | 77 | 1110111 | w | Printable |
| 120 | 78 | 1111000 | x | Printable |
| 121 | 79 | 1111001 | y | Printable |
| 122 | 7A | 1111010 | z | Printable |
| 123 | 7B | 1111011 | { | Printable |
| 124 | 7C | 1111100 | | | Printable |
| 125 | 7D | 1111101 | } | Printable |
| 126 | 7E | 1111110 | ~ | Printable |
| 127 | 7F | 1111111 | — | DEL |
ASCII extendido (Windows-1252)
La tabla extendida sigue Windows-1252 (común en Windows). Los códigos 128–255 pueden variar en otros sistemas.
| Dec | Hex | Bin | Carácter | Descripción |
|---|---|---|---|---|
| 128 | 80 | 10000000 | € | Euro sign |
| 129 | 81 | 10000001 | — | Undefined |
| 130 | 82 | 10000010 | ‚ | Single low-9 quote |
| 131 | 83 | 10000011 | ƒ | Latin small f with hook |
| 132 | 84 | 10000100 | „ | Double low-9 quote |
| 133 | 85 | 10000101 | … | Ellipsis |
| 134 | 86 | 10000110 | † | Dagger |
| 135 | 87 | 10000111 | ‡ | Double dagger |
| 136 | 88 | 10001000 | ˆ | Modifier circumflex |
| 137 | 89 | 10001001 | ‰ | Per mille |
| 138 | 8A | 10001010 | Š | Latin capital S with caron |
| 139 | 8B | 10001011 | ‹ | Single left angle quote |
| 140 | 8C | 10001100 | Π| Latin capital OE |
| 141 | 8D | 10001101 | — | Undefined |
| 142 | 8E | 10001110 | Ž | Latin capital Z with caron |
| 143 | 8F | 10001111 | — | Undefined |
| 144 | 90 | 10010000 | — | Undefined |
| 145 | 91 | 10010001 | ‘ | Left single quote |
| 146 | 92 | 10010010 | ’ | Right single quote |
| 147 | 93 | 10010011 | “ | Left double quote |
| 148 | 94 | 10010100 | ” | Right double quote |
| 149 | 95 | 10010101 | • | Bullet |
| 150 | 96 | 10010110 | – | En dash |
| 151 | 97 | 10010111 | — | Em dash |
| 152 | 98 | 10011000 | ˜ | Small tilde |
| 153 | 99 | 10011001 | ™ | Trademark |
| 154 | 9A | 10011010 | š | Latin small s with caron |
| 155 | 9B | 10011011 | › | Single right angle quote |
| 156 | 9C | 10011100 | œ | Latin small oe |
| 157 | 9D | 10011101 | — | Undefined |
| 158 | 9E | 10011110 | ž | Latin small z with caron |
| 159 | 9F | 10011111 | Ÿ | Latin capital Y with diaeresis |
| 160 | A0 | 10100000 | NBSP | No-break space |
| 161 | A1 | 10100001 | ¡ | Inverted exclamation |
| 162 | A2 | 10100010 | ¢ | Cent |
| 163 | A3 | 10100011 | £ | Pound |
| 164 | A4 | 10100100 | ¤ | Currency |
| 165 | A5 | 10100101 | ¥ | Yen |
| 166 | A6 | 10100110 | ¦ | Broken bar |
| 167 | A7 | 10100111 | § | Section |
| 168 | A8 | 10101000 | ¨ | Diaeresis |
| 169 | A9 | 10101001 | © | Copyright |
| 170 | AA | 10101010 | ª | Feminine ordinal |
| 171 | AB | 10101011 | « | Left angle quote |
| 172 | AC | 10101100 | ¬ | Not sign |
| 173 | AD | 10101101 | SHY | Soft hyphen |
| 174 | AE | 10101110 | ® | Registered |
| 175 | AF | 10101111 | ¯ | Macron |
| 176 | B0 | 10110000 | ° | Degree |
| 177 | B1 | 10110001 | ± | Plus-minus |
| 178 | B2 | 10110010 | ² | Superscript 2 |
| 179 | B3 | 10110011 | ³ | Superscript 3 |
| 180 | B4 | 10110100 | ´ | Acute accent |
| 181 | B5 | 10110101 | µ | Micro |
| 182 | B6 | 10110110 | ¶ | Pilcrow |
| 183 | B7 | 10110111 | · | Middle dot |
| 184 | B8 | 10111000 | ¸ | Cedilla |
| 185 | B9 | 10111001 | ¹ | Superscript 1 |
| 186 | BA | 10111010 | º | Masculine ordinal |
| 187 | BB | 10111011 | » | Right angle quote |
| 188 | BC | 10111100 | ¼ | One quarter |
| 189 | BD | 10111101 | ½ | One half |
| 190 | BE | 10111110 | ¾ | Three quarters |
| 191 | BF | 10111111 | ¿ | Inverted question |
| 192 | C0 | 11000000 | À | A grave |
| 193 | C1 | 11000001 | Á | A acute |
| 194 | C2 | 11000010 | Â | A circumflex |
| 195 | C3 | 11000011 | Ã | A tilde |
| 196 | C4 | 11000100 | Ä | A diaeresis |
| 197 | C5 | 11000101 | Å | A ring |
| 198 | C6 | 11000110 | Æ | AE |
| 199 | C7 | 11000111 | Ç | C cedilla |
| 200 | C8 | 11001000 | È | E grave |
| 201 | C9 | 11001001 | É | E acute |
| 202 | CA | 11001010 | Ê | E circumflex |
| 203 | CB | 11001011 | Ë | E diaeresis |
| 204 | CC | 11001100 | Ì | I grave |
| 205 | CD | 11001101 | Í | I acute |
| 206 | CE | 11001110 | Î | I circumflex |
| 207 | CF | 11001111 | Ï | I diaeresis |
| 208 | D0 | 11010000 | Ð | Eth |
| 209 | D1 | 11010001 | Ñ | N tilde |
| 210 | D2 | 11010010 | Ò | O grave |
| 211 | D3 | 11010011 | Ó | O acute |
| 212 | D4 | 11010100 | Ô | O circumflex |
| 213 | D5 | 11010101 | Õ | O tilde |
| 214 | D6 | 11010110 | Ö | O diaeresis |
| 215 | D7 | 11010111 | × | Multiplication |
| 216 | D8 | 11011000 | Ø | O stroke |
| 217 | D9 | 11011001 | Ù | U grave |
| 218 | DA | 11011010 | Ú | U acute |
| 219 | DB | 11011011 | Û | U circumflex |
| 220 | DC | 11011100 | Ü | U diaeresis |
| 221 | DD | 11011101 | Ý | Y acute |
| 222 | DE | 11011110 | Þ | Thorn |
| 223 | DF | 11011111 | ß | Sharp s |
| 224 | E0 | 11100000 | à | a grave |
| 225 | E1 | 11100001 | á | a acute |
| 226 | E2 | 11100010 | â | a circumflex |
| 227 | E3 | 11100011 | ã | a tilde |
| 228 | E4 | 11100100 | ä | a diaeresis |
| 229 | E5 | 11100101 | å | a ring |
| 230 | E6 | 11100110 | æ | ae |
| 231 | E7 | 11100111 | ç | c cedilla |
| 232 | E8 | 11101000 | è | e grave |
| 233 | E9 | 11101001 | é | e acute |
| 234 | EA | 11101010 | ê | e circumflex |
| 235 | EB | 11101011 | ë | e diaeresis |
| 236 | EC | 11101100 | ì | i grave |
| 237 | ED | 11101101 | í | i acute |
| 238 | EE | 11101110 | î | i circumflex |
| 239 | EF | 11101111 | ï | i diaeresis |
| 240 | F0 | 11110000 | ð | eth |
| 241 | F1 | 11110001 | ñ | n tilde |
| 242 | F2 | 11110010 | ò | o grave |
| 243 | F3 | 11110011 | ó | o acute |
| 244 | F4 | 11110100 | ô | o circumflex |
| 245 | F5 | 11110101 | õ | o tilde |
| 246 | F6 | 11110110 | ö | o diaeresis |
| 247 | F7 | 11110111 | ÷ | Division |
| 248 | F8 | 11111000 | ø | o stroke |
| 249 | F9 | 11111001 | ù | u grave |
| 250 | FA | 11111010 | ú | u acute |
| 251 | FB | 11111011 | û | u circumflex |
| 252 | FC | 11111100 | ü | u diaeresis |
| 253 | FD | 11111101 | ý | y acute |
| 254 | FE | 11111110 | þ | thorn |
| 255 | FF | 11111111 | ÿ | y diaeresis |
ASCII extendido (128–255)
El “ASCII extendido” no es un estándar único. Depende de la codificación(por ejemplo, Windows-1252 o ISO-8859-1). Por eso la tabla 128–255 varía según el sistema y el idioma. Para usos modernos, se recomienda Unicode/UTF-8.
Cómo usar la tabla ASCII
- Convertir caracteres a códigos en scripts.
- Interpretar bytes en logs y protocolos legados.
- Validar entradas por rangos ASCII.
FAQ rápido
¿ASCII es lo mismo que Unicode?
No. ASCII solo cubre 128 símbolos. Unicode es mucho más amplio.
¿Por qué algunos caracteres no se muestran?
Los códigos 0–31 son controles (salto de línea, tabulación, etc.).
Conclusión
ASCII sigue siendo útil para entender sistemas legados y protocolos simples. Para software moderno, combina ASCII con conocimiento de Unicode/UTF-8.