Different bases are especially used in connection with computers.
The commonly used bases are 10 (decimal), 2 (binary), 8 (octal), and 16 (hexadecimal).
A byte with 8 bits can represent values from 0 to 255, often expressed in base 2, 8 or 16 with leading zeros to give the same length.
The first row in the tables is the base written in decimal.
0–15
| 10 | 2 | 8 | 16 |
| 0 |
00000000 | 000 | 00 |
| 1 |
00000001 | 001 | 01 |
| 2 |
00000010 | 002 | 02 |
| 3 |
00000011 | 003 | 03 |
| 4 |
00000100 | 004 | 04 |
| 5 |
00000101 | 005 | 05 |
| 6 |
00000110 | 006 | 06 |
| 7 |
00000111 | 007 | 07 |
| 8 |
00001000 | 010 | 08 |
| 9 |
00001001 | 011 | 09 |
| 10 |
00001010 | 012 | 0a |
| 11 |
00001011 | 013 | 0b |
| 12 |
00001100 | 014 | 0c |
| 13 |
00001101 | 015 | 0d |
| 14 |
00001110 | 016 | 0e |
| 15 |
00001111 | 017 | 0f |
16–31
| 10 | 2 | 8 | 16 |
| 16 |
00010000 | 020 | 10 |
| 17 |
00010001 | 021 | 11 |
| 18 |
00010010 | 022 | 12 |
| 19 |
00010011 | 023 | 13 |
| 20 |
00010100 | 024 | 14 |
| 21 |
00010101 | 025 | 15 |
| 22 |
00010110 | 026 | 16 |
| 23 |
00010111 | 027 | 17 |
| 24 |
00011000 | 030 | 18 |
| 25 |
00011001 | 031 | 19 |
| 26 |
00011010 | 032 | 1a |
| 27 |
00011011 | 033 | 1b |
| 28 |
00011100 | 034 | 1c |
| 29 |
00011101 | 035 | 1d |
| 30 |
00011110 | 036 | 1e |
| 31 |
00011111 | 037 | 1f |
32–47
| 10 | 2 | 8 | 16 |
| 32 |
00100000 | 040 | 20 |
| 33 |
00100001 | 041 | 21 |
| 34 |
00100010 | 042 | 22 |
| 35 |
00100011 | 043 | 23 |
| 36 |
00100100 | 044 | 24 |
| 37 |
00100101 | 045 | 25 |
| 38 |
00100110 | 046 | 26 |
| 39 |
00100111 | 047 | 27 |
| 40 |
00101000 | 050 | 28 |
| 41 |
00101001 | 051 | 29 |
| 42 |
00101010 | 052 | 2a |
| 43 |
00101011 | 053 | 2b |
| 44 |
00101100 | 054 | 2c |
| 45 |
00101101 | 055 | 2d |
| 46 |
00101110 | 056 | 2e |
| 47 |
00101111 | 057 | 2f |
48–63
| 10 | 2 | 8 | 16 |
| 48 |
00110000 | 060 | 30 |
| 49 |
00110001 | 061 | 31 |
| 50 |
00110010 | 062 | 32 |
| 51 |
00110011 | 063 | 33 |
| 52 |
00110100 | 064 | 34 |
| 53 |
00110101 | 065 | 35 |
| 54 |
00110110 | 066 | 36 |
| 55 |
00110111 | 067 | 37 |
| 56 |
00111000 | 070 | 38 |
| 57 |
00111001 | 071 | 39 |
| 58 |
00111010 | 072 | 3a |
| 59 |
00111011 | 073 | 3b |
| 60 |
00111100 | 074 | 3c |
| 61 |
00111101 | 075 | 3d |
| 62 |
00111110 | 076 | 3e |
| 63 |
00111111 | 077 | 3f |
64–79
| 10 | 2 | 8 | 16 |
| 64 |
01000000 | 100 | 40 |
| 65 |
01000001 | 101 | 41 |
| 66 |
01000010 | 102 | 42 |
| 67 |
01000011 | 103 | 43 |
| 68 |
01000100 | 104 | 44 |
| 69 |
01000101 | 105 | 45 |
| 70 |
01000110 | 106 | 46 |
| 71 |
01000111 | 107 | 47 |
| 72 |
01001000 | 110 | 48 |
| 73 |
01001001 | 111 | 49 |
| 74 |
01001010 | 112 | 4a |
| 75 |
01001011 | 113 | 4b |
| 76 |
01001100 | 114 | 4c |
| 77 |
01001101 | 115 | 4d |
| 78 |
01001110 | 116 | 4e |
| 79 |
01001111 | 117 | 4f |
80–95
| 10 | 2 | 8 | 16 |
| 80 |
01010000 | 120 | 50 |
| 81 |
01010001 | 121 | 51 |
| 82 |
01010010 | 122 | 52 |
| 83 |
01010011 | 123 | 53 |
| 84 |
01010100 | 124 | 54 |
| 85 |
01010101 | 125 | 55 |
| 86 |
01010110 | 126 | 56 |
| 87 |
01010111 | 127 | 57 |
| 88 |
01011000 | 130 | 58 |
| 89 |
01011001 | 131 | 59 |
| 90 |
01011010 | 132 | 5a |
| 91 |
01011011 | 133 | 5b |
| 92 |
01011100 | 134 | 5c |
| 93 |
01011101 | 135 | 5d |
| 94 |
01011110 | 136 | 5e |
| 95 |
01011111 | 137 | 5f |
96–111
| 10 | 2 | 8 | 16 |
| 96 |
01100000 | 140 | 60 |
| 97 |
01100001 | 141 | 61 |
| 98 |
01100010 | 142 | 62 |
| 99 |
01100011 | 143 | 63 |
| 100 |
01100100 | 144 | 64 |
| 101 |
01100101 | 145 | 65 |
| 102 |
01100110 | 146 | 66 |
| 103 |
01100111 | 147 | 67 |
| 104 |
01101000 | 150 | 68 |
| 105 |
01101001 | 151 | 69 |
| 106 |
01101010 | 152 | 6a |
| 107 |
01101011 | 153 | 6b |
| 108 |
01101100 | 154 | 6c |
| 109 |
01101101 | 155 | 6d |
| 110 |
01101110 | 156 | 6e |
| 111 |
01101111 | 157 | 6f |
112–127
| 10 | 2 | 8 | 16 |
| 112 |
01110000 | 160 | 70 |
| 113 |
01110001 | 161 | 71 |
| 114 |
01110010 | 162 | 72 |
| 115 |
01110011 | 163 | 73 |
| 116 |
01110100 | 164 | 74 |
| 117 |
01110101 | 165 | 75 |
| 118 |
01110110 | 166 | 76 |
| 119 |
01110111 | 167 | 77 |
| 120 |
01111000 | 170 | 78 |
| 121 |
01111001 | 171 | 79 |
| 122 |
01111010 | 172 | 7a |
| 123 |
01111011 | 173 | 7b |
| 124 |
01111100 | 174 | 7c |
| 125 |
01111101 | 175 | 7d |
| 126 |
01111110 | 176 | 7e |
| 127 |
01111111 | 177 | 7f |
128–143
| 10 | 2 | 8 | 16 |
| 128 |
10000000 | 200 | 80 |
| 129 |
10000001 | 201 | 81 |
| 130 |
10000010 | 202 | 82 |
| 131 |
10000011 | 203 | 83 |
| 132 |
10000100 | 204 | 84 |
| 133 |
10000101 | 205 | 85 |
| 134 |
10000110 | 206 | 86 |
| 135 |
10000111 | 207 | 87 |
| 136 |
10001000 | 210 | 88 |
| 137 |
10001001 | 211 | 89 |
| 138 |
10001010 | 212 | 8a |
| 139 |
10001011 | 213 | 8b |
| 140 |
10001100 | 214 | 8c |
| 141 |
10001101 | 215 | 8d |
| 142 |
10001110 | 216 | 8e |
| 143 |
10001111 | 217 | 8f |
144–159
| 10 | 2 | 8 | 16 |
| 144 |
10010000 | 220 | 90 |
| 145 |
10010001 | 221 | 91 |
| 146 |
10010010 | 222 | 92 |
| 147 |
10010011 | 223 | 93 |
| 148 |
10010100 | 224 | 94 |
| 149 |
10010101 | 225 | 95 |
| 150 |
10010110 | 226 | 96 |
| 151 |
10010111 | 227 | 97 |
| 152 |
10011000 | 230 | 98 |
| 153 |
10011001 | 231 | 99 |
| 154 |
10011010 | 232 | 9a |
| 155 |
10011011 | 233 | 9b |
| 156 |
10011100 | 234 | 9c |
| 157 |
10011101 | 235 | 9d |
| 158 |
10011110 | 236 | 9e |
| 159 |
10011111 | 237 | 9f |
160–175
| 10 | 2 | 8 | 16 |
| 160 |
10100000 | 240 | a0 |
| 161 |
10100001 | 241 | a1 |
| 162 |
10100010 | 242 | a2 |
| 163 |
10100011 | 243 | a3 |
| 164 |
10100100 | 244 | a4 |
| 165 |
10100101 | 245 | a5 |
| 166 |
10100110 | 246 | a6 |
| 167 |
10100111 | 247 | a7 |
| 168 |
10101000 | 250 | a8 |
| 169 |
10101001 | 251 | a9 |
| 170 |
10101010 | 252 | aa |
| 171 |
10101011 | 253 | ab |
| 172 |
10101100 | 254 | ac |
| 173 |
10101101 | 255 | ad |
| 174 |
10101110 | 256 | ae |
| 175 |
10101111 | 257 | af |
176–191
| 10 | 2 | 8 | 16 |
| 176 |
10110000 | 260 | b0 |
| 177 |
10110001 | 261 | b1 |
| 178 |
10110010 | 262 | b2 |
| 179 |
10110011 | 263 | b3 |
| 180 |
10110100 | 264 | b4 |
| 181 |
10110101 | 265 | b5 |
| 182 |
10110110 | 266 | b6 |
| 183 |
10110111 | 267 | b7 |
| 184 |
10111000 | 270 | b8 |
| 185 |
10111001 | 271 | b9 |
| 186 |
10111010 | 272 | ba |
| 187 |
10111011 | 273 | bb |
| 188 |
10111100 | 274 | bc |
| 189 |
10111101 | 275 | bd |
| 190 |
10111110 | 276 | be |
| 191 |
10111111 | 277 | bf |
192–207
| 10 | 2 | 8 | 16 |
| 192 |
11000000 | 300 | c0 |
| 193 |
11000001 | 301 | c1 |
| 194 |
11000010 | 302 | c2 |
| 195 |
11000011 | 303 | c3 |
| 196 |
11000100 | 304 | c4 |
| 197 |
11000101 | 305 | c5 |
| 198 |
11000110 | 306 | c6 |
| 199 |
11000111 | 307 | c7 |
| 200 |
11001000 | 310 | c8 |
| 201 |
11001001 | 311 | c9 |
| 202 |
11001010 | 312 | ca |
| 203 |
11001011 | 313 | cb |
| 204 |
11001100 | 314 | cc |
| 205 |
11001101 | 315 | cd |
| 206 |
11001110 | 316 | ce |
| 207 |
11001111 | 317 | cf |
208–223
| 10 | 2 | 8 | 16 |
| 208 |
11010000 | 320 | d0 |
| 209 |
11010001 | 321 | d1 |
| 210 |
11010010 | 322 | d2 |
| 211 |
11010011 | 323 | d3 |
| 212 |
11010100 | 324 | d4 |
| 213 |
11010101 | 325 | d5 |
| 214 |
11010110 | 326 | d6 |
| 215 |
11010111 | 327 | d7 |
| 216 |
11011000 | 330 | d8 |
| 217 |
11011001 | 331 | d9 |
| 218 |
11011010 | 332 | da |
| 219 |
11011011 | 333 | db |
| 220 |
11011100 | 334 | dc |
| 221 |
11011101 | 335 | dd |
| 222 |
11011110 | 336 | de |
| 223 |
11011111 | 337 | df |
224–239
| 10 | 2 | 8 | 16 |
| 224 |
11100000 | 340 | e0 |
| 225 |
11100001 | 341 | e1 |
| 226 |
11100010 | 342 | e2 |
| 227 |
11100011 | 343 | e3 |
| 228 |
11100100 | 344 | e4 |
| 229 |
11100101 | 345 | e5 |
| 230 |
11100110 | 346 | e6 |
| 231 |
11100111 | 347 | e7 |
| 232 |
11101000 | 350 | e8 |
| 233 |
11101001 | 351 | e9 |
| 234 |
11101010 | 352 | ea |
| 235 |
11101011 | 353 | eb |
| 236 |
11101100 | 354 | ec |
| 237 |
11101101 | 355 | ed |
| 238 |
11101110 | 356 | ee |
| 239 |
11101111 | 357 | ef |
240–255
| 10 | 2 | 8 | 16 |
| 240 |
11110000 | 360 | f0 |
| 241 |
11110001 | 361 | f1 |
| 242 |
11110010 | 362 | f2 |
| 243 |
11110011 | 363 | f3 |
| 244 |
11110100 | 364 | f4 |
| 245 |
11110101 | 365 | f5 |
| 246 |
11110110 | 366 | f6 |
| 247 |
11110111 | 367 | f7 |
| 248 |
11111000 | 370 | f8 |
| 249 |
11111001 | 371 | f9 |
| 250 |
11111010 | 372 | fa |
| 251 |
11111011 | 373 | fb |
| 252 |
11111100 | 374 | fc |
| 253 |
11111101 | 375 | fd |
| 254 |
11111110 | 376 | fe |
| 255 |
11111111 | 377 | ff |