Decimal to octal converter helps you to calculate a decimal value from a octal number. To use this converter tool, type any decimal number in the first area below. Hit the blue convert button and then you will see the octal result of the calculation. You can easily convert up to 19 decimal characters to octal in our converter.
Decimal to octal converter widget
The result of Decimal to Octal conversion in base numbers
Decimal number
A decimal number system is positional numeral system employing 10 as the base. It uses 10 different symbols 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.
It is the standard system for denoting integer and non-integer numbers. Decimal number refers to the notation of number in the decimal system (base-10), which contains a decimal separator. In this system the number 423.15 represents the sum ( 4 × 102 ) + ( 2 × 101 ) + ( 3 × 100 ) + ( 1 × 10−1 ) + ( 5 × 10−2 ). Humans mostly use the decimal system.
Octal number
The octal numeral system (oct), is the base-8 number system, which uses the digits 0 - 7. In the octal system each place is a power of eight. It is used for examle as a shorthand for representing file permissions on UNIX systems.
Decimal octal conversion table
In the table below there are decimal to octal conversions for values 0 - 255. You can navigate the table using Previous and Next buttons. You can also sort the table by click on the header.
| Decimal | Octal |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 10 |
| 9 | 11 |
| 10 | 12 |
| 11 | 13 |
| 12 | 14 |
| 13 | 15 |
| 14 | 16 |
| 15 | 17 |
| 16 | 20 |
| 17 | 21 |
| 18 | 22 |
| 19 | 23 |
| 20 | 24 |
| 21 | 25 |
| 22 | 26 |
| 23 | 27 |
| 24 | 30 |
| 25 | 31 |
| 26 | 32 |
| 27 | 33 |
| 28 | 34 |
| 29 | 35 |
| 30 | 36 |
| 31 | 37 |
| 32 | 40 |
| 33 | 41 |
| 34 | 42 |
| 35 | 43 |
| 36 | 44 |
| 37 | 45 |
| 38 | 46 |
| 39 | 47 |
| 40 | 50 |
| 41 | 51 |
| 42 | 52 |
| 43 | 53 |
| 44 | 54 |
| 45 | 55 |
| 46 | 56 |
| 47 | 57 |
| 48 | 60 |
| 49 | 61 |
| 50 | 62 |
| 51 | 63 |
| 52 | 64 |
| 53 | 65 |
| 54 | 66 |
| 55 | 67 |
| 56 | 70 |
| 57 | 71 |
| 58 | 72 |
| 59 | 73 |
| 60 | 74 |
| 61 | 75 |
| 62 | 76 |
| 63 | 77 |
| 64 | 100 |
| 65 | 101 |
| 66 | 102 |
| 67 | 103 |
| 68 | 104 |
| 69 | 105 |
| 70 | 106 |
| 71 | 107 |
| 72 | 110 |
| 73 | 111 |
| 74 | 112 |
| 75 | 113 |
| 76 | 114 |
| 77 | 115 |
| 78 | 116 |
| 79 | 117 |
| 80 | 120 |
| 81 | 121 |
| 82 | 122 |
| 83 | 123 |
| 84 | 124 |
| 85 | 125 |
| 86 | 126 |
| 87 | 127 |
| 88 | 130 |
| 89 | 131 |
| 90 | 132 |
| 91 | 133 |
| 92 | 134 |
| 93 | 135 |
| 94 | 136 |
| 95 | 137 |
| 96 | 140 |
| 97 | 141 |
| 98 | 142 |
| 99 | 143 |
| 100 | 144 |
| 101 | 145 |
| 102 | 146 |
| 103 | 147 |
| 104 | 150 |
| 105 | 151 |
| 106 | 152 |
| 107 | 153 |
| 108 | 154 |
| 109 | 155 |
| 110 | 156 |
| 111 | 157 |
| 112 | 160 |
| 113 | 161 |
| 114 | 162 |
| 115 | 163 |
| 116 | 164 |
| 117 | 165 |
| 118 | 166 |
| 119 | 167 |
| 120 | 170 |
| 121 | 171 |
| 122 | 172 |
| 123 | 173 |
| 124 | 174 |
| 125 | 175 |
| 126 | 176 |
| 127 | 177 |
| 128 | 200 |
| 129 | 201 |
| 130 | 202 |
| 131 | 203 |
| 132 | 204 |
| 133 | 205 |
| 134 | 206 |
| 135 | 207 |
| 136 | 210 |
| 137 | 211 |
| 138 | 212 |
| 139 | 213 |
| 140 | 214 |
| 141 | 215 |
| 142 | 216 |
| 143 | 217 |
| 144 | 220 |
| 145 | 221 |
| 146 | 222 |
| 147 | 223 |
| 148 | 224 |
| 149 | 225 |
| 150 | 226 |
| 151 | 227 |
| 152 | 230 |
| 153 | 231 |
| 154 | 232 |
| 155 | 233 |
| 156 | 234 |
| 157 | 235 |
| 158 | 236 |
| 159 | 237 |
| 160 | 240 |
| 161 | 241 |
| 162 | 242 |
| 163 | 243 |
| 164 | 244 |
| 165 | 245 |
| 166 | 246 |
| 167 | 247 |
| 168 | 250 |
| 169 | 251 |
| 170 | 252 |
| 171 | 253 |
| 172 | 254 |
| 173 | 255 |
| 174 | 256 |
| 175 | 257 |
| 176 | 260 |
| 177 | 261 |
| 178 | 262 |
| 179 | 263 |
| 180 | 264 |
| 181 | 265 |
| 182 | 266 |
| 183 | 267 |
| 184 | 270 |
| 185 | 271 |
| 186 | 272 |
| 187 | 273 |
| 188 | 274 |
| 189 | 275 |
| 190 | 276 |
| 191 | 277 |
| 192 | 300 |
| 193 | 301 |
| 194 | 302 |
| 195 | 303 |
| 196 | 304 |
| 197 | 305 |
| 198 | 306 |
| 199 | 307 |
| 200 | 310 |
| 201 | 311 |
| 202 | 312 |
| 203 | 313 |
| 204 | 314 |
| 205 | 315 |
| 206 | 316 |
| 207 | 317 |
| 208 | 320 |
| 209 | 321 |
| 210 | 322 |
| 211 | 323 |
| 212 | 324 |
| 213 | 325 |
| 214 | 326 |
| 215 | 327 |
| 216 | 330 |
| 217 | 331 |
| 218 | 332 |
| 219 | 333 |
| 220 | 334 |
| 221 | 335 |
| 222 | 336 |
| 223 | 337 |
| 224 | 340 |
| 225 | 341 |
| 226 | 342 |
| 227 | 343 |
| 228 | 344 |
| 229 | 345 |
| 230 | 346 |
| 231 | 347 |
| 232 | 350 |
| 233 | 351 |
| 234 | 352 |
| 235 | 353 |
| 236 | 354 |
| 237 | 355 |
| 238 | 356 |
| 239 | 357 |
| 240 | 360 |
| 241 | 361 |
| 242 | 362 |
| 243 | 363 |
| 244 | 364 |
| 245 | 365 |
| 246 | 366 |
| 247 | 367 |
| 248 | 370 |
| 249 | 371 |
| 250 | 372 |
| 251 | 373 |
| 252 | 374 |
| 253 | 375 |
| 254 | 376 |
| 255 | 377 |
Examples of decimal to octal conversions
In the list below there are examples of dec to oct conversions.
- Decimal 8 is 10 in octal.
- Decimal 31 is 37 in octal.
- Decimal 256 in 400 octal.
