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Base Number Conversion

by Jeff Hunter, Sr. Database Administrator

Contents

Converting Hex to Decimal

A chart that shows the conversion between hex and decimal.

    0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F
0  000 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015
1  016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031
2  032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047
3  048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063
4  064 065 066 067 068 069 070 071 072 073 074 075 076 077 078 079
5  080 081 082 083 084 085 086 087 088 089 090 091 092 093 094 095
6  096 097 098 099 100 101 102 103 104 105 106 107 108 109 110 111
7  112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
8  128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143
9  144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159
A  160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175
B  176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
C  192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207
D  208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223
E  224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239
F  240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255

If you're having trouble getting the hang of the above chart, here's a hint.

Hex 41 (written as 0x41 in the programing language C) is equivalent to decimal 65.

Converting Hex to Octal

A chart that shows the conversion between hex and octal.

    0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F
0  000 001 002 003 004 005 006 007 010 011 012 013 014 015 016 017
1  020 021 022 023 024 025 026 027 030 031 032 033 034 035 036 037
2  040 041 042 043 044 045 046 047 050 051 052 053 054 055 056 057
3  060 061 062 063 064 065 066 067 070 071 072 073 074 075 076 077
4  100 101 102 103 104 105 106 107 110 111 112 113 114 115 116 117
5  120 121 122 123 134 125 126 127 130 131 132 133 134 135 136 137
6  140 141 142 143 144 145 146 147 150 151 152 153 154 155 156 157
7  160 161 162 163 164 165 166 167 170 171 172 173 174 175 176 177
8  200 201 202 203 204 205 206 207 210 211 212 213 214 215 216 217
9  220 221 222 223 224 225 226 227 230 231 232 233 234 235 236 237
A  240 241 242 243 244 245 246 247 250 251 252 253 254 255 256 257
B  260 261 262 263 264 265 266 267 270 271 272 273 274 275 276 277
C  300 301 302 303 304 305 306 307 310 311 312 313 314 315 316 317
D  320 321 322 323 324 325 326 327 330 331 332 333 334 335 336 337
E  340 341 342 343 344 345 346 347 350 351 352 353 354 355 356 357
F  360 361 362 363 364 365 366 367 370 371 372 373 374 375 376 377

If you're having trouble getting the hang of the above chart, here's a hint.

Hex 41 (written as 0x41 in the programing language C) is equivalent to octal 101.

About the Author

Jeffrey Hunter is an Oracle Certified Professional, Java Development Certified Professional, Author, and an Oracle ACE. Jeff currently works as a Senior Database Administrator for The DBA Zone, Inc. located in Pittsburgh, Pennsylvania. His work includes advanced performance tuning, Java and PL/SQL programming, developing high availability solutions, capacity planning, database security, and physical / logical database design in a UNIX / Linux server environment. Jeff's other interests include mathematical encryption theory, tutoring advanced mathematics, programming language processors (compilers and interpreters) in Java and C, LDAP, writing web-based database administration tools, and of course Linux. He has been a Sr. Database Administrator and Software Engineer for over 20 years and maintains his own website site at: http://www.iDevelopment.info. Jeff graduated from Stanislaus State University in Turlock, California, with a Bachelor's degree in Computer Science and Mathematics.



Copyright (c) 1998-2017 Jeffrey M. Hunter. All rights reserved.

All articles, scripts and material located at the Internet address of http://www.idevelopment.info is the copyright of Jeffrey M. Hunter and is protected under copyright laws of the United States. This document may not be hosted on any other site without my express, prior, written permission. Application to host any of the material elsewhere can be made by contacting me at jhunter@idevelopment.info.

I have made every effort and taken great care in making sure that the material included on my web site is technically accurate, but I disclaim any and all responsibility for any loss, damage or destruction of data or any other property which may arise from relying on it. I will in no case be liable for any monetary damages arising from such loss, damage or destruction.

Last modified on
Thursday, 16-Sep-2010 19:39:13 EDT
Page Count: 576