Dr Andrew Scott G7VAV
MBCS, MIET, Member ACM, Member IEEE
My photo
Senior Lecturer
School of Computing
    and Communications

D35 InfoLab21
Lancaster University
Lancaster, LA1 4WA
United Kingdom
 
November 2025
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Decimal, Octal, Hexadecimal and Binary conversion
The following gives mappings between Decimal, Octal, Hexadecimal and Binary numbers.
Dec Oct Hex Binary
0 000 00 0000,0000
1 001 01 0000,0001
2 002 02 0000,0010
3 003 03 0000,0011
4 004 04 0000,0100
5 005 05 0000,0101
6 006 06 0000,0110
7 007 07 0000,0111
8 010 08 0000,1000
9 011 09 0000,1001
10 012 0A 0000,1010
11 013 0B 0000,1011
12 014 0C 0000,1100
13 015 0D 0000,1101
14 016 0E 0000,1110
15 017 0F 0000,1111
16 020 10 0001,0000
17 021 11 0001,0001
18 022 12 0001,0010
19 023 13 0001,0011
20 024 14 0001,0100
21 025 15 0001,0101
22 026 16 0001,0110
23 027 17 0001,0111
24 030 18 0001,1000
25 031 19 0001,1001
26 032 1A 0001,1010
27 033 1B 0001,1011
28 034 1C 0001,1100
29 035 1D 0001,1101
30 036 1E 0001,1110
31 037 1F 0001,1111
32 040 20 0010,0000
33 041 21 0010,0001
34 042 22 0010,0010
35 043 23 0010,0011
36 044 24 0010,0100
37 045 25 0010,0101
38 046 26 0010,0110
39 047 27 0010,0111
40 050 28 0010,1000
41 051 29 0010,1001
42 052 2A 0010,1010
43 053 2B 0010,1011
44 054 2C 0010,1100
45 055 2D 0010,1101
46 056 2E 0010,1110
47 057 2F 0010,1111
48 060 30 0011,0000
49 061 31 0011,0001
50 062 32 0011,0010
51 063 33 0011,0011
52 064 34 0011,0100
53 065 35 0011,0101
54 066 36 0011,0110
55 067 37 0011,0111
56 070 38 0011,1000
57 071 39 0011,1001
58 072 3A 0011,1010
59 073 3B 0011,1011
60 074 3C 0011,1100
61 075 3D 0011,1101
62 076 3E 0011,1110
63 077 3F 0011,1111
Dec Oct Hex Binary
64 100 40 0100,0000
65 101 41 0100,0001
66 102 42 0100,0010
67 103 43 0100,0011
68 104 44 0100,0100
69 105 45 0100,0101
70 106 46 0100,0110
71 107 47 0100,0111
72 110 48 0100,1000
73 111 49 0100,1001
74 112 4A 0100,1010
75 113 4B 0100,1011
76 114 4C 0100,1100
77 115 4D 0100,1101
78 116 4E 0100,1110
79 117 4F 0100,1111
80 120 50 0101,0000
81 121 51 0101,0001
82 122 52 0101,0010
83 123 53 0101,0011
84 124 54 0101,0100
85 125 55 0101,0101
86 126 56 0101,0110
87 127 57 0101,0111
88 130 58 0101,1000
89 131 59 0101,1001
90 132 5A 0101,1010
91 133 5B 0101,1011
92 134 5C 0101,1100
93 135 5D 0101,1101
94 136 5E 0101,1110
95 137 5F 0101,1111
96 140 60 0110,0000
97 141 61 0110,0001
98 142 62 0110,0010
99 143 63 0110,0011
100 144 64 0110,0100
101 145 65 0110,0101
102 146 66 0110,0110
103 147 67 0110,0111
104 150 68 0110,1000
105 151 69 0110,1001
106 152 6A 0110,1010
107 153 6B 0110,1011
108 154 6C 0110,1100
109 155 6D 0110,1101
110 156 6E 0110,1110
111 157 6F 0110,1111
112 160 70 0111,0000
113 161 71 0111,0001
114 162 72 0111,0010
115 163 73 0111,0011
116 164 74 0111,0100
117 165 75 0111,0101
118 166 76 0111,0110
119 167 77 0111,0111
120 170 78 0111,1000
121 171 79 0111,1001
122 172 7A 0111,1010
123 173 7B 0111,1011
124 174 7C 0111,1100
125 175 7D 0111,1101
126 176 7E 0111,1110
127 177 7F 0111,1111
Dec Oct Hex Binary
128 200 80 1000,0000
129 201 81 1000,0001
130 202 82 1000,0010
131 203 83 1000,0011
132 204 84 1000,0100
133 205 85 1000,0101
134 206 86 1000,0110
135 207 87 1000,0111
136 210 88 1000,1000
137 211 89 1000,1001
138 212 8A 1000,1010
139 213 8B 1000,1011
140 214 8C 1000,1100
141 215 8D 1000,1101
142 216 8E 1000,1110
143 217 8F 1000,1111
144 220 90 1001,0000
145 221 91 1001,0001
146 222 92 1001,0010
147 223 93 1001,0011
148 224 94 1001,0100
149 225 95 1001,0101
150 226 96 1001,0110
151 227 97 1001,0111
152 230 98 1001,1000
153 231 99 1001,1001
154 232 9A 1001,1010
155 233 9B 1001,1011
156 234 9C 1001,1100
157 235 9D 1001,1101
158 236 9E 1001,1110
159 237 9F 1001,1111
160 240 A0 1010,0000
161 241 A1 1010,0001
162 242 A2 1010,0010
163 243 A3 1010,0011
164 244 A4 1010,0100
165 245 A5 1010,0101
166 246 A6 1010,0110
167 247 A7 1010,0111
168 250 A8 1010,1000
169 251 A9 1010,1001
170 252 AA 1010,1010
171 253 AB 1010,1011
172 254 AC 1010,1100
173 255 AD 1010,1101
174 256 AE 1010,1110
175 257 AF 1010,1111
176 260 B0 1011,0000
177 261 B1 1011,0001
178 262 B2 1011,0010
179 263 B3 1011,0011
180 264 B4 1011,0100
181 265 B5 1011,0101
182 266 B6 1011,0110
183 267 B7 1011,0111
184 270 B8 1011,1000
185 271 B9 1011,1001
186 272 BA 1011,1010
187 273 BB 1011,1011
188 274 BC 1011,1100
189 275 BD 1011,1101
190 276 BE 1011,1110
191 277 BF 1011,1111
Dec Oct Hex Binary
192 300 C0 1100,0000
193 301 C1 1100,0001
194 302 C2 1100,0010
195 303 C3 1100,0011
196 304 C4 1100,0100
197 305 C5 1100,0101
198 306 C6 1100,0110
199 307 C7 1100,0111
200 310 C8 1100,1000
201 311 C9 1100,1001
202 312 CA 1100,1010
203 313 CB 1100,1011
204 314 CC 1100,1100
205 315 CD 1100,1101
206 316 CE 1100,1110
207 317 CF 1100,1111
208 320 D0 1101,0000
209 321 D1 1101,0001
210 322 D2 1101,0010
211 323 D3 1101,0011
212 324 D4 1101,0100
213 325 D5 1101,0101
214 326 D6 1101,0110
215 327 D7 1101,0111
216 330 D8 1101,1000
217 331 D9 1101,1001
218 332 DA 1101,1010
219 333 DB 1101,1011
220 334 DC 1101,1100
221 335 DD 1101,1101
222 336 DE 1101,1110
223 337 DF 1101,1111
224 340 E0 1110,0000
225 341 E1 1110,0001
226 342 E2 1110,0010
227 343 E3 1110,0011
228 344 E4 1110,0100
229 345 E5 1110,0101
230 346 E6 1110,0110
231 347 E7 1110,0111
232 350 E8 1110,1000
233 351 E9 1110,1001
234 352 EA 1110,1010
235 353 EB 1110,1011
236 354 EC 1110,1100
237 355 ED 1110,1101
238 356 EE 1110,1110
239 357 EF 1110,1111
240 360 F0 1111,0000
241 361 F1 1111,0001
242 362 F2 1111,0010
243 363 F3 1111,0011
244 364 F4 1111,0100
245 365 F5 1111,0101
246 366 F6 1111,0110
247 367 F7 1111,0111
248 370 F8 1111,1000
249 371 F9 1111,1001
250 372 FA 1111,1010
251 373 FB 1111,1011
252 374 FC 1111,1100
253 375 FD 1111,1101
254 376 FE 1111,1110
255 377 FF 1111,1111
for client (none)
© Andrew Scott 2006 - 2025,
All Rights Reserved
http://www.andrew-scott.uk/
Andrew Scott
http://www.andrew-scott.co.uk/