Air
Force Composite Score Conversions
Mechanical Aptitude (M-Score)
The Air Force Mechanical Aptitude Score derives from three areas of the ASVAB: General Science (GS), Mechanical Comprehension (MC), and Auto/Shop (AS).
To determine your Air Force Mechanical Composite score, multiply your Auto/Shop raw score by 2, then add the results to your General Science raw score and your Mechanical Comprehension raw score [2AS+GS+MC]. Then, compare the results to the below chart.
| Raw Score |
Mech Score |
Raw Score |
Mech Score |
Raw Score |
Mech Score |
Raw Score |
Mech Score |
| 80 to 128 | 1 | 153 | 11 | 178 | 30 | 205 | 56 |
| 129 | 2 | 154 | 12 | 179 | 31 | 206 | 57 |
| 130 | 2 | 155 | 12 | 180 | 32 | 207 | 58 |
| 131 | 2 | 156 | 13 | 181 | 33 | 208 | 59 |
| 132 | 2 | 157 | 13 | 182 | 34 | 209 | 60 |
| 133 | 2 | 158 | 14 | 183 | 35 | 210 | 60 |
| 134 | 3 | 159 | 15 | 184 | 36 | 211 | 61 |
| 135 | 3 | 160 | 15 | 185 | 37 | 212 | 62 |
| 136 | 3 | 161 | 15 | 186 | 38 | 213 | 63 |
| 137 | 4 | 162 | 17 | 187 | 39 | 214 | 64 |
| 138 | 4 | 163 | 18 | 188 | 40 | 215 | 65 |
| 139 | 4 | 164 | 18 | 189 | 40 | 216 | 66 |
| 140 | 5 | 165 | 19 | 190 | 41 | 217 | 67 |
| 141 | 5 | 166 | 20 | 191 | 42 | 218 | 68 |
| 142 | 5 | 167 | 21 | 192 | 43 | 219 | 68 |
| 143 | 6 | 168 | 21 | 193 | 44 | 220 | 69 |
| 144 | 6 | 169 | 22 | 194 | 45 | 221 | 70 |
| 145 | 7 | 170 | 23 | 195 | 46 | 222 | 71 |
| 146 | 7 | 171 | 24 | 196 | 47 | 223 | 72 |
| 147 | 8 | 172 | 25 | 197 | 48 | 224 | 72 |
| 148 | 8 | 173 | 26 | 198 | 49 | 225 | 73 |
| 149 | 9 | 174 | 26 | 199 | 50 | 226 | 74 |
| 150 | 9 | 175 | 27 | 200 | 51 | 227 | 74 |
| 151 | 10 | 176 | 28 | 201 | 52 | 228 | 75 |
| 152 | 11 | 177 | 29 | 202 | 53 | 229 | 76 |
| Raw Score |
Mech Score |
Raw Score |
Mech Score |
| 230 | 77 | 250 | 91 |
| 231 | 78 | 251 | 91 |
| 232 | 78 | 252 | 92 |
| 233 | 79 | 253 | 92 |
| 234 | 80 | 254 | 93 |
| 235 | 81 | 255 | 93 |
| 236 | 81 | 256 | 94 |
| 237 | 82 | 257 | 94 |
| 238 | 83 | 258 | 95 |
| 239 | 83 | 259 | 96 |
| 240 | 84 | 260 | 96 |
| 241 | 85 | 261 | 96 |
| 242 | 86 | 262 | 97 |
| 243 | 86 | 263 | 97 |
| 244 | 87 | 264 | 98 |
| 245 | 88 | 265 | 98 |
| 246 | 88 | 266 | 98 |
| 247 | 89 | 267-320 | 99 |
| 248 | 89 | ||
| 249 | 90 |

