CalculatorsBlood sugarA1C calculator
A1C calculator
Turn average glucose into an estimated A1C, or the other way round, and see how far real people sat from that average.
Estimated A1CExample
6.0% A1C
Prediabetes range
5.7 to 6.4% is the range the ADA calls prediabetes. A lab A1C is what confirms it.
- A1C
- 6.0%42 mmol/mol
- Average glucose
- 126 mg/dL7.0 mmol/L
- Where most people with this A1C sat
- 100 to 153 mg/dL95% of people in the ADAG study
See the working
A1C = (glucose + 46.7) ÷ 28.7(126 + 46.7) ÷ 28.7 = 6.02%What A1C measures
A1C is the share of your haemoglobin with glucose stuck to it. Red blood cells live for about three months, so it reflects your blood sugar over roughly that long, weighted towards the most recent weeks.
The ADAG study matched lab A1C against round-the-clock glucose readings in 507 people, and gave us the simple line this calculator uses.
Why you see a range, not just a number
The line is an average. In the study, two people with the same A1C could have quite different average glucose, so we show the 95% spread beside the estimate. If your sensor's average and your A1C don't quite agree, that's usually why.
Anything that changes how long red blood cells live can shift A1C without your glucose changing: anaemia, iron deficiency, kidney disease, pregnancy, a recent transfusion and some haemoglobin variants.
Average glucose to A1C chart
Estimated A1C for each average glucose, from the ADAG equation. A lab A1C is what's used for diagnosis.
| Average glucose | In mmol/L | Estimated A1C | Range |
|---|---|---|---|
| 70 mg/dL | 3.9 | 4.1% | Below the prediabetes range |
| 71 mg/dL | 3.9 | 4.1% | Below the prediabetes range |
| 72 mg/dL | 4.0 | 4.1% | Below the prediabetes range |
| 73 mg/dL | 4.1 | 4.2% | Below the prediabetes range |
| 74 mg/dL | 4.1 | 4.2% | Below the prediabetes range |
| 75 mg/dL | 4.2 | 4.2% | Below the prediabetes range |
| 76 mg/dL | 4.2 | 4.3% | Below the prediabetes range |
| 77 mg/dL | 4.3 | 4.3% | Below the prediabetes range |
| 78 mg/dL | 4.3 | 4.3% | Below the prediabetes range |
| 79 mg/dL | 4.4 | 4.4% | Below the prediabetes range |
| 80 mg/dL | 4.4 | 4.4% | Below the prediabetes range |
| 81 mg/dL | 4.5 | 4.4% | Below the prediabetes range |
| 82 mg/dL | 4.6 | 4.5% | Below the prediabetes range |
| 83 mg/dL | 4.6 | 4.5% | Below the prediabetes range |
| 84 mg/dL | 4.7 | 4.6% | Below the prediabetes range |
| 85 mg/dL | 4.7 | 4.6% | Below the prediabetes range |
| 86 mg/dL | 4.8 | 4.6% | Below the prediabetes range |
| 87 mg/dL | 4.8 | 4.7% | Below the prediabetes range |
| 88 mg/dL | 4.9 | 4.7% | Below the prediabetes range |
| 89 mg/dL | 4.9 | 4.7% | Below the prediabetes range |
| 90 mg/dL | 5.0 | 4.8% | Below the prediabetes range |
| 91 mg/dL | 5.1 | 4.8% | Below the prediabetes range |
| 92 mg/dL | 5.1 | 4.8% | Below the prediabetes range |
| 93 mg/dL | 5.2 | 4.9% | Below the prediabetes range |
| 94 mg/dL | 5.2 | 4.9% | Below the prediabetes range |
| 95 mg/dL | 5.3 | 4.9% | Below the prediabetes range |
| 96 mg/dL | 5.3 | 5.0% | Below the prediabetes range |
| 97 mg/dL | 5.4 | 5.0% | Below the prediabetes range |
| 98 mg/dL | 5.4 | 5.0% | Below the prediabetes range |
| 99 mg/dL | 5.5 | 5.1% | Below the prediabetes range |
| 100 mg/dL | 5.6 | 5.1% | Below the prediabetes range |
| 101 mg/dL | 5.6 | 5.1% | Below the prediabetes range |
| 102 mg/dL | 5.7 | 5.2% | Below the prediabetes range |
| 103 mg/dL | 5.7 | 5.2% | Below the prediabetes range |
| 104 mg/dL | 5.8 | 5.3% | Below the prediabetes range |
| 105 mg/dL | 5.8 | 5.3% | Below the prediabetes range |
| 106 mg/dL | 5.9 | 5.3% | Below the prediabetes range |
| 107 mg/dL | 5.9 | 5.4% | Below the prediabetes range |
| 108 mg/dL | 6.0 | 5.4% | Below the prediabetes range |
| 109 mg/dL | 6.1 | 5.4% | Below the prediabetes range |
| 110 mg/dL | 6.1 | 5.5% | Below the prediabetes range |
| 111 mg/dL | 6.2 | 5.5% | Below the prediabetes range |
| 112 mg/dL | 6.2 | 5.5% | Below the prediabetes range |
| 113 mg/dL | 6.3 | 5.6% | Below the prediabetes range |
| 114 mg/dL | 6.3 | 5.6% | Below the prediabetes range |
| 115 mg/dL | 6.4 | 5.6% | Below the prediabetes range |
| 116 mg/dL | 6.4 | 5.7% | Below the prediabetes range |
| 117 mg/dL | 6.5 | 5.7% | Prediabetes range |
| 118 mg/dL | 6.5 | 5.7% | Prediabetes range |
| 119 mg/dL | 6.6 | 5.8% | Prediabetes range |
| 120 mg/dL | 6.7 | 5.8% | Prediabetes range |
| 121 mg/dL | 6.7 | 5.8% | Prediabetes range |
| 122 mg/dL | 6.8 | 5.9% | Prediabetes range |
| 123 mg/dL | 6.8 | 5.9% | Prediabetes range |
| 124 mg/dL | 6.9 | 5.9% | Prediabetes range |
| 125 mg/dL | 6.9 | 6.0% | Prediabetes range |
| 126 mg/dL | 7.0 | 6.0% | Prediabetes range |
| 127 mg/dL | 7.0 | 6.1% | Prediabetes range |
| 128 mg/dL | 7.1 | 6.1% | Prediabetes range |
| 129 mg/dL | 7.2 | 6.1% | Prediabetes range |
| 130 mg/dL | 7.2 | 6.2% | Prediabetes range |
| 131 mg/dL | 7.3 | 6.2% | Prediabetes range |
| 132 mg/dL | 7.3 | 6.2% | Prediabetes range |
| 133 mg/dL | 7.4 | 6.3% | Prediabetes range |
| 134 mg/dL | 7.4 | 6.3% | Prediabetes range |
| 135 mg/dL | 7.5 | 6.3% | Prediabetes range |
| 136 mg/dL | 7.5 | 6.4% | Prediabetes range |
| 137 mg/dL | 7.6 | 6.4% | Prediabetes range |
| 138 mg/dL | 7.7 | 6.4% | Prediabetes range |
| 139 mg/dL | 7.7 | 6.5% | Prediabetes range |
| 140 mg/dL | 7.8 | 6.5% | Diabetes range |
| 141 mg/dL | 7.8 | 6.5% | Diabetes range |
| 142 mg/dL | 7.9 | 6.6% | Diabetes range |
| 143 mg/dL | 7.9 | 6.6% | Diabetes range |
| 144 mg/dL | 8.0 | 6.6% | Diabetes range |
| 145 mg/dL | 8.0 | 6.7% | Diabetes range |
| 146 mg/dL | 8.1 | 6.7% | Diabetes range |
| 147 mg/dL | 8.2 | 6.7% | Diabetes range |
| 148 mg/dL | 8.2 | 6.8% | Diabetes range |
| 149 mg/dL | 8.3 | 6.8% | Diabetes range |
| 150 mg/dL | 8.3 | 6.9% | Diabetes range |
| 151 mg/dL | 8.4 | 6.9% | Diabetes range |
| 152 mg/dL | 8.4 | 6.9% | Diabetes range |
| 153 mg/dL | 8.5 | 7.0% | Diabetes range |
| 154 mg/dL | 8.5 | 7.0% | Diabetes range |
| 155 mg/dL | 8.6 | 7.0% | Diabetes range |
| 156 mg/dL | 8.7 | 7.1% | Diabetes range |
| 157 mg/dL | 8.7 | 7.1% | Diabetes range |
| 158 mg/dL | 8.8 | 7.1% | Diabetes range |
| 159 mg/dL | 8.8 | 7.2% | Diabetes range |
| 160 mg/dL | 8.9 | 7.2% | Diabetes range |
| 161 mg/dL | 8.9 | 7.2% | Diabetes range |
| 162 mg/dL | 9.0 | 7.3% | Diabetes range |
| 163 mg/dL | 9.0 | 7.3% | Diabetes range |
| 164 mg/dL | 9.1 | 7.3% | Diabetes range |
| 165 mg/dL | 9.2 | 7.4% | Diabetes range |
| 166 mg/dL | 9.2 | 7.4% | Diabetes range |
| 167 mg/dL | 9.3 | 7.4% | Diabetes range |
| 168 mg/dL | 9.3 | 7.5% | Diabetes range |
| 169 mg/dL | 9.4 | 7.5% | Diabetes range |
| 170 mg/dL | 9.4 | 7.6% | Diabetes range |
| 171 mg/dL | 9.5 | 7.6% | Diabetes range |
| 172 mg/dL | 9.5 | 7.6% | Diabetes range |
| 173 mg/dL | 9.6 | 7.7% | Diabetes range |
| 174 mg/dL | 9.7 | 7.7% | Diabetes range |
| 175 mg/dL | 9.7 | 7.7% | Diabetes range |
| 176 mg/dL | 9.8 | 7.8% | Diabetes range |
| 177 mg/dL | 9.8 | 7.8% | Diabetes range |
| 178 mg/dL | 9.9 | 7.8% | Diabetes range |
| 179 mg/dL | 9.9 | 7.9% | Diabetes range |
| 180 mg/dL | 10.0 | 7.9% | Diabetes range |
| 181 mg/dL | 10.0 | 7.9% | Diabetes range |
| 182 mg/dL | 10.1 | 8.0% | Diabetes range |
| 183 mg/dL | 10.2 | 8.0% | Diabetes range |
| 184 mg/dL | 10.2 | 8.0% | Diabetes range |
| 185 mg/dL | 10.3 | 8.1% | Diabetes range |
| 186 mg/dL | 10.3 | 8.1% | Diabetes range |
| 187 mg/dL | 10.4 | 8.1% | Diabetes range |
| 188 mg/dL | 10.4 | 8.2% | Diabetes range |
| 189 mg/dL | 10.5 | 8.2% | Diabetes range |
| 190 mg/dL | 10.5 | 8.2% | Diabetes range |
| 191 mg/dL | 10.6 | 8.3% | Diabetes range |
| 192 mg/dL | 10.7 | 8.3% | Diabetes range |
| 193 mg/dL | 10.7 | 8.4% | Diabetes range |
| 194 mg/dL | 10.8 | 8.4% | Diabetes range |
| 195 mg/dL | 10.8 | 8.4% | Diabetes range |
| 196 mg/dL | 10.9 | 8.5% | Diabetes range |
| 197 mg/dL | 10.9 | 8.5% | Diabetes range |
| 198 mg/dL | 11.0 | 8.5% | Diabetes range |
| 199 mg/dL | 11.0 | 8.6% | Diabetes range |
| 200 mg/dL | 11.1 | 8.6% | Diabetes range |
| 201 mg/dL | 11.2 | 8.6% | Diabetes range |
| 202 mg/dL | 11.2 | 8.7% | Diabetes range |
| 203 mg/dL | 11.3 | 8.7% | Diabetes range |
| 204 mg/dL | 11.3 | 8.7% | Diabetes range |
| 205 mg/dL | 11.4 | 8.8% | Diabetes range |
| 206 mg/dL | 11.4 | 8.8% | Diabetes range |
| 207 mg/dL | 11.5 | 8.8% | Diabetes range |
| 208 mg/dL | 11.5 | 8.9% | Diabetes range |
| 209 mg/dL | 11.6 | 8.9% | Diabetes range |
| 210 mg/dL | 11.7 | 8.9% | Diabetes range |
| 211 mg/dL | 11.7 | 9.0% | Diabetes range |
| 212 mg/dL | 11.8 | 9.0% | Diabetes range |
| 213 mg/dL | 11.8 | 9.0% | Diabetes range |
| 214 mg/dL | 11.9 | 9.1% | Diabetes range |
| 215 mg/dL | 11.9 | 9.1% | Diabetes range |
| 216 mg/dL | 12.0 | 9.2% | Diabetes range |
| 217 mg/dL | 12.0 | 9.2% | Diabetes range |
| 218 mg/dL | 12.1 | 9.2% | Diabetes range |
| 219 mg/dL | 12.2 | 9.3% | Diabetes range |
| 220 mg/dL | 12.2 | 9.3% | Diabetes range |
| 221 mg/dL | 12.3 | 9.3% | Diabetes range |
| 222 mg/dL | 12.3 | 9.4% | Diabetes range |
| 223 mg/dL | 12.4 | 9.4% | Diabetes range |
| 224 mg/dL | 12.4 | 9.4% | Diabetes range |
| 225 mg/dL | 12.5 | 9.5% | Diabetes range |
| 226 mg/dL | 12.5 | 9.5% | Diabetes range |
| 227 mg/dL | 12.6 | 9.5% | Diabetes range |
| 228 mg/dL | 12.7 | 9.6% | Diabetes range |
| 229 mg/dL | 12.7 | 9.6% | Diabetes range |
| 230 mg/dL | 12.8 | 9.6% | Diabetes range |
| 231 mg/dL | 12.8 | 9.7% | Diabetes range |
| 232 mg/dL | 12.9 | 9.7% | Diabetes range |
| 233 mg/dL | 12.9 | 9.7% | Diabetes range |
| 234 mg/dL | 13.0 | 9.8% | Diabetes range |
| 235 mg/dL | 13.0 | 9.8% | Diabetes range |
| 236 mg/dL | 13.1 | 9.9% | Diabetes range |
| 237 mg/dL | 13.2 | 9.9% | Diabetes range |
| 238 mg/dL | 13.2 | 9.9% | Diabetes range |
| 239 mg/dL | 13.3 | 10.0% | Diabetes range |
| 240 mg/dL | 13.3 | 10.0% | Diabetes range |
| 241 mg/dL | 13.4 | 10.0% | Diabetes range |
| 242 mg/dL | 13.4 | 10.1% | Diabetes range |
| 243 mg/dL | 13.5 | 10.1% | Diabetes range |
| 244 mg/dL | 13.5 | 10.1% | Diabetes range |
| 245 mg/dL | 13.6 | 10.2% | Diabetes range |
| 246 mg/dL | 13.7 | 10.2% | Diabetes range |
| 247 mg/dL | 13.7 | 10.2% | Diabetes range |
| 248 mg/dL | 13.8 | 10.3% | Diabetes range |
| 249 mg/dL | 13.8 | 10.3% | Diabetes range |
| 250 mg/dL | 13.9 | 10.3% | Diabetes range |
| 251 mg/dL | 13.9 | 10.4% | Diabetes range |
| 252 mg/dL | 14.0 | 10.4% | Diabetes range |
| 253 mg/dL | 14.0 | 10.4% | Diabetes range |
| 254 mg/dL | 14.1 | 10.5% | Diabetes range |
| 255 mg/dL | 14.2 | 10.5% | Diabetes range |
| 256 mg/dL | 14.2 | 10.5% | Diabetes range |
| 257 mg/dL | 14.3 | 10.6% | Diabetes range |
| 258 mg/dL | 14.3 | 10.6% | Diabetes range |
| 259 mg/dL | 14.4 | 10.7% | Diabetes range |
| 260 mg/dL | 14.4 | 10.7% | Diabetes range |
| 261 mg/dL | 14.5 | 10.7% | Diabetes range |
| 262 mg/dL | 14.5 | 10.8% | Diabetes range |
| 263 mg/dL | 14.6 | 10.8% | Diabetes range |
| 264 mg/dL | 14.7 | 10.8% | Diabetes range |
| 265 mg/dL | 14.7 | 10.9% | Diabetes range |
| 266 mg/dL | 14.8 | 10.9% | Diabetes range |
| 267 mg/dL | 14.8 | 10.9% | Diabetes range |
| 268 mg/dL | 14.9 | 11.0% | Diabetes range |
| 269 mg/dL | 14.9 | 11.0% | Diabetes range |
| 270 mg/dL | 15.0 | 11.0% | Diabetes range |
| 271 mg/dL | 15.0 | 11.1% | Diabetes range |
| 272 mg/dL | 15.1 | 11.1% | Diabetes range |
| 273 mg/dL | 15.2 | 11.1% | Diabetes range |
| 274 mg/dL | 15.2 | 11.2% | Diabetes range |
| 275 mg/dL | 15.3 | 11.2% | Diabetes range |
| 276 mg/dL | 15.3 | 11.2% | Diabetes range |
| 277 mg/dL | 15.4 | 11.3% | Diabetes range |
| 278 mg/dL | 15.4 | 11.3% | Diabetes range |
| 279 mg/dL | 15.5 | 11.3% | Diabetes range |
| 280 mg/dL | 15.5 | 11.4% | Diabetes range |
| 281 mg/dL | 15.6 | 11.4% | Diabetes range |
| 282 mg/dL | 15.7 | 11.5% | Diabetes range |
| 283 mg/dL | 15.7 | 11.5% | Diabetes range |
| 284 mg/dL | 15.8 | 11.5% | Diabetes range |
| 285 mg/dL | 15.8 | 11.6% | Diabetes range |
| 286 mg/dL | 15.9 | 11.6% | Diabetes range |
| 287 mg/dL | 15.9 | 11.6% | Diabetes range |
| 288 mg/dL | 16.0 | 11.7% | Diabetes range |
| 289 mg/dL | 16.0 | 11.7% | Diabetes range |
| 290 mg/dL | 16.1 | 11.7% | Diabetes range |
| 291 mg/dL | 16.2 | 11.8% | Diabetes range |
| 292 mg/dL | 16.2 | 11.8% | Diabetes range |
| 293 mg/dL | 16.3 | 11.8% | Diabetes range |
| 294 mg/dL | 16.3 | 11.9% | Diabetes range |
| 295 mg/dL | 16.4 | 11.9% | Diabetes range |
| 296 mg/dL | 16.4 | 11.9% | Diabetes range |
| 297 mg/dL | 16.5 | 12.0% | Diabetes range |
| 298 mg/dL | 16.5 | 12.0% | Diabetes range |
| 299 mg/dL | 16.6 | 12.0% | Diabetes range |
| 300 mg/dL | 16.7 | 12.1% | Diabetes range |
| 301 mg/dL | 16.7 | 12.1% | Diabetes range |
| 302 mg/dL | 16.8 | 12.1% | Diabetes range |
| 303 mg/dL | 16.8 | 12.2% | Diabetes range |
| 304 mg/dL | 16.9 | 12.2% | Diabetes range |
| 305 mg/dL | 16.9 | 12.3% | Diabetes range |
| 306 mg/dL | 17.0 | 12.3% | Diabetes range |
| 307 mg/dL | 17.0 | 12.3% | Diabetes range |
| 308 mg/dL | 17.1 | 12.4% | Diabetes range |
| 309 mg/dL | 17.2 | 12.4% | Diabetes range |
| 310 mg/dL | 17.2 | 12.4% | Diabetes range |
| 311 mg/dL | 17.3 | 12.5% | Diabetes range |
| 312 mg/dL | 17.3 | 12.5% | Diabetes range |
| 313 mg/dL | 17.4 | 12.5% | Diabetes range |
| 314 mg/dL | 17.4 | 12.6% | Diabetes range |
| 315 mg/dL | 17.5 | 12.6% | Diabetes range |
| 316 mg/dL | 17.5 | 12.6% | Diabetes range |
| 317 mg/dL | 17.6 | 12.7% | Diabetes range |
| 318 mg/dL | 17.7 | 12.7% | Diabetes range |
| 319 mg/dL | 17.7 | 12.7% | Diabetes range |
| 320 mg/dL | 17.8 | 12.8% | Diabetes range |
| 321 mg/dL | 17.8 | 12.8% | Diabetes range |
| 322 mg/dL | 17.9 | 12.8% | Diabetes range |
| 323 mg/dL | 17.9 | 12.9% | Diabetes range |
| 324 mg/dL | 18.0 | 12.9% | Diabetes range |
| 325 mg/dL | 18.0 | 13.0% | Diabetes range |
| 326 mg/dL | 18.1 | 13.0% | Diabetes range |
| 327 mg/dL | 18.2 | 13.0% | Diabetes range |
| 328 mg/dL | 18.2 | 13.1% | Diabetes range |
| 329 mg/dL | 18.3 | 13.1% | Diabetes range |
| 330 mg/dL | 18.3 | 13.1% | Diabetes range |
| 331 mg/dL | 18.4 | 13.2% | Diabetes range |
| 332 mg/dL | 18.4 | 13.2% | Diabetes range |
| 333 mg/dL | 18.5 | 13.2% | Diabetes range |
| 334 mg/dL | 18.5 | 13.3% | Diabetes range |
| 335 mg/dL | 18.6 | 13.3% | Diabetes range |
| 336 mg/dL | 18.7 | 13.3% | Diabetes range |
| 337 mg/dL | 18.7 | 13.4% | Diabetes range |
| 338 mg/dL | 18.8 | 13.4% | Diabetes range |
| 339 mg/dL | 18.8 | 13.4% | Diabetes range |
| 340 mg/dL | 18.9 | 13.5% | Diabetes range |
| 341 mg/dL | 18.9 | 13.5% | Diabetes range |
| 342 mg/dL | 19.0 | 13.5% | Diabetes range |
| 343 mg/dL | 19.0 | 13.6% | Diabetes range |
| 344 mg/dL | 19.1 | 13.6% | Diabetes range |
| 345 mg/dL | 19.1 | 13.6% | Diabetes range |
| 346 mg/dL | 19.2 | 13.7% | Diabetes range |
| 347 mg/dL | 19.3 | 13.7% | Diabetes range |
| 348 mg/dL | 19.3 | 13.8% | Diabetes range |
| 349 mg/dL | 19.4 | 13.8% | Diabetes range |
| 350 mg/dL | 19.4 | 13.8% | Diabetes range |
| 351 mg/dL | 19.5 | 13.9% | Diabetes range |
| 352 mg/dL | 19.5 | 13.9% | Diabetes range |
| 353 mg/dL | 19.6 | 13.9% | Diabetes range |
| 354 mg/dL | 19.6 | 14.0% | Diabetes range |
| 355 mg/dL | 19.7 | 14.0% | Diabetes range |
| 356 mg/dL | 19.8 | 14.0% | Diabetes range |
| 357 mg/dL | 19.8 | 14.1% | Diabetes range |
| 358 mg/dL | 19.9 | 14.1% | Diabetes range |
| 359 mg/dL | 19.9 | 14.1% | Diabetes range |
| 360 mg/dL | 20.0 | 14.2% | Diabetes range |
| 361 mg/dL | 20.0 | 14.2% | Diabetes range |
| 362 mg/dL | 20.1 | 14.2% | Diabetes range |
| 363 mg/dL | 20.1 | 14.3% | Diabetes range |
| 364 mg/dL | 20.2 | 14.3% | Diabetes range |
| 365 mg/dL | 20.3 | 14.3% | Diabetes range |
| 366 mg/dL | 20.3 | 14.4% | Diabetes range |
| 367 mg/dL | 20.4 | 14.4% | Diabetes range |
| 368 mg/dL | 20.4 | 14.4% | Diabetes range |
| 369 mg/dL | 20.5 | 14.5% | Diabetes range |
| 370 mg/dL | 20.5 | 14.5% | Diabetes range |
| 371 mg/dL | 20.6 | 14.6% | Diabetes range |
| 372 mg/dL | 20.6 | 14.6% | Diabetes range |
| 373 mg/dL | 20.7 | 14.6% | Diabetes range |
| 374 mg/dL | 20.8 | 14.7% | Diabetes range |
| 375 mg/dL | 20.8 | 14.7% | Diabetes range |
| 376 mg/dL | 20.9 | 14.7% | Diabetes range |
| 377 mg/dL | 20.9 | 14.8% | Diabetes range |
| 378 mg/dL | 21.0 | 14.8% | Diabetes range |
| 379 mg/dL | 21.0 | 14.8% | Diabetes range |
| 380 mg/dL | 21.1 | 14.9% | Diabetes range |
| 381 mg/dL | 21.1 | 14.9% | Diabetes range |
| 382 mg/dL | 21.2 | 14.9% | Diabetes range |
| 383 mg/dL | 21.3 | 15.0% | Diabetes range |
| 384 mg/dL | 21.3 | 15.0% | Diabetes range |
| 385 mg/dL | 21.4 | 15.0% | Diabetes range |
| 386 mg/dL | 21.4 | 15.1% | Diabetes range |
| 387 mg/dL | 21.5 | 15.1% | Diabetes range |
| 388 mg/dL | 21.5 | 15.1% | Diabetes range |
| 389 mg/dL | 21.6 | 15.2% | Diabetes range |
| 390 mg/dL | 21.6 | 15.2% | Diabetes range |
| 391 mg/dL | 21.7 | 15.3% | Diabetes range |
| 392 mg/dL | 21.8 | 15.3% | Diabetes range |
| 393 mg/dL | 21.8 | 15.3% | Diabetes range |
| 394 mg/dL | 21.9 | 15.4% | Diabetes range |
| 395 mg/dL | 21.9 | 15.4% | Diabetes range |
| 396 mg/dL | 22.0 | 15.4% | Diabetes range |
| 397 mg/dL | 22.0 | 15.5% | Diabetes range |
| 398 mg/dL | 22.1 | 15.5% | Diabetes range |
| 399 mg/dL | 22.1 | 15.5% | Diabetes range |
| 400 mg/dL | 22.2 | 15.6% | Diabetes range |
A1C to average glucose chart
The average glucose each A1C stands for, with the IFCC unit (mmol/mol) many countries print.
| A1C | In mmol/mol | Average glucose | In mmol/L |
|---|---|---|---|
| 4.0% | 20 | 68 mg/dL | 3.8 |
| 4.1% | 21 | 71 mg/dL | 3.9 |
| 4.2% | 22 | 74 mg/dL | 4.1 |
| 4.3% | 23 | 77 mg/dL | 4.3 |
| 4.4% | 25 | 80 mg/dL | 4.4 |
| 4.5% | 26 | 82 mg/dL | 4.6 |
| 4.6% | 27 | 85 mg/dL | 4.7 |
| 4.7% | 28 | 88 mg/dL | 4.9 |
| 4.8% | 29 | 91 mg/dL | 5.1 |
| 4.9% | 30 | 94 mg/dL | 5.2 |
| 5.0% | 31 | 97 mg/dL | 5.4 |
| 5.1% | 32 | 100 mg/dL | 5.5 |
| 5.2% | 33 | 103 mg/dL | 5.7 |
| 5.3% | 34 | 105 mg/dL | 5.9 |
| 5.4% | 36 | 108 mg/dL | 6.0 |
| 5.5% | 37 | 111 mg/dL | 6.2 |
| 5.6% | 38 | 114 mg/dL | 6.3 |
| 5.7% | 39 | 117 mg/dL | 6.5 |
| 5.8% | 40 | 120 mg/dL | 6.6 |
| 5.9% | 41 | 123 mg/dL | 6.8 |
| 6.0% | 42 | 126 mg/dL | 7.0 |
| 6.1% | 43 | 128 mg/dL | 7.1 |
| 6.2% | 44 | 131 mg/dL | 7.3 |
| 6.3% | 45 | 134 mg/dL | 7.4 |
| 6.4% | 46 | 137 mg/dL | 7.6 |
| 6.5% | 48 | 140 mg/dL | 7.8 |
| 6.6% | 49 | 143 mg/dL | 7.9 |
| 6.7% | 50 | 146 mg/dL | 8.1 |
| 6.8% | 51 | 148 mg/dL | 8.2 |
| 6.9% | 52 | 151 mg/dL | 8.4 |
| 7.0% | 53 | 154 mg/dL | 8.6 |
| 7.1% | 54 | 157 mg/dL | 8.7 |
| 7.2% | 55 | 160 mg/dL | 8.9 |
| 7.3% | 56 | 163 mg/dL | 9.0 |
| 7.4% | 57 | 166 mg/dL | 9.2 |
| 7.5% | 58 | 169 mg/dL | 9.4 |
| 7.6% | 60 | 171 mg/dL | 9.5 |
| 7.7% | 61 | 174 mg/dL | 9.7 |
| 7.8% | 62 | 177 mg/dL | 9.8 |
| 7.9% | 63 | 180 mg/dL | 10.0 |
| 8.0% | 64 | 183 mg/dL | 10.2 |
| 8.1% | 65 | 186 mg/dL | 10.3 |
| 8.2% | 66 | 189 mg/dL | 10.5 |
| 8.3% | 67 | 192 mg/dL | 10.6 |
| 8.4% | 68 | 194 mg/dL | 10.8 |
| 8.5% | 69 | 197 mg/dL | 10.9 |
| 8.6% | 70 | 200 mg/dL | 11.1 |
| 8.7% | 72 | 203 mg/dL | 11.3 |
| 8.8% | 73 | 206 mg/dL | 11.4 |
| 8.9% | 74 | 209 mg/dL | 11.6 |
| 9.0% | 75 | 212 mg/dL | 11.7 |
| 9.1% | 76 | 214 mg/dL | 11.9 |
| 9.2% | 77 | 217 mg/dL | 12.1 |
| 9.3% | 78 | 220 mg/dL | 12.2 |
| 9.4% | 79 | 223 mg/dL | 12.4 |
| 9.5% | 80 | 226 mg/dL | 12.5 |
| 9.6% | 81 | 229 mg/dL | 12.7 |
| 9.7% | 83 | 232 mg/dL | 12.9 |
| 9.8% | 84 | 235 mg/dL | 13.0 |
| 9.9% | 85 | 237 mg/dL | 13.2 |
| 10.0% | 86 | 240 mg/dL | 13.3 |
| 10.1% | 87 | 243 mg/dL | 13.5 |
| 10.2% | 88 | 246 mg/dL | 13.7 |
| 10.3% | 89 | 249 mg/dL | 13.8 |
| 10.4% | 90 | 252 mg/dL | 14.0 |
| 10.5% | 91 | 255 mg/dL | 14.1 |
| 10.6% | 92 | 258 mg/dL | 14.3 |
| 10.7% | 93 | 260 mg/dL | 14.5 |
| 10.8% | 95 | 263 mg/dL | 14.6 |
| 10.9% | 96 | 266 mg/dL | 14.8 |
| 11.0% | 97 | 269 mg/dL | 14.9 |
| 11.1% | 98 | 272 mg/dL | 15.1 |
| 11.2% | 99 | 275 mg/dL | 15.2 |
| 11.3% | 100 | 278 mg/dL | 15.4 |
| 11.4% | 101 | 280 mg/dL | 15.6 |
| 11.5% | 102 | 283 mg/dL | 15.7 |
| 11.6% | 103 | 286 mg/dL | 15.9 |
| 11.7% | 104 | 289 mg/dL | 16.0 |
| 11.8% | 105 | 292 mg/dL | 16.2 |
| 11.9% | 107 | 295 mg/dL | 16.4 |
| 12.0% | 108 | 298 mg/dL | 16.5 |
| 12.1% | 109 | 301 mg/dL | 16.7 |
| 12.2% | 110 | 303 mg/dL | 16.8 |
| 12.3% | 111 | 306 mg/dL | 17.0 |
| 12.4% | 112 | 309 mg/dL | 17.2 |
| 12.5% | 113 | 312 mg/dL | 17.3 |
| 12.6% | 114 | 315 mg/dL | 17.5 |
| 12.7% | 115 | 318 mg/dL | 17.6 |
| 12.8% | 116 | 321 mg/dL | 17.8 |
| 12.9% | 117 | 324 mg/dL | 18.0 |
| 13.0% | 119 | 326 mg/dL | 18.1 |
| 13.1% | 120 | 329 mg/dL | 18.3 |
| 13.2% | 121 | 332 mg/dL | 18.4 |
| 13.3% | 122 | 335 mg/dL | 18.6 |
| 13.4% | 123 | 338 mg/dL | 18.8 |
| 13.5% | 124 | 341 mg/dL | 18.9 |
| 13.6% | 125 | 344 mg/dL | 19.1 |
| 13.7% | 126 | 346 mg/dL | 19.2 |
| 13.8% | 127 | 349 mg/dL | 19.4 |
| 13.9% | 128 | 352 mg/dL | 19.6 |
| 14.0% | 130 | 355 mg/dL | 19.7 |
What your A1C means
One page per result: where it sits against the ADA lines, the average glucose behind it, and what usually happens next.
5.0%5.1%5.2%5.3%5.4%5.5%5.6%5.7%5.8%5.9%6.0%6.1%6.2%6.3%6.4%6.5%6.6%6.7%6.8%6.9%7.0%7.1%7.2%7.3%7.4%7.5%7.6%7.7%7.8%7.9%8.0%
Questions
What A1C does a glucose of 154 mg/dL equal?
About 7.0%. That's the ADAG line: A1C = (average glucose + 46.7) ÷ 28.7.
Can I use one finger-prick reading?
Not well. The formula is for an average over weeks. One reading, even a fasting one, doesn't stand in for that.
Is an estimated A1C the same as a lab A1C?
No. It's an estimate from an average. Only a lab A1C is used to diagnose prediabetes or diabetes.
What's the difference from GMI?
GMI is built for continuous glucose monitor data, from a later study. If your average comes from a sensor, the GMI calculator suits it better.
Sources
Written by LifeFrom from the sources above, and not yet reviewed by a clinician. An estimate for your own understanding: it doesn't diagnose or treat anything, and it doesn't replace your doctor.
