Blood Sugar to A1C Calculator

Free online Blood Sugar to A1C Calculator – Calculate A1C from blood sugar just enter Average Blood Sugar in mg/dl or mmol/l then click the calculate button.

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Blood Sugar to A1C Formula

There is no direct conversion between blood sugar and A1C. However, there are some formulas that can be used to A1C from an average blood sugar level.

  1. A1C = (Average blood sugar(mg/dl) + 46.7) / 28.7
  2. A1C = (Average blood sugar(mmol/l) + 2.04) / 1.59

Blood Sugar to A1C Conversion Chart

Average Blood SugarA1CAverage Blood SugarA1C
100 mg/dl5.11%101 mg/dl5.15%
102 mg/dl5.18%103 mg/dl5.22%
104 mg/dl5.25%105 mg/dl5.29%
106 mg/dl5.32%107 mg/dl5.36%
108 mg/dl5.39%109 mg/dl5.43%
110 mg/dl5.46%111 mg/dl5.49%
112 mg/dl5.53%113 mg/dl5.56%
114 mg/dl5.60%115 mg/dl5.63%
116 mg/dl5.67%117 mg/dl5.70%
118 mg/dl5.74%119 mg/dl5.77%
120 mg/dl5.81%121 mg/dl5.84%
122 mg/dl5.88%123 mg/dl5.91%
124 mg/dl5.95%125 mg/dl5.98%
126 mg/dl6.02%127 mg/dl6.05%
128 mg/dl6.09%129 mg/dl6.12%
130 mg/dl6.16%131 mg/dl6.19%
132 mg/dl6.23%133 mg/dl6.26%
134 mg/dl6.30%135 mg/dl6.33%
136 mg/dl6.37%137 mg/dl6.40%
138 mg/dl6.44%139 mg/dl6.47%
140 mg/dl6.51%141 mg/dl6.54%
142 mg/dl6.57%143 mg/dl6.61%
144 mg/dl6.64%145 mg/dl6.68%
146 mg/dl6.71%147 mg/dl6.75%
148 mg/dl6.78%149 mg/dl6.82%
150 mg/dl6.85%153 mg/dl6.96%
156 mg/dl7.06%157 mg/dl7.10%
166 mg/dl7.41%168 mg/dl7.48%
174 mg/dl7.69%175 mg/dl7.72%
177 mg/dl7.79%183 mg/dl8.00%
189 mg/dl8.21%200 mg/dl8.60%

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Reference:-


https://pubmed.ncbi.nlm.nih.gov/18540046/

https://my.clevelandclinic.org/health/diagnostics/9731-a1c

https://www.childrensdayton.org/sites/default/files/EP8215_A1CConversionTableCard_Print.pdf