Units conversion
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To convert from American or conventional units to European or SI units multiply the American result by the conversion factor to obtain an equivalent European measure. Divide the European result by the conversion factor to obtain an equivalent American measure.
Item
Vitamin D 25-Hydroxy
Vitamin B12
Triiodothyronine, free (T3)
Thyroxine, free (T4)
Sodium
Potassium
Progesterone
Magnesium
Iron, total
Iron binding capacity, total
Ferritin
Homocysteine (total)
Glucose
Estradiol
Estriol
Estrone
European
pmol/L
pmol/L
nmol/L
pmol/L
mmol/L
mmoI/L
nmol/L
mmol/L
µmol/L
µmol/L
pmol/L
µmol/L
mmol/L
pmol/L
nmol/L
pmoI/L
Factor
2.496
0.738
0.0154
12.87
1
1
3.18
0.411
0.179
0.179
2.247
7.397
0.0555
3.671
3.467
37
American
ng/mL
pg/mL
pg/dL
ng/dL
mEq/L
mEq/L
ng/mL
mg/dL
µg/dL
µg/dL
ng/mL
mg/L
mg/dL
pg/mL
ng/mL
ng/dL
Convert HbA1c to average blood glucose
Average plasma blood glucose in mg/dL = HbA1c x 35.6 - 77.3
HbA1c 5 = average blood glucose 100
HbA1c 5.2 = average blood glucose 108