Enter a reading in mg/dL or mmol/L. The tool multiplies or divides by 18.0182 to show the equivalent value instantly.
mmol/L = mg/dL ÷ 18.0182, and mg/dL = mmol/L × 18.0182 for glucose.
100 mg/dL ≈ 5.55 mmol/L, a common fasting reference value.
It reflects the molar mass of glucose (about 180.16 g/mol) scaled between the two unit systems.