Tools › Blood sugar values › 120 mg/dL
Is 120 mg/dL Blood Sugar Normal?
120 mg/dL (6.7 mmol/L) is in the prediabetes range when measured fasting. Below: what it means in three common contexts, the converter to mmol/L, and what to do next.
Prediabetes range
100–125 mg/dL fasting is the prediabetes range. The Diabetes Prevention Program showed that 5–7% weight loss + 150 min/week of activity reduces progression to T2D by ~58%.
120 mg/dL in three common contexts
Fasting
100–125 mg/dL fasting is the prediabetes range. The Diabetes Prevention Program showed that 5–7% weight loss + 150 min/week of activity reduces progression to…
Prediabetes fasting range
After a meal
140–199 mg/dL 1–2 hours after a meal points to impaired glucose tolerance — a prediabetes signal. Try food-order tricks (protein/fat/fiber before carbs) and a…
Borderline post-meal glucose
Random check
Slightly elevated for a random check. If you tested fasting, this would point to prediabetes — worth a follow-up A1C test.
Prediabetes range
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Common questions
Is 120 mg/dL blood sugar normal?
120 mg/dL (6.7 mmol/L) is in the prediabetes range when measured fasting. 100–125 mg/dL fasting is the prediabetes range. The Diabetes Prevention Program showed that 5–7% weight loss + 150 min/week of activity reduces progression to T2D by ~58%.
Is 120 mg/dL high after eating?
140–199 mg/dL 1–2 hours after a meal points to impaired glucose tolerance — a prediabetes signal. Try food-order tricks (protein/fat/fiber before carbs) and a 10-min post-meal walk.
What is 120 mg/dL in mmol/L?
120 mg/dL equals 6.7 mmol/L. Divide mg/dL by 18 to convert. The exact factor is 18.0182.
Should I worry about 120 mg/dL?
Worth attention but not panic. Lifestyle changes can move you out of the prediabetes range.