A “normal” blood glucose level comes in at around 4 – 7 mmol/L or 4 – 8 mmol/L for a child with Type 1 diabetes before meals. Two hours after a meal, a normal blood sugar range should be under 9 mmol/L for people with T1D. For T2D, the upper range is slightly lower at 8.5 mmol/L. You can find additional information on the Diabetes UK website. If you’re in the US: