Free Diabetes TrackerIs my blood sugar normal?
Type in your reading to see which UK target range it falls in. It takes a few seconds and nothing is saved.
Target for waking / fasting: 4.0 to 7.0 mmol/L.
Nothing you type here is saved or sent anywhere.
UK blood sugar target ranges (mmol/L)
What counts as in range depends on the type of diabetes and when you tested. These are general UK targets from Diabetes UK and NICE – your own targets are agreed with your diabetes team.
| Who | Waking / before meals | After meals |
|---|---|---|
| Adults, type 1 | 5 to 7 on waking; 4 to 7 before other meals | 5 to 9 |
| Children, type 1 | 4 to 7 | 5 to 9 |
| Adults, type 2 | 4 to 7 | Under 8.5 |
| In pregnancy | Below 5.3 (fasting) | Below 7.8 at 1 hour |
| No diabetes / prediabetes goal | 4.0 to 5.4 | Under 7.8 |
The two lines that matter for everyone
Below 4.0 mmol/L is a hypo and needs treating straight away (“4 is the floor”). At 15 mmol/L or above, especially with type 1, you may need to check for ketones.
Getting a reading you can trust
Wash and dry your hands first – food or juice on your fingers can read falsely high. Use in-date strips and enough blood. More in Testing at home and Understanding your numbers.
Want to keep track?
Free Diabetes Tracker keeps your readings in one place, shows your time in range and draws your trend. Prefer paper? Download our free printable blood sugar log.
Ranges from Diabetes UK, NICE and the NHS, checked on . See all official sources. This checker is for information only and isn't a diagnosis.