Start by entering your age, body size and basic metabolic data on the left. Your personalised risk band will appear here.
Learn more about prediabetes & metabolic health
Understanding prediabetes, blood sugar and type 2 diabetes
SugarRisk is an educational tool. Use this section to better understand what your score might point to and what to discuss with your doctor.
What is prediabetes?
Prediabetes means your blood sugar is higher than usual, but not yet in the diabetes range. Many people have no symptoms at all. It is often picked up on routine blood work or screening tests.
Typical lab ranges used in many guidelines
- Fasting blood sugar – usual: below 100 mg/dL; prediabetes: 100–125 mg/dL; diabetes: 126 mg/dL or higher on repeat tests.
- A1C – usual: below 5.7%; prediabetes: 5.7–6.4%; diabetes: 6.5% or higher on repeat tests.
- OGTT (2-hour oral glucose test) – usual: below 140 mg/dL; prediabetes: 140–199 mg/dL; diabetes: 200 mg/dL or higher.
Different countries and organisations may use slightly different cut-offs. Only your healthcare team can interpret your labs in context.
Common types of raised blood sugar
- Prediabetes – a warning stage where lifestyle changes can make a big difference.
- Type 2 diabetes – the most common form, often linked to insulin resistance, weight, genetics and age.
- Type 1 diabetes – an autoimmune condition where the pancreas produces little or no insulin.
- Gestational diabetes – raised blood sugar first found in pregnancy.
Key risk factors this calculator looks at
- Age – risk rises gradually from the mid-30s and more after 45–50.
- Body size – raised BMI and a larger waist are linked with higher insulin resistance.
- Family history – having a parent or sibling with type 2 diabetes raises lifetime risk.
- Blood pressure – high blood pressure often travels together with metabolic problems.
- Activity level – regular movement can improve insulin sensitivity.
- Blood sugar and A1C – if you add lab values, the score will react more strongly.
What to do with a higher score
A higher SugarRisk score does not mean you definitely have prediabetes or diabetes. It simply suggests you may benefit from:
- Talking to your doctor or nurse about screening and follow-up tests.
- Reviewing your current lifestyle: sleep, movement, stress, smoking, alcohol and food patterns.
- Agreeing on a personalised plan for weight, blood pressure and blood sugar goals.
Important: SugarRisk does not provide medical care, diagnosis or treatment. Never delay or ignore medical advice from your doctor because of something you see here. If your numbers worry you or you feel unwell, seek professional care.