Diabetes Risk Calculator — FINDRISC Type 2 Risk Score

This tool uses the FINDRISC (Finnish Diabetes Risk Score), published by Lindström and Tuomilehto in Diabetes Care in 2003. FINDRISC was built to predict drug-treated type 2 diabetes over 10 years using only information a person can supply without a blood sample, which is why it works as a fast self-check. It adds eight item scores into a single total from 0 to 26.

1. Age: under 45 → 0; 45–54 → 2; 55–64 → 3; over 64 → 4.
2. BMI (weight kg ÷ height m²): under 25 → 0; 25–30 → 1; over 30 → 3. The tool computes BMI from your height and weight.
3. Waist circumference (sex-specific): men under 94 → 0, 94–102 → 3, over 102 → 4; women under 80 → 0, 80–88 → 3, over 88 → 4.
4. Physical activity ≥30 min/day: yes → 0; no → 2.
5. Vegetables, fruit or berries every day: yes → 0; no → 1.
6. Regular blood-pressure medication, ever: no → 0; yes → 2.
7. High blood glucose found before (check-up, illness or pregnancy): no → 0; yes → 5.
8. Family history: none → 0; grandparent, aunt, uncle or cousin → 3; parent, sibling or own child → 5.

The total maps to a 10-year risk band using the percentages from the same Finnish follow-up cohort:

• 0–6: Low — ≈1 in 100 (~1%)
• 7–11: Slightly elevated — ≈1 in 25 (~4%)
• 12–14: Moderate — ≈1 in 6 (~17%)
• 15–20: High — ≈1 in 3 (~33%)
• 21–26: Very high — ≈1 in 2 (~50%)

To keep the result trustworthy, the calculator computes the score two ways: directly from your measurements, and by adding the per-question points the way you would on the paper FINDRISC form. Both must match, and the “point-sum cross-check” under the score shows the second figure. One caveat matters locally: FINDRISC was validated in a European population, and South Asians — including Sri Lankans — develop type 2 diabetes at a lower waist and BMI. The IDF central-obesity waist cut-off for South Asians is 90 cm for men and 80 cm for women. The tool flags this as advisory context but does not change the validated points, because no re-validated Sri Lankan cut-offs exist to cite.

• Lindström & Tuomilehto — The Diabetes Risk Score (FINDRISC), Diabetes Care 2003;26(3):725–731
• International Diabetes Federation — Type 2 diabetes risk & South-Asian waist cut-offs
• World Health Organization — Diabetes fact sheet
• Katulanda et al. — Prevalence of diabetes and pre-diabetes in Sri Lanka (Diabet Med 2008)

The item bands and 10-year risk figures were last cross-checked against the FINDRISC source on 2026-06-28. This tool is a screening aid, not a medical diagnosis, and does not replace a fasting blood glucose or HbA1c test.