Here’s how to calculate insulin resistance: Multiply your fasting glucose levels (in mg/dL) by your fasting insulin levels (in μU/mL), then divide the result by 405. This gives you a measurement of insulin resistance (called HOMA-IR), which shows you how bad your body is at reducing glucose spikes. And here’s a quick guide to understand your result: 👉 If less than 2: no insulin resistance (great!) 👉 If 2-2.9: early insulin resistance 👉 If more than 3: significant insulin resistance | Glucose