Insulin on Board Calculator
Calculate active insulin remaining in your body to prevent insulin stacking and hypoglycemia. Essential for pump users and multiple daily injection (MDI) therapy.
Step 1: Insulin Details
Understanding Insulin On Board (IOB)
Insulin on Board refers to the amount of active insulin remaining in your body from previous doses. Tracking IOB helps prevent insulin stacking and reduces hypoglycemia risk.
Step 2: Correction & Carbs
Preventing Insulin Stacking
Insulin stacking occurs when you give additional insulin before previous doses have finished working. This calculator helps you account for active insulin to prevent dangerous lows.
Insulin Calculation Results
Active Insulin On Board
Dose Calculation Breakdown
| Component | Calculation | Result |
|---|
Calculation Formula
IOB = Total Dose × (1 – Time Elapsed / Insulin Duration)
Correction Dose = (Current BG – Target BG) / Correction Factor
Carb Dose = Carbs to Eat / Carb Ratio
Recommended Dose = Max(0, Correction Dose + Carb Dose – IOB)
Insulin Activity Timeline
Insulin Stacking Risk
High Risk of Hypoglycemia
Your active insulin level is significant. Consider:
1. Waiting before taking additional insulin
2. Reducing your next dose by 4.2 units
3. Checking blood glucose more frequently
4. Having fast-acting carbs available
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