Home
Back
Insulin to Carb Ratio (ICR) Equation:
| From: | To: |
The Insulin to Carb Ratio (ICR) is a key parameter in diabetes management that determines how many grams of carbohydrates are covered by one unit of rapid-acting insulin. It helps individuals with diabetes calculate their mealtime insulin doses more accurately.
The calculator uses the standard ICR formula:
Where:
Explanation: The "500 Rule" is a commonly used method to estimate the insulin-to-carb ratio based on an individual's total daily insulin requirement.
Details: Accurate ICR calculation is essential for proper mealtime insulin dosing, helping to maintain stable blood glucose levels after meals and prevent both hyperglycemia and hypoglycemia.
Tips: Enter your total daily insulin dose in units. This should include both basal (long-acting) and bolus (mealtime) insulin. The value must be greater than zero.
Q1: What is the 500 Rule?
A: The 500 Rule is a formula used to estimate insulin-to-carb ratio by dividing 500 by the total daily insulin dose. It provides a starting point for insulin dosing calculations.
Q2: Is this ratio the same for everyone?
A: No, insulin sensitivity varies among individuals. The calculated ratio should be used as a starting point and adjusted based on individual response and healthcare provider guidance.
Q3: When should I adjust my insulin-to-carb ratio?
A: Adjustments may be needed if you consistently experience high or low blood glucose levels after meals, or when there are changes in weight, activity level, or insulin sensitivity.
Q4: Are there other methods to calculate ICR?
A: Yes, some use the 450 Rule for children or those who are more insulin sensitive, and some healthcare providers use weight-based calculations. Always follow your healthcare team's recommendations.
Q5: Should this calculator replace medical advice?
A: No, this calculator provides an estimate only. Always consult with your healthcare provider for personalized insulin dosing recommendations and adjustments.