Bolus Calculator — Calculate Insulin Doses for Diabetes Management

Bolus Calculator

Calculate precise insulin bolus doses for diabetes management. Factor in blood glucose levels, carbohydrates, insulin sensitivity, and correction factors.

Step 1: Blood Glucose & Carbs

150 mg/dL
100 mg/dL
60 g

Understanding Bolus Dosing

Bolus insulin covers carbohydrates in meals and corrects high blood sugar. Your total dose includes both carb coverage (based on carb ratio) and correction (based on sensitivity factor).

Step 2: Insulin Settings

g/u
mg/dL/u
0.0 u

About Insulin Settings

Carb ratio determines how many grams of carbs 1 unit covers. Sensitivity factor shows how much 1 unit lowers blood glucose. These are personalized values set with your healthcare provider.

Bolus Calculation Results

Summary
Scenarios
Breakdown

Recommended Bolus Dose

4.8 units
Based on 60g carbs and correction from 150 to 100 mg/dL
Carb Coverage
4.0 units
Correction Dose
1.0 unit
Active Insulin
-0.2 units
Projected BG
100 mg/dL

Sensitivity Factor Scenarios

Sensitivity Level Sensitivity Factor Correction Dose Total Bolus

Dose Breakdown

Bolus Formula

Bolus = (Carbs / Carb Ratio) + ((Current BG – Target BG) / Sensitivity) – Active Insulin

This formula calculates the total insulin dose needed to cover carbohydrates and correct high blood sugar, while accounting for any insulin still active from previous doses.

Need Professional Medical Advice?

Always consult with your healthcare provider before making changes to your insulin regimen. This calculator is for educational purposes only.

Consult Healthcare Provider