Insulin Dose Calculator
Correction doses, carb ratios & sliding scales
โ๏ธ Calculation Mode
Meal Bolus
Correction Dose
Total Daily Insulin
Sliding Scale
Carbohydrates in Meal (g)
Insulin:Carb Ratio (g/unit)
1:5 (5g per unit)
1:8
1:10
1:12
1:15
1:20
Current BG (mg/dL)
Target BG (mg/dL)
Insulin Sensitivity Factor (mg/dL per unit)
30 mg/dL/unit
40
50
60
75
100
Insulin on Board (units)
Current Blood Glucose (mg/dL)
Target Blood Glucose (mg/dL)
Correction Factor / ISF (mg/dL per unit)
30
40
50
60
75
100
Insulin on Board (units)
Body Weight (kg)
Calculation Method
Standard (0.5-0.6 U/kg)
Insulin Resistant (0.7-1.0 U/kg)
Insulin Sensitive (0.3-0.5 U/kg)
New-onset T1DM (0.4-0.5 U/kg)
Current Blood Glucose (mg/dL)
Scale Sensitivity
Conservative
Moderate
Aggressive
Calculate
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๐ Sliding Scale Reference
๐ Insulin Calculation Formulas
500 Rule ( Estimate Carb Ratio)
Carb Ratio = 500 รท Total Daily Insulin
Example: TDI 50 units โ 500/50 = 1:10 ratio
1800 Rule (Estimate Correction Factor)
ISF = 1800 รท Total Daily Insulin
Example: TDI 50 units โ 1800/50 = 36 mg/dL/unit
Total Daily Insulin (TDI)
Type 1 DM: 0.5-0.6 U/kg/day
Type 2 DM: 0.3-1.0 U/kg/day (varies widely)
Basal: ~50% of TDI
Bolus: ~50% of TDI (divided among meals)
Target Blood Glucose Ranges
Pre-meal: 80-130 mg/dL
2-hr post-meal: <180 mg/dL
Bedtime: 100-140 mg/dL
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Disclaimer:
This calculator provides estimates only. Individual insulin requirements vary. Always follow your healthcare provider's prescribed regimen and adjust based on clinical judgment. Never use calculated doses without medical supervision.