Insulin Correction Dose Calculator
Estimate a correction dose from current glucose, target and correction factor.
Your result
Use only the dose and factor your own clinician has set. This is arithmetic, not dosing advice, and it does not account for insulin already active.
Medical disclaimer: This tool is for education and is not medical advice. Read more.
Search by intent
Find this tool when you want to:
Learn more
HbA1c Explained: What Your Result Means
A1C shows average blood sugar over about three months.
Diabetes & Blood SugarPrediabetes: Can You Reverse It?
Lifestyle changes can cut the risk of progressing to type 2 diabetes by more than half.
Diabetes & Blood SugarFasting Blood Sugar Ranges and Units
Normal, prediabetes and diabetes ranges in mg/dL and mmol/L.
Frequently asked questions
What does the Insulin Correction Dose Calculator do?
Estimate a correction dose from current glucose, target and correction factor. Enter your values and the result and chart update instantly.
How accurate is it?
It uses published, widely used formulas. Results are estimates for education and planning, not a diagnosis. Talk to a qualified clinician about decisions affecting your health.
Is my information stored or shared?
No. All calculations run in your browser and nothing you type is sent to a server or saved.
What can I search to find this tool?
People find it by searching for: correction insulin dose; how much rapid insulin for high sugar; sliding scale insulin math.